diff --git a/audio/2.0/IDevice.hal b/audio/2.0/IDevice.hal
index 2b5329b..62c2081 100644
--- a/audio/2.0/IDevice.hal
+++ b/audio/2.0/IDevice.hal
@@ -23,14 +23,14 @@
 interface IDevice {
     typedef android.hardware.audio@2.0::Result Result;
 
-    /*
+    /**
      * Returns whether the audio hardware interface has been initialized.
      *
      * @return retval OK on success, NOT_INITIALIZED on failure.
      */
     initCheck() generates (Result retval);
 
-    /*
+    /**
      * Sets the audio volume for all audio activities other than voice call. If
      * NOT_SUPPORTED is returned, the software mixer will emulate this
      * capability.
@@ -40,7 +40,7 @@
      */
     setMasterVolume(float volume) generates (Result retval);
 
-    /*
+    /**
      * Get the current master volume value for the HAL, if the HAL supports
      * master volume control. For example, AudioFlinger will query this value
      * from the primary audio HAL when the service starts and use the value for
@@ -52,7 +52,7 @@
      */
     getMasterVolume() generates (Result retval, float volume);
 
-    /*
+    /**
      * Sets microphone muting state.
      *
      * @param mute whether microphone is muted.
@@ -60,7 +60,7 @@
      */
     setMicMute(bool mute) generates (Result retval);
 
-    /*
+    /**
      * Gets whether microphone is muted.
      *
      * @return retval operation completion status.
@@ -68,7 +68,7 @@
      */
     getMicMute() generates (Result retval, bool mute);
 
-    /*
+    /**
      * Set the audio mute status for all audio activities. If the return value
      * is NOT_SUPPORTED, the software mixer will emulate this capability.
      *
@@ -89,7 +89,7 @@
      */
     getMasterMute() generates (Result retval, bool mute);
 
-    /*
+    /**
      * Returns audio input buffer size according to parameters passed or
      * INVALID_ARGUMENTS if one of the parameters is not supported.
      *
@@ -100,7 +100,7 @@
     getInputBufferSize(AudioConfig config)
             generates (Result retval, uint64_t bufferSize);
 
-    /*
+    /**
      * This method creates and opens the audio hardware output stream.
      * If the stream can not be opened with the proposed audio config,
      * HAL must provide suggested values for the audio config.
@@ -122,7 +122,7 @@
                     IStreamOut outStream,
                     AudioConfig suggestedConfig);
 
-    /*
+    /**
      * This method creates and opens the audio hardware input stream.
      * If the stream can not be opened with the proposed audio config,
      * HAL must provide suggested values for the audio config.
@@ -146,14 +146,14 @@
                     IStreamIn inStream,
                     AudioConfig suggestedConfig);
 
-    /*
+    /**
      * Returns whether HAL supports audio patches.
      *
      * @return supports true if audio patches are supported.
      */
     supportsAudioPatches() generates (bool supports);
 
-    /*
+    /**
      * Creates an audio patch between several source and sink ports.  The handle
      * is allocated by the HAL and must be unique for this audio HAL module.
      *
@@ -165,7 +165,7 @@
     createAudioPatch(vec<AudioPortConfig> sources, vec<AudioPortConfig> sinks)
             generates (Result retval, AudioPatchHandle patch);
 
-    /*
+    /**
      * Release an audio patch.
      *
      * @param patch patch handle.
@@ -173,7 +173,7 @@
      */
     releaseAudioPatch(AudioPatchHandle patch) generates (Result retval);
 
-    /*
+    /**
      * Returns the list of supported attributes for a given audio port.
      *
      * As input, 'port' contains the information (type, role, address etc...)
@@ -189,7 +189,7 @@
     getAudioPort(AudioPort port)
             generates (Result retval, AudioPort resultPort);
 
-    /*
+    /**
      * Set audio port configuration.
      *
      * @param config audio port configuration.
@@ -197,7 +197,7 @@
      */
     setAudioPortConfig(AudioPortConfig config) generates (Result retval);
 
-    /*
+    /**
      * Gets the HW synchronization source of the device. Calling this method is
      * equivalent to getting AUDIO_PARAMETER_HW_AV_SYNC on the legacy HAL.
      *
@@ -205,7 +205,7 @@
      */
     getHwAvSync() generates (AudioHwSync hwAvSync);
 
-    /*
+    /**
      * Sets whether the screen is on. Calling this method is equivalent to
      * setting AUDIO_PARAMETER_KEY_SCREEN_STATE on the legacy HAL.
      *
@@ -214,7 +214,7 @@
      */
     setScreenState(bool turnedOn) generates (Result retval);
 
-    /*
+    /**
      * Generic method for retrieving vendor-specific parameter values.
      * The framework does not interpret the parameters, they are passed
      * in an opaque manner between a vendor application and HAL.
@@ -226,7 +226,7 @@
     getParameters(vec<string> keys)
             generates (Result retval, vec<ParameterValue> parameters);
 
-    /*
+    /**
      * Generic method for setting vendor-specific parameter values.
      * The framework does not interpret the parameters, they are passed
      * in an opaque manner between a vendor application and HAL.
@@ -236,7 +236,7 @@
      */
     setParameters(vec<ParameterValue> parameters) generates (Result retval);
 
-    /*
+    /**
      * Dumps information about the stream into the provided file descriptor.
      * This is used for the dumpsys facility.
      *
diff --git a/audio/2.0/IDevicesFactory.hal b/audio/2.0/IDevicesFactory.hal
index 0ef6bc5..6bbe7a1 100644
--- a/audio/2.0/IDevicesFactory.hal
+++ b/audio/2.0/IDevicesFactory.hal
@@ -30,7 +30,7 @@
         STUB
     };
 
-    /*
+    /**
      * Opens an audio device. To close the device, it is necessary to release
      * references to the returned device object.
      *
diff --git a/audio/2.0/IPrimaryDevice.hal b/audio/2.0/IPrimaryDevice.hal
index f1dd56e..adeb366 100644
--- a/audio/2.0/IPrimaryDevice.hal
+++ b/audio/2.0/IPrimaryDevice.hal
@@ -22,7 +22,7 @@
 interface IPrimaryDevice extends IDevice {
     typedef android.hardware.audio@2.0::Result Result;
 
-    /*
+    /**
      * Sets the audio volume of a voice call.
      *
      * @param volume 1.0f means unity, 0.0f is zero.
@@ -30,7 +30,7 @@
      */
     setVoiceVolume(float volume) generates (Result retval);
 
-    /*
+    /**
      * This method is used to notify the HAL about audio mode changes.
      *
      * @param mode new mode.
@@ -38,7 +38,7 @@
      */
     setMode(AudioMode mode) generates (Result retval);
 
-    /*
+    /**
      * Gets whether BT SCO Noise Reduction and Echo Cancellation are enabled.
      * Calling this method is equivalent to getting AUDIO_PARAMETER_KEY_BT_NREC
      * on the legacy HAL.
@@ -48,7 +48,7 @@
      */
     getBtScoNrecEnabled() generates (Result retval, bool enabled);
 
-    /*
+    /**
      * Sets whether BT SCO Noise Reduction and Echo Cancellation are enabled.
      * Calling this method is equivalent to setting AUDIO_PARAMETER_KEY_BT_NREC
      * on the legacy HAL.
@@ -58,7 +58,7 @@
      */
     setBtScoNrecEnabled(bool enabled) generates (Result retval);
 
-    /*
+    /**
      * Gets whether BT SCO Wideband mode is enabled. Calling this method is
      * equivalent to getting AUDIO_PARAMETER_KEY_BT_SCO_WB on the legacy HAL.
      *
@@ -67,7 +67,7 @@
      */
     getBtScoWidebandEnabled() generates (Result retval, bool enabled);
 
-    /*
+    /**
      * Sets whether BT SCO Wideband mode is enabled. Calling this method is
      * equivalent to setting AUDIO_PARAMETER_KEY_BT_SCO_WB on the legacy HAL.
      *
@@ -83,7 +83,7 @@
         FULL
     };
 
-    /*
+    /**
      * Gets current TTY mode selection. Calling this method is equivalent to
      * getting AUDIO_PARAMETER_KEY_TTY_MODE on the legacy HAL.
      *
@@ -92,7 +92,7 @@
      */
     getTtyMode() generates (Result retval, TtyMode mode);
 
-    /*
+    /**
      * Sets current TTY mode. Calling this method is equivalent to setting
      * AUDIO_PARAMETER_KEY_TTY_MODE on the legacy HAL.
      *
@@ -101,7 +101,7 @@
      */
     setTtyMode(TtyMode mode) generates (Result retval);
 
-    /*
+    /**
      * Gets whether Hearing Aid Compatibility - Telecoil (HAC-T) mode is
      * enabled. Calling this method is equivalent to getting
      * AUDIO_PARAMETER_KEY_HAC on the legacy HAL.
@@ -111,7 +111,7 @@
      */
     getHacEnabled() generates (Result retval, bool enabled);
 
-    /*
+    /**
      * Sets whether Hearing Aid Compatibility - Telecoil (HAC-T) mode is
      * enabled. Calling this method is equivalent to setting
      * AUDIO_PARAMETER_KEY_HAC on the legacy HAL.
diff --git a/audio/2.0/IStream.hal b/audio/2.0/IStream.hal
index 8de7851..2b9cc06 100644
--- a/audio/2.0/IStream.hal
+++ b/audio/2.0/IStream.hal
@@ -22,14 +22,14 @@
 interface IStream {
     typedef android.hardware.audio@2.0::Result Result;
 
-    /*
+    /**
      * Return the frame size (number of bytes per sample).
      *
      * @return frameSize frame size in bytes.
      */
     getFrameSize() generates (uint64_t frameSize);
 
-    /*
+    /**
      * Return the frame count of the buffer. Calling this method is equivalent
      * to getting AUDIO_PARAMETER_STREAM_FRAME_COUNT on the legacy HAL.
      *
@@ -37,7 +37,7 @@
      */
     getFrameCount() generates (uint64_t count);
 
-    /*
+    /**
      * Return the size of input/output buffer in bytes for this stream.
      * It must be a multiple of the frame size.
      *
@@ -45,14 +45,14 @@
      */
     getBufferSize() generates (uint64_t bufferSize);
 
-    /*
+    /**
      * Return the sampling rate in Hz.
      *
      * @return sampleRateHz sample rate in Hz.
      */
     getSampleRate() generates (uint32_t sampleRateHz);
 
-    /*
+    /**
      * Return supported sampling rates of the stream. Calling this method is
      * equivalent to getting AUDIO_PARAMETER_STREAM_SUP_SAMPLING_RATES on the
      * legacy HAL.
@@ -61,7 +61,7 @@
      */
     getSupportedSampleRates() generates (vec<uint32_t> sampleRates);
 
-    /*
+    /**
      * Sets the sampling rate of the stream. Calling this method is equivalent
      * to setting AUDIO_PARAMETER_STREAM_SAMPLING_RATE on the legacy HAL.
      *
@@ -70,14 +70,14 @@
      */
     setSampleRate(uint32_t sampleRateHz) generates (Result retval);
 
-    /*
+    /**
      * Return the channel mask of the stream.
      *
      * @return mask channel mask.
      */
     getChannelMask() generates (AudioChannelMask mask);
 
-    /*
+    /**
      * Return supported channel masks of the stream. Calling this method is
      * equivalent to getting AUDIO_PARAMETER_STREAM_SUP_CHANNELS on the legacy
      * HAL.
@@ -86,7 +86,7 @@
      */
     getSupportedChannelMasks() generates (vec<AudioChannelMask> masks);
 
-    /*
+    /**
      * Sets the channel mask of the stream. Calling this method is equivalent to
      * setting AUDIO_PARAMETER_STREAM_CHANNELS on the legacy HAL.
      *
@@ -95,14 +95,14 @@
      */
     setChannelMask(AudioChannelMask mask) generates (Result retval);
 
-    /*
+    /**
      * Return the audio format of the stream.
      *
      * @return format audio format.
      */
     getFormat() generates (AudioFormat format);
 
-    /*
+    /**
      * Return supported audio formats of the stream. Calling this method is
      * equivalent to getting AUDIO_PARAMETER_STREAM_SUP_FORMATS on the legacy
      * HAL.
@@ -111,7 +111,7 @@
      */
     getSupportedFormats() generates (vec<AudioFormat> formats);
 
-    /*
+    /**
      * Sets the audio format of the stream. Calling this method is equivalent to
      * setting AUDIO_PARAMETER_STREAM_FORMAT on the legacy HAL.
      *
@@ -120,7 +120,7 @@
      */
     setFormat(AudioFormat format) generates (Result retval);
 
-    /*
+    /**
      * Convenience method for retrieving several stream parameters in
      * one transaction.
      *
@@ -131,7 +131,7 @@
     getAudioProperties() generates (
             uint32_t sampleRateHz, AudioChannelMask mask, AudioFormat format);
 
-    /*
+    /**
      * Applies audio effect to the stream.
      *
      * @param effectId effect ID (obtained from IEffectsFactory.createEffect) of
@@ -140,7 +140,7 @@
      */
     addEffect(uint64_t effectId) generates (Result retval);
 
-    /*
+    /**
      * Stops application of the effect to the stream.
      *
      * @param effectId effect ID (obtained from IEffectsFactory.createEffect) of
@@ -149,7 +149,7 @@
      */
     removeEffect(uint64_t effectId) generates (Result retval);
 
-    /*
+    /**
      * Put the audio hardware input/output into standby mode.
      * Driver must exit from standby mode at the next I/O operation.
      *
@@ -157,14 +157,14 @@
      */
     standby() generates (Result retval);
 
-    /*
+    /**
      * Return the set of device(s) which this stream is connected to.
      *
      * @return device set of device(s) which this stream is connected to.
      */
     getDevice() generates (AudioDevice device);
 
-    /*
+    /**
      * Connects the stream to the device.
      *
      * This method must only be used for HALs that do not support
@@ -177,7 +177,7 @@
      */
     setDevice(DeviceAddress address) generates (Result retval);
 
-    /*
+    /**
      * Notifies the stream about device connection state. Calling this method is
      * equivalent to setting AUDIO_PARAMETER_DEVICE_[DIS]CONNECT on the legacy
      * HAL.
@@ -189,7 +189,7 @@
     setConnectedState(DeviceAddress address, bool connected)
             generates (Result retval);
 
-    /*
+    /**
      * Sets the HW synchronization source. Calling this method is equivalent to
      * setting AUDIO_PARAMETER_STREAM_HW_AV_SYNC on the legacy HAL.
      *
@@ -198,7 +198,7 @@
      */
     setHwAvSync(AudioHwSync hwAvSync) generates (Result retval);
 
-    /*
+    /**
      * Generic method for retrieving vendor-specific parameter values.
      * The framework does not interpret the parameters, they are passed
      * in an opaque manner between a vendor application and HAL.
@@ -210,7 +210,7 @@
     getParameters(vec<string> keys)
             generates (Result retval, vec<ParameterValue> parameters);
 
-    /*
+    /**
      * Generic method for setting vendor-specific parameter values.
      * The framework does not interpret the parameters, they are passed
      * in an opaque manner between a vendor application and HAL.
@@ -220,7 +220,7 @@
      */
     setParameters(vec<ParameterValue> parameters) generates (Result retval);
 
-    /*
+    /**
      * Dumps information about the stream into the provided file descriptor.
      * This is used for the dumpsys facility.
      *
@@ -228,7 +228,7 @@
      */
     debugDump(handle fd);
 
-    /*
+    /**
      * Called by the framework to start a stream operating in mmap mode.
      * createMmapBuffer() must be called before calling start().
      * Function only implemented by streams operating in mmap mode.
@@ -249,7 +249,7 @@
      */
     stop() generates (Result retval) ;
 
-    /*
+    /**
      * Called by the framework to retrieve information on the mmap buffer used for audio
      * samples transfer.
      * Function only implemented by streams operating in mmap mode.
@@ -266,7 +266,7 @@
     createMmapBuffer(int32_t minSizeFrames)
             generates (Result retval, MmapBufferInfo info);
 
-    /*
+    /**
      * Called by the framework to read current read/write position in the mmap buffer
      * with associated time stamp.
      * Function only implemented by streams operating in mmap mode.
@@ -280,7 +280,7 @@
     getMmapPosition()
             generates (Result retval, MmapPosition position);
 
-    /*
+    /**
      * Called by the framework to deinitialize the stream and free up
      * all the currently allocated resources. It is recommended to close
      * the stream on the client side as soon as it is becomes unused.
diff --git a/audio/2.0/IStreamIn.hal b/audio/2.0/IStreamIn.hal
index 6f1f9df..6b79f48 100644
--- a/audio/2.0/IStreamIn.hal
+++ b/audio/2.0/IStreamIn.hal
@@ -22,7 +22,7 @@
 interface IStreamIn extends IStream {
     typedef android.hardware.audio@2.0::Result Result;
 
-    /*
+    /**
      * Returns the source descriptor of the input stream. Calling this method is
      * equivalent to getting AUDIO_PARAMETER_STREAM_INPUT_SOURCE on the legacy
      * HAL.
@@ -32,7 +32,7 @@
      */
     getAudioSource() generates (Result retval, AudioSource source);
 
-    /*
+    /**
      * Set the input gain for the audio driver.
      *
      * @param gain 1.0f is unity, 0.0f is zero.
@@ -40,7 +40,7 @@
      */
     setGain(float gain) generates (Result retval);
 
-    /*
+    /**
      * Commands that can be executed on the driver reader thread.
      */
     enum ReadCommand : int32_t {
@@ -48,7 +48,7 @@
         GET_CAPTURE_POSITION
     };
 
-    /*
+    /**
      * Data structure passed to the driver for executing commands
      * on the driver reader thread.
      */
@@ -60,7 +60,7 @@
         } params;
     };
 
-    /*
+    /**
      * Data structure passed back to the client via status message queue
      * of 'read' operation.
      *
@@ -81,7 +81,7 @@
         } reply;
     };
 
-    /*
+    /**
      * Set up required transports for receiving audio buffers from the driver.
      *
      * The transport consists of three message queues:
@@ -119,7 +119,7 @@
             fmq_sync<ReadStatus> statusMQ,
             ThreadInfo threadInfo);
 
-    /*
+    /**
      * Return the amount of input frames lost in the audio driver since the last
      * call of this function.
      *
diff --git a/audio/2.0/IStreamOut.hal b/audio/2.0/IStreamOut.hal
index 9ee32c5..84b7447 100644
--- a/audio/2.0/IStreamOut.hal
+++ b/audio/2.0/IStreamOut.hal
@@ -23,14 +23,14 @@
 interface IStreamOut extends IStream {
     typedef android.hardware.audio@2.0::Result Result;
 
-    /*
+    /**
      * Return the audio hardware driver estimated latency in milliseconds.
      *
      * @return latencyMs latency in milliseconds.
      */
     getLatency() generates (uint32_t latencyMs);
 
-    /*
+    /**
      * This method is used in situations where audio mixing is done in the
      * hardware. This method serves as a direct interface with hardware,
      * allowing to directly set the volume as apposed to via the framework.
@@ -43,7 +43,7 @@
      */
     setVolume(float left, float right) generates (Result retval);
 
-    /*
+    /**
      * Commands that can be executed on the driver writer thread.
      */
     enum WriteCommand : int32_t {
@@ -52,7 +52,7 @@
         GET_LATENCY
     };
 
-    /*
+    /**
      * Data structure passed back to the client via status message queue
      * of 'write' operation.
      *
@@ -75,7 +75,7 @@
         } reply;
     };
 
-    /*
+    /**
      * Set up required transports for passing audio buffers to the driver.
      *
      * The transport consists of three message queues:
@@ -112,7 +112,7 @@
             fmq_sync<WriteStatus> statusMQ,
             ThreadInfo threadInfo);
 
-    /*
+    /**
      * Return the number of audio frames written by the audio DSP to DAC since
      * the output has exited standby.
      *
@@ -121,7 +121,7 @@
      */
     getRenderPosition() generates (Result retval, uint32_t dspFrames);
 
-    /*
+    /**
      * Get the local time at which the next write to the audio driver will be
      * presented. The units are microseconds, where the epoch is decided by the
      * local audio HAL.
@@ -131,7 +131,7 @@
      */
     getNextWriteTimestamp() generates (Result retval, int64_t timestampUs);
 
-    /*
+    /**
      * Set the callback interface for notifying completion of non-blocking
      * write and drain.
      *
@@ -146,7 +146,7 @@
      */
     setCallback(IStreamOutCallback callback) generates (Result retval);
 
-    /*
+    /**
      * Clears the callback previously set via 'setCallback' method.
      *
      * Warning: failure to call this method results in callback implementation
@@ -156,7 +156,7 @@
      */
     clearCallback() generates (Result retval);
 
-    /*
+    /**
      * Returns whether HAL supports pausing and resuming of streams.
      *
      * @return supportsPause true if pausing is supported.
@@ -179,7 +179,7 @@
      */
     pause() generates (Result retval);
 
-    /*
+    /**
      * Notifies to the audio driver to resume playback following a pause.
      * Returns error INVALID_STATE if called without matching pause.
      *
@@ -189,7 +189,7 @@
      */
     resume() generates (Result retval);
 
-    /*
+    /**
      * Returns whether HAL supports draining of streams.
      *
      * @return supports true if draining is supported.
@@ -220,7 +220,7 @@
      */
     drain(AudioDrain type) generates (Result retval);
 
-    /*
+    /**
      * Notifies to the audio driver to flush the queued data. Stream must
      * already be paused before calling 'flush'.
      *
@@ -230,7 +230,7 @@
      */
     flush() generates (Result retval);
 
-    /*
+    /**
      * Return a recent count of the number of audio frames presented to an
      * external observer. This excludes frames which have been written but are
      * still in the pipeline. The count is not reset to zero when output enters
diff --git a/audio/2.0/IStreamOutCallback.hal b/audio/2.0/IStreamOutCallback.hal
index cdb38de..01e123c 100644
--- a/audio/2.0/IStreamOutCallback.hal
+++ b/audio/2.0/IStreamOutCallback.hal
@@ -16,21 +16,21 @@
 
 package android.hardware.audio@2.0;
 
-/*
+/**
  * Asynchronous write callback interface.
  */
 interface IStreamOutCallback {
-    /*
+    /**
      * Non blocking write completed.
      */
     oneway onWriteReady();
 
-    /*
+    /**
      * Drain completed.
      */
     oneway onDrainReady();
 
-    /*
+    /**
      * Stream hit an error.
      */
     oneway onError();
diff --git a/audio/2.0/types.hal b/audio/2.0/types.hal
index 8e9ff14..93118c2 100644
--- a/audio/2.0/types.hal
+++ b/audio/2.0/types.hal
@@ -28,14 +28,16 @@
 
 @export(name="audio_drain_type_t", value_prefix="AUDIO_DRAIN_")
 enum AudioDrain : int32_t {
-    /* drain() returns when all data has been played. */
+    /** drain() returns when all data has been played. */
     ALL,
-    /* drain() returns a short time before all data from the current track has
-       been played to give time for gapless track switch. */
+    /**
+     * drain() returns a short time before all data from the current track has
+     * been played to give time for gapless track switch.
+     */
     EARLY_NOTIFY
 };
 
-/*
+/**
  * A substitute for POSIX timespec.
  */
 struct TimeSpec {
@@ -43,7 +45,7 @@
     uint64_t tvNSec;  // nanoseconds
 };
 
-/*
+/**
  * IEEE 802 MAC address.
  */
 typedef uint8_t[6] MacAddress;
@@ -53,7 +55,7 @@
     string value;
 };
 
-/*
+/**
  * Specifies a device in case when several devices of the same type
  * can be connected (e.g. BT A2DP, USB).
  */
@@ -71,7 +73,7 @@
     string rSubmixAddress;  // used for REMOTE_SUBMIX
 };
 
-/*
+/**
  * Mmap buffer descriptor returned by IStream.createMmapBuffer().
  * Used by streams opened in mmap mode.
  */
@@ -81,7 +83,7 @@
     int32_t burstSizeFrames;      // transfer size granularity in frames
 };
 
-/*
+/**
  * Mmap buffer read/write position returned by IStream.getMmapPosition().
  * Used by streams opened in mmap mode.
  */
@@ -90,7 +92,7 @@
     int32_t  positionFrames;  // increasing 32 bit frame count reset when IStream.stop() is called
 };
 
-/*
+/**
  * The message queue flags used to synchronize reads and writes from
  * message queues used by StreamIn and StreamOut.
  */
diff --git a/audio/common/2.0/types.hal b/audio/common/2.0/types.hal
index dd7281d..7c49795 100644
--- a/audio/common/2.0/types.hal
+++ b/audio/common/2.0/types.hal
@@ -16,28 +16,28 @@
 
 package android.hardware.audio.common@2.0;
 
-/*
+/**
  *
  *  IDs and Handles
  *
  */
 
-/*
+/**
  * Handle type for identifying audio sources and sinks.
  */
 typedef int32_t AudioIoHandle;
 
-/*
+/**
  * Audio hw module handle functions or structures referencing a module.
  */
 typedef int32_t AudioModuleHandle;
 
-/*
+/**
  * Each port has a unique ID or handle allocated by policy manager.
  */
 typedef int32_t AudioPortHandle;
 
-/*
+/**
  * Each patch is identified by a handle at the interface used to create that
  * patch. For instance, when a patch is created by the audio HAL, the HAL
  * allocates and returns a handle.  This handle is unique to a given audio HAL
@@ -47,12 +47,12 @@
  */
 typedef int32_t AudioPatchHandle;
 
-/*
+/**
  * A HW synchronization source returned by the audio HAL.
  */
 typedef uint32_t AudioHwSync;
 
-/*
+/**
  * Each port has a unique ID or handle allocated by policy manager.
  */
 @export(name="")
@@ -63,7 +63,7 @@
     AUDIO_PATCH_HANDLE_NONE = 0,
 };
 
-/*
+/**
  * Commonly used structure for passing unique identifieds (UUID).
  * For the definition of UUID, refer to ITU-T X.667 spec.
  */
@@ -76,13 +76,13 @@
 };
 
 
-/*
+/**
  *
  *  Audio streams
  *
  */
 
-/*
+/**
  * Audio stream type describing the intented use case of a stream.
  */
 @export(name="audio_stream_type_t", value_prefix="AUDIO_STREAM_")
@@ -126,13 +126,13 @@
     CAMCORDER           = 5,
     VOICE_RECOGNITION   = 6,
     VOICE_COMMUNICATION = 7,
-    /*
+    /**
      * Source for the mix to be presented remotely. An example of remote
      * presentation is Wifi Display where a dongle attached to a TV can be used
      * to play the mix captured by this audio source.
      */
     REMOTE_SUBMIX       = 8,
-    /*
+    /**
      * Source for unprocessed sound. Usage examples include level measurement
      * and raw signal analysis.
      */
@@ -141,7 +141,7 @@
     CNT,
     MAX                 = CNT - 1,
     FM_TUNER            = 1998,
-    /*
+    /**
      * A low-priority, preemptible audio source for for background software
      * hotword detection. Same tuning as VOICE_RECOGNITION.  Used only
      * internally by the framework.
@@ -150,30 +150,30 @@
 };
 
 typedef int32_t AudioSession;
-/*
+/**
  * Special audio session values.
  */
 @export(name="audio_session_t", value_prefix="AUDIO_SESSION_")
 enum AudioSessionConsts : int32_t {
-    /*
+    /**
      * Session for effects attached to a particular output stream
      * (value must be less than 0)
      */
     OUTPUT_STAGE = -1,
-    /*
+    /**
      * Session for effects applied to output mix. These effects can
      * be moved by audio policy manager to another output stream
      * (value must be 0)
      */
     OUTPUT_MIX = 0,
-    /*
+    /**
      * Application does not specify an explicit session ID to be used, and
      * requests a new session ID to be allocated. Corresponds to
      * AudioManager.AUDIO_SESSION_ID_GENERATE and
      * AudioSystem.AUDIO_SESSION_ALLOCATE.
      */
     ALLOCATE = 0,
-    /*
+    /**
      * For use with AudioRecord::start(), this indicates no trigger session.
      * It is also used with output tracks and patch tracks, which never have a
      * session.
@@ -181,7 +181,7 @@
     NONE = 0
 };
 
-/*
+/**
  * Audio format  is a 32-bit word that consists of:
  *   main format field (upper 8 bits)
  *   sub format field (lower 24 bits).
@@ -196,13 +196,13 @@
 enum AudioFormat : uint32_t {
     INVALID             = 0xFFFFFFFFUL,
     DEFAULT             = 0,
-    PCM                 = 0x00000000UL, /* DO NOT CHANGE */
+    PCM                 = 0x00000000UL, /** DO NOT CHANGE */
     MP3                 = 0x01000000UL,
     AMR_NB              = 0x02000000UL,
     AMR_WB              = 0x03000000UL,
     AAC                 = 0x04000000UL,
-    HE_AAC_V1           = 0x05000000UL, /* Deprecated, Use AAC_HE_V1*/
-    HE_AAC_V2           = 0x06000000UL, /* Deprecated, Use AAC_HE_V2*/
+    HE_AAC_V1           = 0x05000000UL, /** Deprecated, Use AAC_HE_V1 */
+    HE_AAC_V2           = 0x06000000UL, /** Deprecated, Use AAC_HE_V2 */
     VORBIS              = 0x07000000UL,
     OPUS                = 0x08000000UL,
     AC3                 = 0x09000000UL,
@@ -232,10 +232,10 @@
     APTX_HD             = 0x21000000UL,
     AC4                 = 0x22000000UL,
     LDAC                = 0x23000000UL,
-    MAIN_MASK           = 0xFF000000UL, /* Deprecated */
+    MAIN_MASK           = 0xFF000000UL, /** Deprecated */
     SUB_MASK            = 0x00FFFFFFUL,
 
-    /* Subformats */
+    /** Subformats */
     PCM_SUB_16_BIT        = 0x1, // PCM signed 16 bits
     PCM_SUB_8_BIT         = 0x2, // PCM unsigned 8 bits
     PCM_SUB_32_BIT        = 0x3, // PCM signed .31 fixed point
@@ -260,10 +260,10 @@
 
     VORBIS_SUB_NONE       = 0x0,
 
-    /* Aliases */
-    /* note != AudioFormat.ENCODING_PCM_16BIT */
+    /** Aliases */
+    /** note != AudioFormat.ENCODING_PCM_16BIT */
     PCM_16_BIT          = (PCM | PCM_SUB_16_BIT),
-    /* note != AudioFormat.ENCODING_PCM_8BIT */
+    /** note != AudioFormat.ENCODING_PCM_8BIT */
     PCM_8_BIT           = (PCM | PCM_SUB_8_BIT),
     PCM_32_BIT          = (PCM | PCM_SUB_32_BIT),
     PCM_8_24_BIT        = (PCM | PCM_SUB_8_24_BIT),
@@ -291,7 +291,7 @@
     AAC_ADTS_ELD        = (AAC_ADTS | AAC_SUB_ELD)
 };
 
-/*
+/**
  * Usage of these values highlights places in the code that use 2- or 8- channel
  * assumptions.
  */
@@ -301,7 +301,7 @@
     FCC_8 = 8  // This is typically due to audio mixer and resampler limitations
 };
 
-/*
+/**
  * A channel mask per se only defines the presence or absence of a channel, not
  * the order.  See AUDIO_INTERLEAVE_* for the platform convention of order.
  *
@@ -335,21 +335,21 @@
  */
 @export(name="", value_prefix="AUDIO_CHANNEL_")
 enum AudioChannelMask : uint32_t {
-    REPRESENTATION_POSITION = 0, /* must be 0 for compatibility */
-    /* 1 is reserved for future use */
+    REPRESENTATION_POSITION = 0, /** must be 0 for compatibility */
+    /** 1 is reserved for future use */
     REPRESENTATION_INDEX    = 2,
-    /* 3 is reserved for future use */
+    /** 3 is reserved for future use */
 
-    /* These can be a complete value of AudioChannelMask */
+    /** These can be a complete value of AudioChannelMask */
     NONE                      = 0x0,
     INVALID                   = 0xC0000000,
 
-   /*
+   /**
     * These can be the bits portion of an AudioChannelMask
     * with representation REPRESENTATION_POSITION.
     */
 
-    /* output channels */
+    /** output channels */
     OUT_FRONT_LEFT            = 0x1,
     OUT_FRONT_RIGHT           = 0x2,
     OUT_FRONT_CENTER          = 0x4,
@@ -375,7 +375,7 @@
     OUT_QUAD     = (OUT_FRONT_LEFT | OUT_FRONT_RIGHT |
             OUT_BACK_LEFT | OUT_BACK_RIGHT),
     OUT_QUAD_BACK = OUT_QUAD,
-    /* like OUT_QUAD_BACK with *_SIDE_* instead of *_BACK_* */
+    /** like OUT_QUAD_BACK with *_SIDE_* instead of *_BACK_* */
     OUT_QUAD_SIDE = (OUT_FRONT_LEFT | OUT_FRONT_RIGHT |
             OUT_SIDE_LEFT | OUT_SIDE_RIGHT),
     OUT_SURROUND = (OUT_FRONT_LEFT | OUT_FRONT_RIGHT |
@@ -385,7 +385,7 @@
             OUT_FRONT_CENTER | OUT_LOW_FREQUENCY |
             OUT_BACK_LEFT | OUT_BACK_RIGHT),
     OUT_5POINT1_BACK = OUT_5POINT1,
-    /* like OUT_5POINT1_BACK with *_SIDE_* instead of *_BACK_* */
+    /** like OUT_5POINT1_BACK with *_SIDE_* instead of *_BACK_* */
     OUT_5POINT1_SIDE = (OUT_FRONT_LEFT | OUT_FRONT_RIGHT |
             OUT_FRONT_CENTER | OUT_LOW_FREQUENCY |
             OUT_SIDE_LEFT | OUT_SIDE_RIGHT),
@@ -393,7 +393,7 @@
             OUT_FRONT_CENTER | OUT_LOW_FREQUENCY |
             OUT_BACK_LEFT | OUT_BACK_RIGHT |
             OUT_BACK_CENTER),
-    /* matches the correct AudioFormat.CHANNEL_OUT_7POINT1_SURROUND */
+    /** matches the correct AudioFormat.CHANNEL_OUT_7POINT1_SURROUND */
     OUT_7POINT1  = (OUT_FRONT_LEFT | OUT_FRONT_RIGHT |
             OUT_FRONT_CENTER | OUT_LOW_FREQUENCY |
             OUT_BACK_LEFT | OUT_BACK_RIGHT |
@@ -408,9 +408,9 @@
             OUT_TOP_FRONT_LEFT | OUT_TOP_FRONT_CENTER | OUT_TOP_FRONT_RIGHT |
             OUT_TOP_BACK_LEFT | OUT_TOP_BACK_CENTER | OUT_TOP_BACK_RIGHT),
 
-    /* These are bits only, not complete values */
+    /** These are bits only, not complete values */
 
-    /* input channels */
+    /** input channels */
     IN_LEFT            = 0x4,
     IN_RIGHT           = 0x8,
     IN_FRONT           = 0x10,
@@ -456,7 +456,7 @@
 };
 
 
-/*
+/**
  * Expresses the convention when stereo audio samples are stored interleaved
  * in an array.  This should improve readability by allowing code to use
  * symbolic indices instead of hard-coded [0] and [1].
@@ -472,7 +472,7 @@
     RIGHT  = 1,
 };
 
-/*
+/**
  * Major modes for a mobile device. The current mode setting affects audio
  * routing.
  */
@@ -492,10 +492,10 @@
 @export(name="", value_prefix="AUDIO_DEVICE_")
 enum AudioDevice : uint32_t {
     NONE                          = 0x0,
-    /* reserved bits */
+    /** reserved bits */
     BIT_IN                        = 0x80000000,
     BIT_DEFAULT                   = 0x40000000,
-    /* output devices */
+    /** output devices */
     OUT_EARPIECE                  = 0x1,
     OUT_SPEAKER                   = 0x2,
     OUT_WIRED_HEADSET             = 0x4,
@@ -508,30 +508,30 @@
     OUT_BLUETOOTH_A2DP_SPEAKER    = 0x200,
     OUT_AUX_DIGITAL               = 0x400,
     OUT_HDMI                      = OUT_AUX_DIGITAL,
-    /* uses an analog connection (multiplexed over the USB pins for instance) */
+    /** uses an analog connection (multiplexed over the USB pins for instance) */
     OUT_ANLG_DOCK_HEADSET         = 0x800,
     OUT_DGTL_DOCK_HEADSET         = 0x1000,
-    /* USB accessory mode: Android device is USB device and dock is USB host */
+    /** USB accessory mode: Android device is USB device and dock is USB host */
     OUT_USB_ACCESSORY             = 0x2000,
-    /* USB host mode: Android device is USB host and dock is USB device */
+    /** USB host mode: Android device is USB host and dock is USB device */
     OUT_USB_DEVICE                = 0x4000,
     OUT_REMOTE_SUBMIX             = 0x8000,
-    /* Telephony voice TX path */
+    /** Telephony voice TX path */
     OUT_TELEPHONY_TX              = 0x10000,
-    /* Analog jack with line impedance detected */
+    /** Analog jack with line impedance detected */
     OUT_LINE                      = 0x20000,
-    /* HDMI Audio Return Channel */
+    /** HDMI Audio Return Channel */
     OUT_HDMI_ARC                  = 0x40000,
-    /* S/PDIF out */
+    /** S/PDIF out */
     OUT_SPDIF                     = 0x80000,
-    /* FM transmitter out */
+    /** FM transmitter out */
     OUT_FM                        = 0x100000,
-    /* Line out for av devices */
+    /** Line out for av devices */
     OUT_AUX_LINE                  = 0x200000,
-    /* limited-output speaker device for acoustic safety */
+    /** limited-output speaker device for acoustic safety */
     OUT_SPEAKER_SAFE              = 0x400000,
     OUT_IP                        = 0x800000,
-    /* audio bus implemented by the audio system (e.g an MOST stereo channel) */
+    /** audio bus implemented by the audio system (e.g an MOST stereo channel) */
     OUT_BUS                       = 0x1000000,
     OUT_PROXY                     = 0x2000000,
     OUT_USB_HEADSET               = 0x4000000,
@@ -571,7 +571,7 @@
             OUT_BLUETOOTH_SCO_HEADSET |
             OUT_BLUETOOTH_SCO_CARKIT),
     OUT_ALL_USB  = (OUT_USB_ACCESSORY | OUT_USB_DEVICE | OUT_USB_HEADSET),
-    /* input devices */
+    /** input devices */
     IN_COMMUNICATION         = BIT_IN | 0x1,
     IN_AMBIENT               = BIT_IN | 0x2,
     IN_BUILTIN_MIC           = BIT_IN | 0x4,
@@ -579,7 +579,7 @@
     IN_WIRED_HEADSET         = BIT_IN | 0x10,
     IN_AUX_DIGITAL           = BIT_IN | 0x20,
     IN_HDMI                  = IN_AUX_DIGITAL,
-    /* Telephony voice RX path */
+    /** Telephony voice RX path */
     IN_VOICE_CALL            = BIT_IN | 0x40,
     IN_TELEPHONY_RX          = IN_VOICE_CALL,
     IN_BACK_MIC              = BIT_IN | 0x80,
@@ -588,18 +588,18 @@
     IN_DGTL_DOCK_HEADSET     = BIT_IN | 0x400,
     IN_USB_ACCESSORY         = BIT_IN | 0x800,
     IN_USB_DEVICE            = BIT_IN | 0x1000,
-    /* FM tuner input */
+    /** FM tuner input */
     IN_FM_TUNER              = BIT_IN | 0x2000,
-    /* TV tuner input */
+    /** TV tuner input */
     IN_TV_TUNER              = BIT_IN | 0x4000,
-    /* Analog jack with line impedance detected */
+    /** Analog jack with line impedance detected */
     IN_LINE                  = BIT_IN | 0x8000,
-    /* S/PDIF in */
+    /** S/PDIF in */
     IN_SPDIF                 = BIT_IN | 0x10000,
     IN_BLUETOOTH_A2DP        = BIT_IN | 0x20000,
     IN_LOOPBACK              = BIT_IN | 0x40000,
     IN_IP                    = BIT_IN | 0x80000,
-    /* audio bus implemented by the audio system (e.g an MOST stereo channel) */
+    /** audio bus implemented by the audio system (e.g an MOST stereo channel) */
     IN_BUS                   = BIT_IN | 0x100000,
     IN_PROXY                 = BIT_IN | 0x1000000,
     IN_USB_HEADSET           = BIT_IN | 0x2000000,
@@ -633,7 +633,7 @@
     IN_ALL_USB  = (IN_USB_ACCESSORY | IN_USB_DEVICE | IN_USB_HEADSET),
 };
 
-/*
+/**
  * The audio output flags serve two purposes:
  *
  *  - when an AudioTrack is created they indicate a "wish" to be connected to an
@@ -674,7 +674,7 @@
     VOIP_RX = 0x8000,    // preferred output for VoIP calls.
 };
 
-/*
+/**
  * The audio input flags are analogous to audio output flags.
  * Currently they are used only when an AudioRecord is created,
  * to indicate a preference to be connected to an input stream with
@@ -717,7 +717,7 @@
     MAX                                = CNT - 1,
 };
 
-/*
+/**
  * Additional information about the stream passed to hardware decoders.
  */
 struct AudioOffloadInfo {
@@ -734,7 +734,7 @@
     AudioUsage usage;
 };
 
-/*
+/**
  * Commonly used audio stream configuration parameters.
  */
 struct AudioConfig {
@@ -746,13 +746,13 @@
 };
 
 
-/*
+/**
  *
  *  Volume control
  *
  */
 
-/*
+/**
  * Type of gain control exposed by an audio port.
  */
 @export(name="", value_prefix="AUDIO_GAIN_MODE_")
@@ -762,7 +762,7 @@
     RAMP = 0x4      // supports gain ramps
 };
 
-/*
+/**
  * An audio_gain struct is a representation of a gain stage.
  * A gain stage is always attached to an audio port.
  */
@@ -777,7 +777,7 @@
     uint32_t maxRampMs;   // maximum ramp duration in ms
 };
 
-/*
+/**
  * The gain configuration structure is used to get or set the gain values of a
  * given port.
  */
@@ -785,7 +785,7 @@
     int32_t index;  // index of the corresponding AudioGain in AudioPort.gains
     AudioGainMode mode;
     AudioChannelMask channelMask;  // channels which gain value follows
-    /*
+    /**
      * 4 = sizeof(AudioChannelMask),
      * 8 is not "FCC_8", so it won't need to be changed for > 8 channels.
      * Gain values in millibels for each channel ordered from LSb to MSb in
@@ -797,13 +797,13 @@
 };
 
 
-/*
+/**
  *
  *  Routing control
  *
  */
 
-/*
+/**
  * Types defined here are used to describe an audio source or sink at internal
  * framework interfaces (audio policy, patch panel) or at the audio HAL.
  * Sink and sources are grouped in a concept of “audio port” representing an
@@ -811,7 +811,7 @@
  * the interface.
  */
 
-/* Audio port role: either source or sink */
+/** Audio port role: either source or sink */
 @export(name="audio_port_role_t", value_prefix="AUDIO_PORT_ROLE_")
 enum AudioPortRole : int32_t {
     NONE,
@@ -819,7 +819,7 @@
     SINK,
 };
 
-/*
+/**
  * Audio port type indicates if it is a session (e.g AudioTrack), a mix (e.g
  * PlaybackThread output) or a physical device (e.g OUT_SPEAKER)
  */
@@ -831,7 +831,7 @@
     SESSION,
 };
 
-/*
+/**
  * Extension for audio port configuration structure when the audio port is a
  * hardware device.
  */
@@ -841,7 +841,7 @@
     uint8_t[32] address;         // device address. "" if N/A
 };
 
-/*
+/**
  * Extension for audio port configuration structure when the audio port is an
  * audio session.
  */
@@ -849,7 +849,7 @@
     AudioSession session;
 };
 
-/*
+/**
  * Flags indicating which fields are to be considered in AudioPortConfig.
  */
 @export(name="", value_prefix="AUDIO_PORT_CONFIG_")
@@ -861,7 +861,7 @@
     ALL = SAMPLE_RATE | CHANNEL_MASK | FORMAT | GAIN
 };
 
-/*
+/**
  * Audio port configuration structure used to specify a particular configuration
  * of an audio port.
  */
@@ -888,7 +888,7 @@
     } ext;
 };
 
-/*
+/**
  * Extension for audio port structure when the audio port is a hardware device.
  */
 struct AudioPortDeviceExt {
@@ -897,7 +897,7 @@
     uint8_t[32] address;
 };
 
-/*
+/**
  * Latency class of the audio mix.
  */
 @export(name="audio_mix_latency_class_t", value_prefix="AUDIO_LATENCY_")
@@ -912,7 +912,7 @@
     AudioMixLatencyClass latencyClass;
 };
 
-/*
+/**
  * Extension for audio port structure when the audio port is an audio session.
  */
 struct AudioPortSessionExt {
diff --git a/audio/effect/2.0/IAcousticEchoCancelerEffect.hal b/audio/effect/2.0/IAcousticEchoCancelerEffect.hal
index 9e2e0c3..b5f94a5 100644
--- a/audio/effect/2.0/IAcousticEchoCancelerEffect.hal
+++ b/audio/effect/2.0/IAcousticEchoCancelerEffect.hal
@@ -20,12 +20,12 @@
 import IEffect;
 
 interface IAcousticEchoCancelerEffect extends IEffect {
-    /*
+    /**
      * Sets echo delay value in milliseconds.
      */
     setEchoDelay(uint32_t echoDelayMs) generates (Result retval);
 
-    /*
+    /**
      * Gets echo delay value in milliseconds.
      */
     getEchoDelay() generates (Result retval, uint32_t echoDelayMs);
diff --git a/audio/effect/2.0/IAutomaticGainControlEffect.hal b/audio/effect/2.0/IAutomaticGainControlEffect.hal
index a02002d..b8ca7e3 100644
--- a/audio/effect/2.0/IAutomaticGainControlEffect.hal
+++ b/audio/effect/2.0/IAutomaticGainControlEffect.hal
@@ -20,32 +20,32 @@
 import IEffect;
 
 interface IAutomaticGainControlEffect extends IEffect {
-    /*
+    /**
      * Sets target level in millibels.
      */
     setTargetLevel(int16_t targetLevelMb) generates (Result retval);
 
-    /*
+    /**
      * Gets target level.
      */
     getTargetLevel() generates (Result retval, int16_t targetLevelMb);
 
-    /*
+    /**
      * Sets gain in the compression range in millibels.
      */
     setCompGain(int16_t compGainMb) generates (Result retval);
 
-    /*
+    /**
      * Gets gain in the compression range.
      */
     getCompGain() generates (Result retval, int16_t compGainMb);
 
-    /*
+    /**
      * Enables or disables limiter.
      */
     setLimiterEnabled(bool enabled) generates (Result retval);
 
-    /*
+    /**
      * Returns whether limiter is enabled.
      */
     isLimiterEnabled() generates (Result retval, bool enabled);
@@ -56,12 +56,12 @@
         bool limiterEnabled;
     };
 
-    /*
+    /**
      * Sets all properties at once.
      */
     setAllProperties(AllProperties properties) generates (Result retval);
 
-    /*
+    /**
      * Gets all properties at once.
      */
     getAllProperties() generates (Result retval, AllProperties properties);
diff --git a/audio/effect/2.0/IBassBoostEffect.hal b/audio/effect/2.0/IBassBoostEffect.hal
index bcf7b7d..db6a297 100644
--- a/audio/effect/2.0/IBassBoostEffect.hal
+++ b/audio/effect/2.0/IBassBoostEffect.hal
@@ -20,7 +20,7 @@
 import IEffect;
 
 interface IBassBoostEffect extends IEffect {
-    /*
+    /**
      * Returns whether setting bass boost strength is supported.
      */
     isStrengthSupported() generates (Result retval, bool strengthSupported);
@@ -30,7 +30,7 @@
         MAX = 1000
     };
 
-    /*
+    /**
      * Sets bass boost strength.
      *
      * @param strength strength of the effect. The valid range for strength
@@ -41,7 +41,7 @@
      */
     setStrength(uint16_t strength) generates (Result retval);
 
-    /*
+    /**
      * Gets virtualization strength.
      */
     getStrength() generates (Result retval, uint16_t strength);
diff --git a/audio/effect/2.0/IEffect.hal b/audio/effect/2.0/IEffect.hal
index d254e8c..332e2df 100644
--- a/audio/effect/2.0/IEffect.hal
+++ b/audio/effect/2.0/IEffect.hal
@@ -20,7 +20,7 @@
 import IEffectBufferProviderCallback;
 
 interface IEffect {
-    /*
+    /**
      * Initialize effect engine--all configurations return to default.
      *
      * @return retval operation completion status.
@@ -29,7 +29,7 @@
     @callflow(next={"*"})
     init() generates (Result retval);
 
-    /*
+    /**
      * Apply new audio parameters configurations for input and output buffers.
      * The provider callbacks may be empty, but in this case the buffer
      * must be provided in the EffectConfig structure.
@@ -45,7 +45,7 @@
             IEffectBufferProviderCallback outputBufferProvider)
             generates (Result retval);
 
-    /*
+    /**
      * Reset the effect engine. Keep configuration but resets state and buffer
      * content.
      *
@@ -54,7 +54,7 @@
     @callflow(next={"*"})
     reset() generates (Result retval);
 
-    /*
+    /**
      * Enable processing.
      *
      * @return retval operation completion status.
@@ -62,7 +62,7 @@
     @callflow(next={"prepareForProcessing"})
     enable() generates (Result retval);
 
-    /*
+    /**
      * Disable processing.
      *
      * @return retval operation completion status.
@@ -70,7 +70,7 @@
     @callflow(next={"close"})
     disable() generates (Result retval);
 
-    /*
+    /**
      * Set the rendering device the audio output path is connected to.  The
      * effect implementation must set EFFECT_FLAG_DEVICE_IND flag in its
      * descriptor to receive this command when the device changes.
@@ -84,7 +84,7 @@
     @callflow(next={"*"})
     setDevice(AudioDevice device) generates (Result retval);
 
-    /*
+    /**
      * Set and get volume. Used by audio framework to delegate volume control to
      * effect engine. The effect implementation must set EFFECT_FLAG_VOLUME_CTRL
      * flag in its descriptor to receive this command. The effect engine must
@@ -103,7 +103,7 @@
     setAndGetVolume(vec<uint32_t> volumes)
             generates (Result retval, vec<uint32_t> result);
 
-    /*
+    /**
      * Notify the effect of the volume change. The effect implementation must
      * set EFFECT_FLAG_VOLUME_IND flag in its descriptor to receive this
      * command.
@@ -116,7 +116,7 @@
     volumeChangeNotification(vec<uint32_t> volumes)
             generates (Result retval);
 
-    /*
+    /**
      * Set the audio mode. The effect implementation must set
      * EFFECT_FLAG_AUDIO_MODE_IND flag in its descriptor to receive this command
      * when the audio mode changes.
@@ -127,7 +127,7 @@
     @callflow(next={"*"})
     setAudioMode(AudioMode mode) generates (Result retval);
 
-    /*
+    /**
      * Apply new audio parameters configurations for input and output buffers of
      * reverse stream.  An example of reverse stream is the echo reference
      * supplied to an Acoustic Echo Canceler.
@@ -143,7 +143,7 @@
             IEffectBufferProviderCallback outputBufferProvider)
             generates (Result retval);
 
-    /*
+    /**
      * Set the capture device the audio input path is connected to. The effect
      * implementation must set EFFECT_FLAG_DEVICE_IND flag in its descriptor to
      * receive this command when the device changes.
@@ -157,7 +157,7 @@
     @callflow(next={"*"})
     setInputDevice(AudioDevice device) generates (Result retval);
 
-    /*
+    /**
      * Read audio parameters configurations for input and output buffers.
      *
      * @return retval operation completion status.
@@ -166,7 +166,7 @@
     @callflow(next={"*"})
     getConfig() generates (Result retval, EffectConfig config);
 
-    /*
+    /**
      * Read audio parameters configurations for input and output buffers of
      * reverse stream.
      *
@@ -176,7 +176,7 @@
     @callflow(next={"*"})
     getConfigReverse() generates (Result retval, EffectConfig config);
 
-    /*
+    /**
      * Queries for supported combinations of main and auxiliary channels
      * (e.g. for a multi-microphone noise suppressor).
      *
@@ -190,7 +190,7 @@
     getSupportedAuxChannelsConfigs(uint32_t maxConfigs)
             generates (Result retval, vec<EffectAuxChannelsConfig> result);
 
-    /*
+    /**
      * Retrieves the current configuration of main and auxiliary channels.
      *
      * @return retval absence of the feature support is indicated using
@@ -201,7 +201,7 @@
     getAuxChannelsConfig()
             generates (Result retval, EffectAuxChannelsConfig result);
 
-    /*
+    /**
      * Sets the current configuration of main and auxiliary channels.
      *
      * @return retval operation completion status; absence of the feature
@@ -211,7 +211,7 @@
     setAuxChannelsConfig(EffectAuxChannelsConfig config)
             generates (Result retval);
 
-    /*
+    /**
      * Set the audio source the capture path is configured for (Camcorder, voice
      * recognition...).
      *
@@ -224,7 +224,7 @@
     @callflow(next={"*"})
     setAudioSource(AudioSource source) generates (Result retval);
 
-    /*
+    /**
      * This command indicates if the playback thread the effect is attached to
      * is offloaded or not, and updates the I/O handle of the playback thread
      * the effect is attached to.
@@ -235,7 +235,7 @@
     @callflow(next={"*"})
     offload(EffectOffloadParameter param) generates (Result retval);
 
-    /*
+    /**
      * Returns the effect descriptor.
      *
      * @return retval operation completion status.
@@ -244,7 +244,7 @@
     @callflow(next={"*"})
     getDescriptor() generates (Result retval, EffectDescriptor descriptor);
 
-    /*
+    /**
      * Set up required transports for passing audio buffers to the effect.
      *
      * The transport consists of shared memory and a message queue for reporting
@@ -270,7 +270,7 @@
     @callflow(next={"setProcessBuffers"})
     prepareForProcessing() generates (Result retval, fmq_sync<Result> statusMQ);
 
-    /*
+    /**
      * Set up input and output buffers for processing audio data. The effect
      * may modify both the input and the output buffer during the operation.
      * Buffers may be set multiple times during effect lifetime.
@@ -289,7 +289,7 @@
     setProcessBuffers(AudioBuffer inBuffer, AudioBuffer outBuffer) generates (
             Result retval);
 
-    /*
+    /**
      * Execute a vendor specific command on the effect. The command code
      * and data, as well as result data are not interpreted by Android
      * Framework and are passed as-is between the application and the effect.
@@ -310,7 +310,7 @@
     command(uint32_t commandId, vec<uint8_t> data, uint32_t resultMaxSize)
             generates (int32_t status, vec<uint8_t> result);
 
-    /*
+    /**
      * Set a vendor-specific parameter and apply it immediately. The parameter
      * code and data are not interpreted by Android Framework and are passed
      * as-is between the application and the effect.
@@ -331,7 +331,7 @@
     setParameter(vec<uint8_t> parameter, vec<uint8_t> value)
             generates (Result retval);
 
-    /*
+    /**
      * Get a vendor-specific parameter value. The parameter code and returned
      * data are not interpreted by Android Framework and are passed as-is
      * between the application and the effect.
@@ -353,7 +353,7 @@
     getParameter(vec<uint8_t> parameter, uint32_t valueMaxSize)
             generates (Result retval, vec<uint8_t> value);
 
-    /*
+    /**
      * Get supported configs for a vendor-specific feature. The configs returned
      * are not interpreted by Android Framework and are passed as-is between the
      * application and the effect.
@@ -384,7 +384,7 @@
                     uint32_t configsCount,
                     vec<uint8_t> configsData);
 
-    /*
+    /**
      * Get the current config for a vendor-specific feature. The config returned
      * is not interpreted by Android Framework and is passed as-is between the
      * application and the effect.
@@ -406,7 +406,7 @@
     getCurrentConfigForFeature(uint32_t featureId, uint32_t configSize)
             generates (Result retval, vec<uint8_t> configData);
 
-    /*
+    /**
      * Set the current config for a vendor-specific feature. The config data
      * is not interpreted by Android Framework and is passed as-is between the
      * application and the effect.
@@ -426,7 +426,7 @@
     setCurrentConfigForFeature(uint32_t featureId, vec<uint8_t> configData)
             generates (Result retval);
 
-    /*
+    /**
      * Called by the framework to deinitialize the effect and free up
      * all the currently allocated resources. It is recommended to close
      * the effect on the client side as soon as it is becomes unused.
diff --git a/audio/effect/2.0/IEffectBufferProviderCallback.hal b/audio/effect/2.0/IEffectBufferProviderCallback.hal
index 53f4d6e..6ab33c3 100644
--- a/audio/effect/2.0/IEffectBufferProviderCallback.hal
+++ b/audio/effect/2.0/IEffectBufferProviderCallback.hal
@@ -16,12 +16,12 @@
 
 package android.hardware.audio.effect@2.0;
 
-/*
+/**
  * This callback interface contains functions that can be used by the effect
  * engine 'process' function to exchange input and output audio buffers.
  */
 interface IEffectBufferProviderCallback {
-    /*
+    /**
      * Called to retrieve a buffer where data should read from by 'process'
      * function.
      *
@@ -29,7 +29,7 @@
      */
     getBuffer() generates (AudioBuffer buffer);
 
-    /*
+    /**
      * Called to provide a buffer with the data written by 'process' function.
      *
      * @param buffer audio buffer for processing
diff --git a/audio/effect/2.0/IEffectsFactory.hal b/audio/effect/2.0/IEffectsFactory.hal
index c82b4a2..3d300ec 100644
--- a/audio/effect/2.0/IEffectsFactory.hal
+++ b/audio/effect/2.0/IEffectsFactory.hal
@@ -20,7 +20,7 @@
 import IEffect;
 
 interface IEffectsFactory {
-    /*
+    /**
      * Returns descriptors of different effects in all loaded libraries.
      *
      * @return retval operation completion status.
@@ -28,7 +28,7 @@
      */
     getAllDescriptors() generates(Result retval, vec<EffectDescriptor> result);
 
-    /*
+    /**
      * Returns a descriptor of a particular effect.
      *
      * @return retval operation completion status.
@@ -36,7 +36,7 @@
      */
     getDescriptor(Uuid uid) generates(Result retval, EffectDescriptor result);
 
-    /*
+    /**
      * Creates an effect engine of the specified type.  To release the effect
      * engine, it is necessary to release references to the returned effect
      * object.
@@ -56,7 +56,7 @@
     createEffect(Uuid uid, AudioSession session, AudioIoHandle ioHandle)
         generates (Result retval, IEffect result, uint64_t effectId);
 
-    /*
+    /**
      * Dumps information about effects into the provided file descriptor.
      * This is used for the dumpsys facility.
      *
diff --git a/audio/effect/2.0/IEnvironmentalReverbEffect.hal b/audio/effect/2.0/IEnvironmentalReverbEffect.hal
index d9b1ee6..dca89f9 100644
--- a/audio/effect/2.0/IEnvironmentalReverbEffect.hal
+++ b/audio/effect/2.0/IEnvironmentalReverbEffect.hal
@@ -20,12 +20,12 @@
 import IEffect;
 
 interface IEnvironmentalReverbEffect extends IEffect {
-    /*
+    /**
      * Sets whether the effect should be bypassed.
      */
     setBypass(bool bypass) generates (Result retval);
 
-    /*
+    /**
      * Gets whether the effect should be bypassed.
      */
     getBypass() generates (Result retval, bool bypass);
@@ -53,102 +53,102 @@
         DENSITY_MAX = 1000
     };
 
-    /*
+    /**
      * Sets the room level.
      */
     setRoomLevel(int16_t roomLevel) generates (Result retval);
 
-    /*
+    /**
      * Gets the room level.
      */
     getRoomLevel() generates (Result retval, int16_t roomLevel);
 
-    /*
+    /**
      * Sets the room high frequences level.
      */
     setRoomHfLevel(int16_t roomHfLevel) generates (Result retval);
 
-    /*
+    /**
      * Gets the room high frequences level.
      */
     getRoomHfLevel() generates (Result retval, int16_t roomHfLevel);
 
-    /*
+    /**
      * Sets the room decay time.
      */
     setDecayTime(uint32_t decayTime) generates (Result retval);
 
-    /*
+    /**
      * Gets the room decay time.
      */
     getDecayTime() generates (Result retval, uint32_t decayTime);
 
-    /*
+    /**
      * Sets the ratio of high frequences decay.
      */
     setDecayHfRatio(int16_t decayHfRatio) generates (Result retval);
 
-    /*
+    /**
      * Gets the ratio of high frequences decay.
      */
     getDecayHfRatio() generates (Result retval, int16_t decayHfRatio);
 
-    /*
+    /**
      * Sets the level of reflections in the room.
      */
     setReflectionsLevel(int16_t reflectionsLevel) generates (Result retval);
 
-    /*
+    /**
      * Gets the level of reflections in the room.
      */
     getReflectionsLevel() generates (Result retval, int16_t reflectionsLevel);
 
-    /*
+    /**
      * Sets the reflections delay in the room.
      */
     setReflectionsDelay(uint32_t reflectionsDelay) generates (Result retval);
 
-    /*
+    /**
      * Gets the reflections delay in the room.
      */
     getReflectionsDelay() generates (Result retval, uint32_t reflectionsDelay);
 
-    /*
+    /**
      * Sets the reverb level of the room.
      */
     setReverbLevel(int16_t reverbLevel) generates (Result retval);
 
-    /*
+    /**
      * Gets the reverb level of the room.
      */
     getReverbLevel() generates (Result retval, int16_t reverbLevel);
 
-    /*
+    /**
      * Sets the reverb delay of the room.
      */
     setReverbDelay(uint32_t reverDelay) generates (Result retval);
 
-    /*
+    /**
      * Gets the reverb delay of the room.
      */
     getReverbDelay() generates (Result retval, uint32_t reverbDelay);
 
-    /*
+    /**
      * Sets room diffusion.
      */
     setDiffusion(int16_t diffusion) generates (Result retval);
 
-    /*
+    /**
      * Gets room diffusion.
      */
     getDiffusion() generates (Result retval, int16_t diffusion);
 
-    /*
+    /**
      * Sets room wall density.
      */
     setDensity(int16_t density) generates (Result retval);
 
-    /*
+    /**
      * Gets room wall density.
      */
     getDensity() generates (Result retval, int16_t density);
@@ -166,12 +166,12 @@
         int16_t  density;           // in permilles,    range 0 to 1000
     };
 
-    /*
+    /**
      * Sets all properties at once.
      */
     setAllProperties(AllProperties properties) generates (Result retval);
 
-    /*
+    /**
      * Gets all properties at once.
      */
     getAllProperties() generates (Result retval, AllProperties properties);
diff --git a/audio/effect/2.0/IEqualizerEffect.hal b/audio/effect/2.0/IEqualizerEffect.hal
index b8fa177..1528e0d 100644
--- a/audio/effect/2.0/IEqualizerEffect.hal
+++ b/audio/effect/2.0/IEqualizerEffect.hal
@@ -20,58 +20,58 @@
 import IEffect;
 
 interface IEqualizerEffect extends IEffect {
-    /*
+    /**
      * Gets the number of frequency bands that the equalizer supports.
      */
     getNumBands() generates (Result retval, uint16_t numBands);
 
-    /*
+    /**
      * Returns the minimum and maximum band levels supported.
      */
     getLevelRange()
             generates (Result retval, int16_t minLevel, int16_t maxLevel);
 
-    /*
+    /**
      * Sets the gain for the given equalizer band.
      */
     setBandLevel(uint16_t band, int16_t level) generates (Result retval);
 
-    /*
+    /**
      * Gets the gain for the given equalizer band.
      */
     getBandLevel(uint16_t band) generates (Result retval, int16_t level);
 
-    /*
+    /**
      * Gets the center frequency of the given band, in milliHertz.
      */
     getBandCenterFrequency(uint16_t band)
             generates (Result retval, uint32_t centerFreqmHz);
 
-    /*
+    /**
      * Gets the frequency range of the given frequency band, in milliHertz.
      */
     getBandFrequencyRange(uint16_t band)
             generates (Result retval, uint32_t minFreqmHz, uint32_t maxFreqmHz);
 
-    /*
+    /**
      * Gets the band that has the most effect on the given frequency
      * in milliHertz.
      */
     getBandForFrequency(uint32_t freqmHz)
             generates (Result retval, uint16_t band);
 
-    /*
+    /**
      * Gets the names of all presets the equalizer supports.
      */
     getPresetNames() generates (Result retval, vec<string> names);
 
-    /*
+    /**
      * Sets the current preset using the index of the preset in the names
      * vector returned via 'getPresetNames'.
      */
     setCurrentPreset(uint16_t preset) generates (Result retval);
 
-    /*
+    /**
      * Gets the current preset.
      */
     getCurrentPreset() generates (Result retval, uint16_t preset);
@@ -81,12 +81,12 @@
         vec<int16_t> bandLevels;
     };
 
-    /*
+    /**
      * Sets all properties at once.
      */
     setAllProperties(AllProperties properties) generates (Result retval);
 
-    /*
+    /**
      * Gets all properties at once.
      */
     getAllProperties() generates (Result retval, AllProperties properties);
diff --git a/audio/effect/2.0/ILoudnessEnhancerEffect.hal b/audio/effect/2.0/ILoudnessEnhancerEffect.hal
index 3e1ee4e..adeb1c8 100644
--- a/audio/effect/2.0/ILoudnessEnhancerEffect.hal
+++ b/audio/effect/2.0/ILoudnessEnhancerEffect.hal
@@ -20,12 +20,12 @@
 import IEffect;
 
 interface ILoudnessEnhancerEffect extends IEffect {
-    /*
+    /**
      * Sets target gain expressed in millibels.
      */
     setTargetGain(int32_t targetGainMb) generates (Result retval);
 
-    /*
+    /**
      * Gets target gain expressed in millibels.
      */
     getTargetGain() generates (Result retval, int32_t targetGainMb);
diff --git a/audio/effect/2.0/INoiseSuppressionEffect.hal b/audio/effect/2.0/INoiseSuppressionEffect.hal
index ae2bfb5..6617a1e 100644
--- a/audio/effect/2.0/INoiseSuppressionEffect.hal
+++ b/audio/effect/2.0/INoiseSuppressionEffect.hal
@@ -26,12 +26,12 @@
         HIGH
     };
 
-    /*
+    /**
      * Sets suppression level.
      */
     setSuppressionLevel(Level level) generates (Result retval);
 
-    /*
+    /**
      * Gets suppression level.
      */
     getSuppressionLevel() generates (Result retval, Level level);
@@ -41,12 +41,12 @@
         MULTI_CHANNEL
     };
 
-    /*
+    /**
      * Set suppression type.
      */
     setSuppressionType(Type type) generates (Result retval);
 
-    /*
+    /**
      * Get suppression type.
      */
     getSuppressionType() generates (Result retval, Type type);
@@ -56,12 +56,12 @@
         Type type;
     };
 
-    /*
+    /**
      * Sets all properties at once.
      */
     setAllProperties(AllProperties properties) generates (Result retval);
 
-    /*
+    /**
      * Gets all properties at once.
      */
     getAllProperties() generates (Result retval, AllProperties properties);
diff --git a/audio/effect/2.0/IVirtualizerEffect.hal b/audio/effect/2.0/IVirtualizerEffect.hal
index 2b7116c..49b49a0 100644
--- a/audio/effect/2.0/IVirtualizerEffect.hal
+++ b/audio/effect/2.0/IVirtualizerEffect.hal
@@ -20,7 +20,7 @@
 import IEffect;
 
 interface IVirtualizerEffect extends IEffect {
-    /*
+    /**
      * Returns whether setting virtualization strength is supported.
      */
     isStrengthSupported() generates (bool strengthSupported);
@@ -30,7 +30,7 @@
         MAX = 1000
     };
 
-    /*
+    /**
      * Sets virtualization strength.
      *
      * @param strength strength of the effect. The valid range for strength
@@ -41,7 +41,7 @@
      */
     setStrength(uint16_t strength) generates (Result retval);
 
-    /*
+    /**
      * Gets virtualization strength.
      */
     getStrength() generates (Result retval, uint16_t strength);
@@ -56,19 +56,19 @@
         int16_t elevation; // 0 is the horizontal plane
                            // +90 is above the listener, -90 is below
     };
-    /*
+    /**
      * Retrieves virtual speaker angles for the given channel mask on the
      * specified device.
      */
     getVirtualSpeakerAngles(AudioChannelMask mask, AudioDevice device)
             generates (Result retval, vec<SpeakerAngle> speakerAngles);
 
-    /*
+    /**
      * Forces the virtualizer effect for the given output device.
      */
     forceVirtualizationMode(AudioDevice device) generates (Result retval);
 
-    /*
+    /**
      * Returns audio device reflecting the current virtualization mode,
      * AUDIO_DEVICE_NONE when not virtualizing.
      */
diff --git a/audio/effect/2.0/IVisualizerEffect.hal b/audio/effect/2.0/IVisualizerEffect.hal
index 79dc9ee..fd3edbd 100644
--- a/audio/effect/2.0/IVisualizerEffect.hal
+++ b/audio/effect/2.0/IVisualizerEffect.hal
@@ -25,12 +25,12 @@
         MIN = 128    // minimum capture size in samples
     };
 
-    /*
+    /**
      * Sets the number PCM samples in the capture.
      */
     setCaptureSize(uint16_t captureSize) generates (Result retval);
 
-    /*
+    /**
      * Gets the number PCM samples in the capture.
      */
     getCaptureSize() generates (Result retval, uint16_t captureSize);
@@ -42,22 +42,22 @@
         AS_PLAYED = 1
     };
 
-    /*
+    /**
      * Specifies the way the captured data is scaled.
      */
     setScalingMode(ScalingMode scalingMode) generates (Result retval);
 
-    /*
+    /**
      * Retrieves the way the captured data is scaled.
      */
     getScalingMode() generates (Result retval, ScalingMode scalingMode);
 
-    /*
+    /**
      * Informs the visualizer about the downstream latency.
      */
     setLatency(uint32_t latencyMs) generates (Result retval);
 
-    /*
+    /**
      * Gets the downstream latency.
      */
     getLatency() generates (Result retval, uint32_t latencyMs);
@@ -69,19 +69,19 @@
         PEAK_RMS = 0x1
     };
 
-    /*
+    /**
      * Specifies which measurements are to be made.
      */
     setMeasurementMode(MeasurementMode measurementMode)
             generates (Result retval);
 
-    /*
+    /**
      * Retrieves which measurements are to be made.
      */
     getMeasurementMode() generates (
             Result retval, MeasurementMode measurementMode);
 
-    /*
+    /**
      * Retrieves the latest PCM snapshot captured by the visualizer engine.  The
      * number of samples to capture is specified by 'setCaptureSize' parameter.
      *
@@ -99,7 +99,7 @@
             } peakAndRms;
         } value;
     };
-    /*
+    /**
      * Retrieves the lastest measurements. The measurements to be made
      * are specified by 'setMeasurementMode' parameter.
      *
diff --git a/audio/effect/2.0/types.hal b/audio/effect/2.0/types.hal
index 0626ec5..2c5e4ef 100644
--- a/audio/effect/2.0/types.hal
+++ b/audio/effect/2.0/types.hal
@@ -27,7 +27,7 @@
     RESULT_TOO_BIG
 };
 
-/*
+/**
  * Effect engine capabilities/requirements flags.
  *
  * Definitions for flags field of effect descriptor.
@@ -195,7 +195,7 @@
     NO_PROCESS = 1 << NO_PROCESS_SHIFT
 };
 
-/*
+/**
  * The effect descriptor contains necessary information to facilitate the
  * enumeration of the effect engines present in a library.
  */
@@ -212,7 +212,7 @@
     uint8_t[64] implementor;  // human readable effect implementor name
 };
 
-/*
+/**
  * A buffer is a chunk of audio data for processing.  Multi-channel audio is
  * always interleaved. The channel order is from LSB to MSB with regard to the
  * channel mask definition in audio.h, audio_channel_mask_t, e.g.:
@@ -235,7 +235,7 @@
     ACCESS_ACCUMULATE
 };
 
-/*
+/**
  * Determines what fields of EffectBufferConfig need to be considered.
  */
 @export(name="", value_prefix="EFFECT_CONFIG_")
@@ -248,7 +248,7 @@
     ALL = BUFFER | SMP_RATE | CHANNELS | FORMAT | ACC_MODE
 };
 
-/*
+/**
  * The buffer config structure specifies the input or output audio format
  * to be used by the effect engine.
  */
@@ -285,7 +285,7 @@
                              // the effect is attached to
 };
 
-/*
+/**
  * The message queue flags used to synchronize reads and writes from
  * the status message queue used by effects.
  */
diff --git a/automotive/evs/1.0/types.hal b/automotive/evs/1.0/types.hal
index 661c2a9..0ce39d1 100644
--- a/automotive/evs/1.0/types.hal
+++ b/automotive/evs/1.0/types.hal
@@ -17,7 +17,7 @@
 package android.hardware.automotive.evs@1.0;
 
 
-/*
+/**
  * Bit flags indicating suggested uses for a given EVS camera
  *
  * The values in the UsageHint bit field provide a generic expression of how a
@@ -35,7 +35,7 @@
 };
 
 
-/*
+/**
  * Structure describing the basic properties of an EVS camera
  *
  * The HAL is responsible for filling out this structure for each
@@ -55,7 +55,7 @@
 };
 
 
-/*
+/**
  * Structure describing the basic properties of an EVS display
  *
  * The HAL is responsible for filling out this structure to describe
@@ -71,7 +71,7 @@
 };
 
 
-/*
+/**
  * Structure representing an image buffer through our APIs
  *
  * In addition to the handle to the graphics memory, we need to retain
@@ -94,7 +94,7 @@
 };
 
 
-/*
+/**
  * States for control of the EVS display
  *
  * The DisplayInfo structure describes the basic properties of an EVS display. Any EVS
@@ -112,11 +112,11 @@
 };
 
 
-/* Error codes used in EVS HAL interface. */
+/** Error codes used in EVS HAL interface. */
 enum EvsResult : uint32_t {
     OK = 0,
     INVALID_ARG,
     STREAM_ALREADY_RUNNING,
     BUFFER_NOT_AVAILABLE,
     UNDERLYING_SERVICE_ERROR,
-};
\ No newline at end of file
+};
diff --git a/automotive/vehicle/2.0/IVehicle.hal b/automotive/vehicle/2.0/IVehicle.hal
index 5de416f..d962de0 100644
--- a/automotive/vehicle/2.0/IVehicle.hal
+++ b/automotive/vehicle/2.0/IVehicle.hal
@@ -25,7 +25,7 @@
    */
   getAllPropConfigs() generates (vec<VehiclePropConfig> propConfigs);
 
-  /*
+  /**
    * Returns a list of property configurations for given properties.
    *
    * If requested VehicleProperty wasn't found it must return
diff --git a/automotive/vehicle/2.0/IVehicleCallback.hal b/automotive/vehicle/2.0/IVehicleCallback.hal
index 167e5e1..7060418 100644
--- a/automotive/vehicle/2.0/IVehicleCallback.hal
+++ b/automotive/vehicle/2.0/IVehicleCallback.hal
@@ -18,7 +18,7 @@
 
 interface IVehicleCallback {
 
-    /*
+    /**
      * Event callback happens whenever a variable that the API user has
      * subscribed to needs to be reported. This may be based purely on
      * threshold and frequency (a regular subscription, see subscribe call's
@@ -31,7 +31,7 @@
      */
     oneway onPropertyEvent(vec<VehiclePropValue> propValues);
 
-    /*
+    /**
      * This method gets called if the client was subscribed to a property using
      * SubscribeFlags::SET_CALL flag and IVehicle#set(...) method was called.
      *
@@ -42,7 +42,7 @@
      */
     oneway onPropertySet(VehiclePropValue propValue);
 
-    /*
+    /**
      * Set property value is usually asynchronous operation. Thus even if
      * client received StatusCode::OK from the IVehicle::set(...) this
      * doesn't guarantee that the value was successfully propagated to the
diff --git a/automotive/vehicle/2.0/types.hal b/automotive/vehicle/2.0/types.hal
index a998d33..f1fb6bf 100644
--- a/automotive/vehicle/2.0/types.hal
+++ b/automotive/vehicle/2.0/types.hal
@@ -16,7 +16,7 @@
 
 package android.hardware.automotive.vehicle@2.0;
 
-/*
+/**
  * Enumerates supported data types for VehicleProperty.
  *
  * This is a bitwise flag that supposed to be used in VehicleProperty enum.
@@ -31,7 +31,7 @@
     FLOAT_VEC      = 0x00610000,
     BYTES          = 0x00700000,
 
-    /*
+    /**
      * Any combination of scalar or vector types. The exact format must be
      * provided in the description of the property.
      */
@@ -40,7 +40,7 @@
     MASK           = 0x00ff0000
 };
 
-/*
+/**
  * Some properties may be associated with particular vehicle areas. For
  * example, VehicleProperty:DOOR_LOCK property must be associated with
  * particular door, thus this property must be marked with
@@ -62,18 +62,18 @@
       MASK         = 0x0f000000,
 };
 
-/*
+/**
  * Enumerates property groups.
  *
  * This is a bitwise flag that supposed to be used in VehicleProperty enum.
  */
 enum VehiclePropertyGroup : int32_t {
-    /*
+    /**
      * Properties declared in AOSP must have this flag.
      */
     SYSTEM         = 0x10000000,
 
-    /*
+    /**
      * Properties declared by vendors must have this flag.
      */
     VENDOR         = 0x20000000,
@@ -81,7 +81,7 @@
     MASK           = 0xf0000000,
 };
 
-/*
+/**
  * Declares all vehicle properties. VehicleProperty has a bitwise structure.
  * Each property must have:
  *   - an unique id from range 0x0100 - 0xffff
@@ -95,10 +95,10 @@
  */
 enum VehicleProperty: int32_t {
 
-    /* Undefined property. */
+    /** Undefined property. */
     INVALID = 0x00000000,
 
-    /*
+    /**
      * VIN of vehicle
      *
      * @change_mode VehiclePropertyChangeMode:STATIC
@@ -110,7 +110,7 @@
         | VehiclePropertyType:STRING
         | VehicleArea:GLOBAL),
 
-    /*
+    /**
      * Maker name of vehicle
      *
      * @change_mode VehiclePropertyChangeMode:STATIC
@@ -122,7 +122,7 @@
         | VehiclePropertyType:STRING
         | VehicleArea:GLOBAL),
 
-    /*
+    /**
      * Model of vehicle
      *
      * @change_mode VehiclePropertyChangeMode:STATIC
@@ -134,7 +134,7 @@
         | VehiclePropertyType:STRING
         | VehicleArea:GLOBAL),
 
-    /*
+    /**
      * Model year of vehicle.
      *
      * @change_mode VehiclePropertyChangeMode:STATIC
@@ -147,7 +147,7 @@
         | VehiclePropertyType:INT32
         | VehicleArea:GLOBAL),
 
-    /*
+    /**
      * Fuel capacity of the vehicle
      *
      * @change_mode VehiclePropertyChangeMode:STATIC
@@ -160,7 +160,7 @@
         | VehiclePropertyType:FLOAT
         | VehicleArea:GLOBAL),
 
-    /*
+    /**
      * Current odometer value of the vehicle
      *
      * @change_mode VehiclePropertyChangeMode:ON_CHANGE | VehiclePropertyChangeMode:CONTINUOUS
@@ -173,7 +173,7 @@
         | VehiclePropertyType:FLOAT
         | VehicleArea:GLOBAL),
 
-    /*
+    /**
      * Speed of the vehicle
      *
      * @change_mode VehiclePropertyChangeMode:ON_CHANGE|VehiclePropertyChangeMode:CONTINUOUS
@@ -186,7 +186,7 @@
         | VehiclePropertyType:FLOAT
         | VehicleArea:GLOBAL),
 
-    /*
+    /**
      * Temperature of engine coolant
      *
      * @change_mode VehiclePropertyChangeMode:ON_CHANGE|VehiclePropertyChangeMode:CONTINUOUS
@@ -199,7 +199,7 @@
         | VehiclePropertyType:FLOAT
         | VehicleArea:GLOBAL),
 
-    /*
+    /**
      * Temperature of engine oil
      *
      * @change_mode VehiclePropertyChangeMode:ON_CHANGE|VehiclePropertyChangeMode:CONTINUOUS
@@ -212,7 +212,7 @@
         | VehiclePropertyType:FLOAT
         | VehicleArea:GLOBAL),
 
-    /*
+    /**
      * Engine rpm
      *
      * @change_mode VehiclePropertyChangeMode:ON_CHANGE|VehiclePropertyChangeMode:CONTINUOUS
@@ -225,7 +225,7 @@
         | VehiclePropertyType:FLOAT
         | VehicleArea:GLOBAL),
 
-    /*
+    /**
      * Currently selected gear
      *
      * @change_mode VehiclePropertyChangeMode:ON_CHANGE
@@ -238,7 +238,7 @@
         | VehiclePropertyType:INT32
         | VehicleArea:GLOBAL),
 
-    /*
+    /**
      * Current gear. In non-manual case, selected gear does not necessarily
      * match the current gear.
      *
@@ -252,7 +252,7 @@
         | VehiclePropertyType:INT32
         | VehicleArea:GLOBAL),
 
-    /*
+    /**
      * Parking brake state.
      *
      * @change_mode VehiclePropertyChangeMode:ON_CHANGE
@@ -264,7 +264,7 @@
         | VehiclePropertyType:BOOLEAN
         | VehicleArea:GLOBAL),
 
-    /*
+    /**
      * Driving status policy.
      *
      * @change_mode VehiclePropertyChangeMode:ON_CHANGE
@@ -277,7 +277,7 @@
         | VehiclePropertyType:INT32
         | VehicleArea:GLOBAL),
 
-    /*
+    /**
      * Warning for fuel low level.
      *
      * @change_mode VehiclePropertyChangeMode:ON_CHANGE
@@ -289,7 +289,7 @@
         | VehiclePropertyType:BOOLEAN
         | VehicleArea:GLOBAL),
 
-    /*
+    /**
      * Night mode or not.
      *
      * @change_mode VehiclePropertyChangeMode:ON_CHANGE
@@ -301,7 +301,7 @@
         | VehiclePropertyType:BOOLEAN
         | VehicleArea:GLOBAL),
 
-    /*
+    /**
      * State of the vehicles turn signals
      *
      * Values from VehicleTurnSignal
@@ -315,7 +315,7 @@
         | VehiclePropertyType:INT32
         | VehicleArea:GLOBAL),
 
-    /*
+    /**
      * Represents ignition state
      *
      * @change_mode VehiclePropertyChangeMode:ON_CHANGE
@@ -327,7 +327,7 @@
             | VehiclePropertyType:INT32
             | VehicleArea:GLOBAL),
 
-    /*
+    /**
      * Fan speed setting
      *
      * IVehicle#set may return StatusCode::NOT_AVAILABLE and IVehicle#get is not
@@ -343,7 +343,7 @@
         | VehiclePropertyType:INT32
         | VehicleArea:ZONE),
 
-    /*
+    /**
      * Fan direction setting
      *
      * IVehicle#set may return StatusCode::NOT_AVAILABLE and IVehicle#get is not
@@ -360,7 +360,7 @@
         | VehiclePropertyType:INT32
         | VehicleArea:ZONE),
 
-    /*
+    /**
      * HVAC current temperature.
      *
      * IVehicle#set may return StatusCode::NOT_AVAILABLE and IVehicle#get is not
@@ -376,7 +376,7 @@
         | VehiclePropertyType:FLOAT
         | VehicleArea:ZONE),
 
-    /*
+    /**
      * HVAC, target temperature set.
      *
      * IVehicle#set may return StatusCode::NOT_AVAILABLE and IVehicle#get is not
@@ -392,7 +392,7 @@
         | VehiclePropertyType:FLOAT
         | VehicleArea:ZONE),
 
-    /*
+    /**
      * On/off defrost
      *
      * IVehicle#set may return StatusCode::NOT_AVAILABLE and IVehicle#get is not
@@ -408,7 +408,7 @@
         | VehiclePropertyType:BOOLEAN
         | VehicleArea:WINDOW),
 
-    /*
+    /**
      * On/off AC
      *
      * IVehicle#set may return StatusCode::NOT_AVAILABLE and IVehicle#get is not
@@ -425,7 +425,7 @@
         | VehiclePropertyType:BOOLEAN
         | VehicleArea:ZONE),
 
-    /*
+    /**
      * On/off max AC
      *
      * IVehicle#set may return StatusCode::NOT_AVAILABLE and IVehicle#get is not
@@ -441,7 +441,7 @@
         | VehiclePropertyType:BOOLEAN
         | VehicleArea:ZONE),
 
-    /*
+    /**
      * On/off max defrost
      *
      * IVehicle#set may return StatusCode::NOT_AVAILABLE and IVehicle#get is not
@@ -457,7 +457,7 @@
         | VehiclePropertyType:BOOLEAN
         | VehicleArea:ZONE),
 
-    /*
+    /**
      * On/off re-circulation
      *
      * IVehicle#set may return StatusCode::NOT_AVAILABLE and IVehicle#get is not
@@ -473,7 +473,7 @@
         | VehiclePropertyType:BOOLEAN
         | VehicleArea:ZONE),
 
-    /*
+    /**
      * On/off dual. This must be defined per each row.
      *
      * IVehicle#set may return StatusCode::NOT_AVAILABLE and IVehicle#get is not
@@ -489,7 +489,7 @@
         | VehiclePropertyType:BOOLEAN
         | VehicleArea:ZONE),
 
-    /*
+    /**
      * On/off automatic mode
      *
      * IVehicle#set may return StatusCode::NOT_AVAILABLE and IVehicle#get is not
@@ -505,7 +505,7 @@
         | VehiclePropertyType:BOOLEAN
         | VehicleArea:ZONE),
 
-    /*
+    /**
      * Seat temperature
      *
      * Negative values indicate cooling.
@@ -622,7 +622,7 @@
         | VehiclePropertyType:INT32
         | VehicleArea:ZONE),
 
-    /*
+    /**
      * Represents power state for HVAC. Some HVAC properties must require
      * matching power to be turned on to get out of OFF state. For non-zoned
      * HVAC properties, VEHICLE_ALL_ZONE corresponds to global power state.
@@ -640,7 +640,7 @@
         | VehiclePropertyType:BOOLEAN
         | VehicleArea:ZONE),
 
-    /*
+    /**
      * Outside temperature
      *
      * @change_mode VehiclePropertyChangeMode:ON_CHANGE|VehiclePropertyChangeMode:CONTINUOUS
@@ -653,7 +653,7 @@
         | VehiclePropertyType:FLOAT
         | VehicleArea:GLOBAL),
 
-    /*
+    /**
      * Cabin temperature
      *
      * @change_mode VehiclePropertyChangeMode:ON_CHANGE|VehiclePropertyChangeMode:CONTINUOUS
@@ -666,7 +666,7 @@
         | VehiclePropertyType:FLOAT
         | VehicleArea:GLOBAL),
 
-    /*
+    /**
      * Radio presets stored on the Car radio module. The data type used is int32
      * array with the following fields:
      * <ul>
@@ -690,7 +690,7 @@
         | VehiclePropertyType:INT32_VEC
         | VehicleArea:GLOBAL),
 
-    /*
+    /**
      * Represents audio focus state of Android side. Note that car's audio
      * module must own audio focus and grant audio focus to Android side when
      * requested by Android side. The focus has both per stream characteristics
@@ -776,7 +776,7 @@
         | VehiclePropertyType:INT32_VEC
         | VehicleArea:GLOBAL),
 
-    /*
+    /**
      * A property to allow external component to control audio focus. Depending on
      * H/W architecture, audio HAL may need to control audio focus while vehicle
      * HAL is still interacting with upper layer. In such case, audio HAL may set
@@ -793,7 +793,7 @@
         | VehiclePropertyType:INT32_VEC
         | VehicleArea:GLOBAL),
 
-    /*
+    /**
      * Property to control audio volume of each audio context.
      *
      * VehiclePropConfig
@@ -830,7 +830,7 @@
         | VehiclePropertyType:INT32_VEC
         | VehicleArea:GLOBAL),
 
-    /*
+    /**
      * Property to allow audio volume sync from external components like audio HAL.
      * Some vehicle HAL implementation may get volume control from audio HAL and in such
      * case, setting AUDIO_VOLUME_EXT_SYNC property may trigger event in AUDIO_VOLUME property.
@@ -846,7 +846,7 @@
         | VehiclePropertyType:INT32_VEC
         | VehicleArea:GLOBAL),
 
-    /*
+    /**
      * Property for handling volume limit set by user. This limits maximum
      * volume that can be set per each context or physical stream.
      *
@@ -880,7 +880,7 @@
         | VehiclePropertyType:INT32_VEC
         | VehicleArea:GLOBAL),
 
-    /*
+    /**
      * Property to share audio routing policy of android side. This property is
      * set at the beginning to pass audio policy in android side down to
      * vehicle HAL and car audio module.
@@ -908,7 +908,7 @@
         | VehiclePropertyType:INT32_VEC
         | VehicleArea:GLOBAL),
 
-    /*
+    /**
      * Property to return audio H/W variant type used in this car. This allows
      * android side to support different audio policy based on H/W variant used.
      * Note that other components like CarService may need overlay update to
@@ -926,7 +926,7 @@
         | VehiclePropertyType:INT32
         | VehicleArea:GLOBAL),
 
-    /*
+    /**
      * Property to pass hint on external audio routing. When android side
      * request focus with VehicleAudioExtFocusflag, this
      * property must be set before setting AUDIO_FOCUS property as a hint for
@@ -1028,7 +1028,7 @@
         | VehiclePropertyType:STRING
         | VehicleArea:GLOBAL),
 
-    /*
+    /**
      * Property to control power state of application processor
      *
      * It is assumed that AP's power state is controller by separate power
@@ -1054,7 +1054,7 @@
         | VehiclePropertyType:INT32_VEC
         | VehicleArea:GLOBAL),
 
-    /*
+    /**
      * Property to represent brightness of the display. Some cars have single
      * control for the brightness of all displays and this property is to share
      * change in that control.
@@ -1073,7 +1073,7 @@
         | VehiclePropertyType:INT32
         | VehicleArea:GLOBAL),
 
-    /*
+    /**
      * Property to report bootup reason for the current power on. This is a
      * static property that will not change for the whole duration until power
      * off. For example, even if user presses power on button after automatic
@@ -1091,7 +1091,7 @@
         | VehiclePropertyType:INT32
         | VehicleArea:GLOBAL),
 
-    /*
+    /**
      * Property to feed H/W input events to android
      *
      * int32Values[0] : action defined by VehicleHwKeyInputAction
@@ -1109,7 +1109,7 @@
         | VehiclePropertyType:INT32_VEC
         | VehicleArea:GLOBAL),
 
-    /*
+    /**
      * Property to define instrument cluster information.
      * For VehicleInstrumentClusterType:EXTERNAL_DISPLAY:
      *  READ:
@@ -1143,7 +1143,7 @@
         | VehiclePropertyType:INT32_VEC
         | VehicleArea:GLOBAL),
 
-    /*
+    /**
      * Current date and time, encoded as Unix time.
      * This value denotes the number of seconds that have elapsed since
      * 1/1/1970.
@@ -1158,7 +1158,7 @@
         | VehiclePropertyType:INT64
         | VehicleArea:GLOBAL),
 
-    /*
+    /**
      * Current time only.
      * Some vehicles may not keep track of date.  This property only affects
      * the current time, in seconds during the day.  Thus, the max value for
@@ -1174,7 +1174,7 @@
         | VehiclePropertyType:INT32
         | VehicleArea:GLOBAL),
 
-    /*
+    /**
      * Door position
      *
      * This is an integer in case a door may be set to a particular position.
@@ -1192,7 +1192,7 @@
         | VehiclePropertyType:INT32
         | VehicleArea:DOOR),
 
-    /*
+    /**
      * Door move
      *
      * @change_mode VehiclePropertyChangeMode:ON_CHANGE
@@ -1204,7 +1204,7 @@
         | VehiclePropertyType:INT32
         | VehicleArea:DOOR),
 
-    /*
+    /**
      * Door lock
      *
      * 'true' indicates door is locked
@@ -1218,7 +1218,7 @@
         | VehiclePropertyType:BOOLEAN
         | VehicleArea:DOOR),
 
-    /*
+    /**
      * Mirror Z Position
      *
      * Positive value indicates tilt upwards, negative value is downwards
@@ -1232,7 +1232,7 @@
         | VehiclePropertyType:INT32
         | VehicleArea:MIRROR),
 
-    /*
+    /**
      * Mirror Z Move
      *
      * Positive value indicates tilt upwards, negative value is downwards
@@ -1246,7 +1246,7 @@
         | VehiclePropertyType:INT32
         | VehicleArea:MIRROR),
 
-    /*
+    /**
      * Mirror Y Position
      *
      * Positive value indicate tilt right, negative value is left
@@ -1260,7 +1260,7 @@
         | VehiclePropertyType:INT32
         | VehicleArea:MIRROR),
 
-    /*
+    /**
      * Mirror Y Move
      *
      * Positive value indicate tilt right, negative value is left
@@ -1274,7 +1274,7 @@
         | VehiclePropertyType:INT32
         | VehicleArea:MIRROR),
 
-    /*
+    /**
      * Mirror Lock
      *
      * True indicates mirror positions are locked and not changeable
@@ -1288,7 +1288,7 @@
         | VehiclePropertyType:BOOLEAN
         | VehicleArea:GLOBAL),
 
-    /*
+    /**
      * Mirror Fold
      *
      * True indicates mirrors are folded
@@ -1302,7 +1302,7 @@
         | VehiclePropertyType:BOOLEAN
         | VehicleArea:GLOBAL),
 
-    /*
+    /**
      * Seat memory select
      *
      * This parameter selects the memory preset to use to select the seat
@@ -1322,7 +1322,7 @@
         | VehiclePropertyType:INT32
         | VehicleArea:SEAT),
 
-    /*
+    /**
      * Seat memory set
      *
      * This setting allows the user to save the current seat position settings
@@ -1338,7 +1338,7 @@
         | VehiclePropertyType:INT32
         | VehicleArea:SEAT),
 
-    /*
+    /**
      * Seatbelt buckled
      *
      * True indicates belt is buckled.
@@ -1355,7 +1355,7 @@
         | VehiclePropertyType:BOOLEAN
         | VehicleArea:SEAT),
 
-    /*
+    /**
      * Seatbelt height position
      *
      * Adjusts the shoulder belt anchor point.
@@ -1371,7 +1371,7 @@
         | VehiclePropertyType:INT32
         | VehicleArea:SEAT),
 
-    /*
+    /**
      * Seatbelt height move
      *
      * @change_mode VehiclePropertyChangeMode:ON_CHANGE
@@ -1383,7 +1383,7 @@
         | VehiclePropertyType:INT32
         | VehicleArea:SEAT),
 
-    /*
+    /**
      * Seat fore/aft position
      *
      * Sets the seat position forward (closer to steering wheel) and backwards.
@@ -1399,7 +1399,7 @@
         | VehiclePropertyType:INT32
         | VehicleArea:SEAT),
 
-    /*
+    /**
      * Seat fore/aft move
      *
      * Moves the seat position forward and aft.
@@ -1413,7 +1413,7 @@
         | VehiclePropertyType:INT32
         | VehicleArea:SEAT),
 
-    /*
+    /**
      * Seat backrest angle 1 position
      *
      * Backrest angle 1 is the actuator closest to the bottom of the seat.
@@ -1429,7 +1429,7 @@
         | VehiclePropertyType:INT32
         | VehicleArea:SEAT),
 
-    /*
+    /**
      * Seat backrest angle 1 move
      *
      * Moves the backrest forward or recline.
@@ -1443,7 +1443,7 @@
         | VehiclePropertyType:INT32
         | VehicleArea:SEAT),
 
-    /*
+    /**
      * Seat backrest angle 2 position
      *
      * Backrest angle 2 is the next actuator up from the bottom of the seat.
@@ -1459,7 +1459,7 @@
         | VehiclePropertyType:INT32
         | VehicleArea:SEAT),
 
-    /*
+    /**
      * Seat backrest angle 2 move
      *
      * Moves the backrest forward or recline.
@@ -1473,7 +1473,7 @@
         | VehiclePropertyType:INT32
         | VehicleArea:SEAT),
 
-    /*
+    /**
      * Seat height position
      *
      * Sets the seat height.
@@ -1489,7 +1489,7 @@
         | VehiclePropertyType:INT32
         | VehicleArea:SEAT),
 
-    /*
+    /**
      * Seat height move
      *
      * Moves the seat height.
@@ -1503,7 +1503,7 @@
         | VehiclePropertyType:INT32
         | VehicleArea:SEAT),
 
-    /*
+    /**
      * Seat depth position
      *
      * Sets the seat depth, distance from back rest to front edge of seat.
@@ -1519,7 +1519,7 @@
         | VehiclePropertyType:INT32
         | VehicleArea:SEAT),
 
-    /*
+    /**
      * Seat depth move
      *
      * Adjusts the seat depth.
@@ -1533,7 +1533,7 @@
         | VehiclePropertyType:INT32
         | VehicleArea:SEAT),
 
-    /*
+    /**
      * Seat tilt position
      *
      * Sets the seat tilt.
@@ -1549,7 +1549,7 @@
         | VehiclePropertyType:INT32
         | VehicleArea:SEAT),
 
-    /*
+    /**
      * Seat tilt move
      *
      * Tilts the seat.
@@ -1563,7 +1563,7 @@
         | VehiclePropertyType:INT32
         | VehicleArea:SEAT),
 
-    /*
+    /**
      * Lumber fore/aft position
      *
      * Pushes the lumbar support forward and backwards
@@ -1579,7 +1579,7 @@
         | VehiclePropertyType:INT32
         | VehicleArea:SEAT),
 
-    /*
+    /**
      * Lumbar fore/aft move
      *
      * Adjusts the lumbar support.
@@ -1593,7 +1593,7 @@
         | VehiclePropertyType:INT32
         | VehicleArea:SEAT),
 
-    /*
+    /**
      * Lumbar side support position
      *
      * Sets the amount of lateral lumbar support.
@@ -1609,7 +1609,7 @@
         | VehiclePropertyType:INT32
         | VehicleArea:SEAT),
 
-    /*
+    /**
      * Lumbar side support move
      *
      * Adjusts the amount of lateral lumbar support.
@@ -1623,7 +1623,7 @@
         | VehiclePropertyType:INT32
         | VehicleArea:SEAT),
 
-    /*
+    /**
      * Headrest height position
      *
      * Sets the headrest height.
@@ -1639,7 +1639,7 @@
         | VehiclePropertyType:INT32
         | VehicleArea:GLOBAL),
 
-    /*
+    /**
      * Headrest height move
      *
      * Moves the headrest up and down.
@@ -1653,7 +1653,7 @@
         | VehiclePropertyType:INT32
         | VehicleArea:SEAT),
 
-    /*
+    /**
      * Headrest angle position
      *
      * Sets the angle of the headrest.
@@ -1669,7 +1669,7 @@
         | VehiclePropertyType:INT32
         | VehicleArea:SEAT),
 
-    /*
+    /**
      * Headrest angle move
      *
      * Adjusts the angle of the headrest
@@ -1683,7 +1683,7 @@
         | VehiclePropertyType:INT32
         | VehicleArea:SEAT),
 
-    /*
+    /**
      * Headrest fore/aft position
      *
      * Adjusts the headrest forwards and backwards.
@@ -1699,7 +1699,7 @@
         | VehiclePropertyType:INT32
         | VehicleArea:SEAT),
 
-    /*
+    /**
      * Headrest fore/aft move
      *
      * @change_mode VehiclePropertyChangeMode:ON_CHANGE
@@ -1711,7 +1711,7 @@
         | VehiclePropertyType:INT32
         | VehicleArea:SEAT),
 
-    /*
+    /**
      * Window Position
      *
      * Max = window up / closed
@@ -1726,7 +1726,7 @@
         | VehiclePropertyType:INT32
         | VehicleArea:GLOBAL),
 
-    /*
+    /**
      * Window Move
      *
      * Max = window up / closed
@@ -1743,7 +1743,7 @@
         | VehiclePropertyType:INT32
         | VehicleArea:GLOBAL),
 
-    /*
+    /**
      * Window Vent Position
      *
      * This feature is used to control the vent feature on a sunroof.
@@ -1760,7 +1760,7 @@
         | VehiclePropertyType:INT32
         | VehicleArea:GLOBAL),
 
-    /*
+    /**
      * Window Vent Move
      *
      * This feature is used to control the vent feature on a sunroof.
@@ -1777,7 +1777,7 @@
         | VehiclePropertyType:INT32
         | VehicleArea:GLOBAL),
 
-    /*
+    /**
      * Window Lock
      *
      * True indicates windows are locked and can't be moved.
@@ -1792,7 +1792,7 @@
         | VehicleArea:GLOBAL),
 };
 
-/*
+/**
  * Bit flags for fan direction
  */
 enum VehicleHvacFanDirection : int32_t {
@@ -1803,11 +1803,11 @@
   DEFROST_AND_FLOOR = 0x5,
 };
 
-/*
+/**
  * Constants relevant to radio.
  */
 enum VehicleRadioConstants : int32_t {
-  /* Minimum value for the radio preset */
+  /** Minimum value for the radio preset */
   VEHICLE_RADIO_PRESET_MIN_VALUE = 1,
 };
 
@@ -1815,7 +1815,7 @@
   REQUEST_GAIN = 0x1,
   REQUEST_GAIN_TRANSIENT = 0x2,
   REQUEST_GAIN_TRANSIENT_MAY_DUCK = 0x3,
-  /*
+  /**
    * This is for the case where android side plays sound like UI feedback
    * and car side does not need to duck existing playback as long as
    * requested stream is available.
@@ -1826,34 +1826,34 @@
 };
 
 enum VehicleAudioFocusState : int32_t {
-  /*
+  /**
    * Android side has permanent focus and can play allowed streams.
    */
   STATE_GAIN = 0x1,
 
-  /*
+  /**
    * Android side has transient focus and can play allowed streams.
    */
   STATE_GAIN_TRANSIENT = 0x2,
 
-  /*
+  /**
    * Car audio module is playing guidance kind of sound outside Android.
    * Android side can still play through allowed streams with ducking.
    */
   STATE_LOSS_TRANSIENT_CAN_DUCK = 0x3,
 
-  /*
+  /**
    * Car audio module is playing transient sound outside Android. Android side
    * must stop playing any sounds.
    */
   STATE_LOSS_TRANSIENT = 0x4,
 
-  /*
+  /**
    * Android side has lost focus and cannot play any sound.
    */
   STATE_LOSS = 0x5,
 
-  /*
+  /**
    * car audio module is playing safety critical sound, and Android side cannot
    * request focus until the current state is finished. car audio module
    * restore it to the previous state when it can allow Android to play.
@@ -1862,7 +1862,7 @@
 
 };
 
-/*
+/**
  * Flags to represent multiple streams by combining these.
  */
 enum VehicleAudioStreamFlag : int32_t {
@@ -1871,7 +1871,7 @@
   STREAM2_FLAG = (0x1 << 2),
 };
 
-/*
+/**
  * Represents stream number (always 0 to N -1 where N is max number of streams).
  * Can be used for audio related property expecting one stream.
  */
@@ -1880,27 +1880,27 @@
   STREAM1 = 1,
 };
 
-/*
+/**
  * Flag to represent external focus state (outside Android).
  */
 enum VehicleAudioExtFocusFlag : int32_t {
-  /*
+  /**
    * No external focus holder.
    */
   NONE_FLAG = 0x0,
 
-  /*
+  /**
    * Car side (outside Android) has component holding GAIN kind of focus state.
    */
   PERMANENT_FLAG = 0x1,
 
-  /*
+  /**
    * Car side (outside Android) has component holding GAIN_TRANSIENT kind of
    * focus state.
    */
   TRANSIENT_FLAG = 0x2,
 
-  /*
+  /**
    * Car side is expected to play something while focus is held by Android side.
    * One example can be radio attached in car side. But Android's radio app
    * still must have focus, and Android side must be in GAIN state, but
@@ -1909,14 +1909,14 @@
    */
   PLAY_ONLY_FLAG = 0x4,
 
-  /*
+  /**
    * Car side must mute any media including radio. This can be used with any
    * focus request including GAIN* and RELEASE.
    */
   MUTE_MEDIA_FLAG = 0x8,
 };
 
-/*
+/**
  * Index in int32Values for VehicleProperty#AUDIO_FOCUS property.
  */
 enum VehicleAudioFocusIndex : int32_t {
@@ -1926,65 +1926,65 @@
   AUDIO_CONTEXTS = 3,
 };
 
-/*
+/**
  * Flags to tell the current audio context.
  */
 enum VehicleAudioContextFlag : int32_t {
-  /* Music playback is currently active. */
+  /** Music playback is currently active. */
   MUSIC_FLAG = 0x1,
 
-  /* Navigation is currently running. */
+  /** Navigation is currently running. */
   NAVIGATION_FLAG = 0x2,
 
-  /* Voice command session is currently running. */
+  /** Voice command session is currently running. */
   VOICE_COMMAND_FLAG = 0x4,
 
-  /* Voice call is currently active. */
+  /** Voice call is currently active. */
   CALL_FLAG = 0x8,
 
-  /*
+  /**
    * Alarm is active.
    * This must be only used in VehicleProperty#AUDIO_ROUTING_POLICY.
    */
   ALARM_FLAG = 0x10,
 
-  /*
+  /**
    * Notification sound is active.
    * This must be only used in VehicleProperty#AUDIO_ROUTING_POLICY.
    */
   NOTIFICATION_FLAG = 0x20,
 
-  /*
+  /**
    * Context unknown. Only used for VehicleProperty#AUDIO_ROUTING_POLICY to
    * represent default stream for unknown contents.
    */
   UNKNOWN_FLAG = 0x40,
 
-  /* Safety alert / warning is played. */
+  /** Safety alert / warning is played. */
   SAFETY_ALERT_FLAG = 0x80,
 
-  /* CD / DVD kind of audio is played */
+  /** CD / DVD kind of audio is played */
   CD_ROM_FLAG = 0x100,
 
-  /* Aux audio input is played */
+  /** Aux audio input is played */
   AUX_AUDIO_FLAG = 0x200,
 
-  /* system sound like UI feedback */
+  /** system sound like UI feedback */
   SYSTEM_SOUND_FLAG = 0x400,
 
-  /* Radio is played */
+  /** Radio is played */
   RADIO_FLAG = 0x800,
 
-  /* Ext source is played. This is for tagging generic ext sources. */
+  /** Ext source is played. This is for tagging generic ext sources. */
   EXT_SOURCE_FLAG = 0x1000,
 };
 
-/*
+/**
  * flags to represent capability of audio volume property.
  * used in configArray[1] of VehiclePropConfig.
  */
 enum VehicleAudioVolumeCapabilityFlag : int32_t {
-  /*
+  /**
    * External audio module or vehicle hal has persistent storage
    * to keep the volume level. This must be set only when per context
    * volume level is supported. When this is set, audio volume level per
@@ -1998,7 +1998,7 @@
    */
   PERSISTENT_STORAGE = 0x1,
 
-  /*
+  /**
    * When this flag is set, the H/W can support only single master volume for
    * all streams.
    * There is no way to set volume level differently per each stream or context.
@@ -2006,13 +2006,13 @@
   MASTER_VOLUME_ONLY = 0x2,
 };
 
-/*
+/**
  * enum to represent audio volume state.
  */
 enum VehicleAudioVolumeState : int32_t {
   STATE_OK = 0,
 
-  /*
+  /**
    * Audio volume has reached volume limit set in
    * VehicleProperty#AUDIO_VOLUME_LIMIT and user's request to increase volume
    * further is not allowed.
@@ -2020,7 +2020,7 @@
   LIMIT_REACHED = 1,
 };
 
-/*
+/**
  * Index in int32Values for VehicleProperty#AUDIO_VOLUME property.
  */
 enum VehicleAudioVolumeIndex : int32_t {
@@ -2029,7 +2029,7 @@
   INDEX_STATE = 2,
 };
 
-/*
+/**
  * Index in int32Values for VehicleProperty#AUDIO_VOLUME_LIMIT property.
  */
 enum VehicleAudioVolumeLimitIndex : int32_t {
@@ -2037,7 +2037,7 @@
   MAX_VOLUME = 1,
 };
 
-/*
+/**
  * Index in int32Values for VehicleProperty#AUDIO_ROUTING_POLICY property.
  */
 enum VehicleAudioRoutingPolicyIndex : int32_t {
@@ -2045,12 +2045,12 @@
   CONTEXTS = 1,
 };
 
-/*
+/**
  * Flag to be used in VehiclePropConfig#configFlags for
  * VehicleProperty#AUDIO_HW_VARIANT.
  */
 enum VehicleAudioHwVariantConfigFlag : int32_t {
-  /*
+  /**
    * Flag to tell that radio is internal to android and radio must
    * be treated like other android stream like media.
    * When this flag is not set or AUDIO_HW_VARIANT does not exist,
@@ -2061,13 +2061,13 @@
 };
 
 enum VehicleApPowerStateConfigFlag : int32_t /* NOTE: type is guessed */ {
-  /*
+  /**
    * AP can enter deep sleep state. If not set, AP will always shutdown from
    * VehicleApPowerState#SHUTDOWN_PREPARE power state.
    */
   ENABLE_DEEP_SLEEP_FLAG = 0x1,
 
-  /*
+  /**
    * The power controller can power on AP from off state after timeout
    * specified in VehicleApPowerSet VEHICLE_AP_POWER_SET_SHUTDOWN_READY message.
    */
@@ -2075,19 +2075,19 @@
 };
 
 enum VehicleApPowerState : int32_t /* NOTE: type is guessed */ {
-  /* vehicle HAL will never publish this state to AP */
+  /** vehicle HAL will never publish this state to AP */
   OFF = 0,
 
-  /* vehicle HAL will never publish this state to AP */
+  /** vehicle HAL will never publish this state to AP */
   DEEP_SLEEP = 1,
 
-  /* AP is on but display must be off. */
+  /** AP is on but display must be off. */
   ON_DISP_OFF = 2,
 
-  /* AP is on with display on. This state allows full user interaction. */
+  /** AP is on with display on. This state allows full user interaction. */
   ON_FULL = 3,
 
-  /*
+  /**
    * The power controller has requested AP to shutdown. AP can either enter
    * sleep state or start full shutdown. AP can also request postponing
    * shutdown by sending VehicleApPowerSetState#SHUTDOWN_POSTPONE message. The
@@ -2100,30 +2100,30 @@
 };
 
 enum VehicleApPowerStateShutdownParam : int32_t {
-  /* AP must shutdown immediately. Postponing is not allowed. */
+  /** AP must shutdown immediately. Postponing is not allowed. */
   SHUTDOWN_IMMEDIATELY = 1,
 
-  /* AP can enter deep sleep instead of shutting down completely. */
+  /** AP can enter deep sleep instead of shutting down completely. */
   CAN_SLEEP = 2,
 
-  /* AP can only shutdown with postponing allowed. */
+  /** AP can only shutdown with postponing allowed. */
   SHUTDOWN_ONLY = 3,
 };
 
 enum VehicleApPowerSetState : int32_t /* NOTE: type is guessed */ {
-  /*
+  /**
    * AP has finished boot up, and can start shutdown if requested by power
    * controller.
    */
   BOOT_COMPLETE = 0x1,
 
-  /*
+  /**
    * AP is entering deep sleep state. How this state is implemented may vary
    * depending on each H/W, but AP's power must be kept in this state.
    */
   DEEP_SLEEP_ENTRY = 0x2,
 
-  /*
+  /**
    * AP is exiting from deep sleep state, and is in
    * VehicleApPowerState#SHUTDOWN_PREPARE state.
    * The power controller may change state to other ON states based on the
@@ -2131,7 +2131,7 @@
    */
   DEEP_SLEEP_EXIT = 0x3,
 
-  /*
+  /**
    * int32Values[1]: Time to postpone shutdown in ms. Maximum value can be
    *                 5000 ms.
    *                 If AP needs more time, it will send another POSTPONE
@@ -2139,7 +2139,7 @@
    */
   SHUTDOWN_POSTPONE = 0x4,
 
-  /*
+  /**
    * AP is starting shutting down. When system completes shutdown, everything
    * will stop in AP as kernel will stop all other contexts. It is
    * responsibility of vehicle HAL or lower level to synchronize that state
@@ -2158,7 +2158,7 @@
    */
   SHUTDOWN_START = 0x5,
 
-  /*
+  /**
    * User has requested to turn off headunit's display, which is detected in
    * android side.
    * The power controller may change the power state to
@@ -2166,7 +2166,7 @@
    */
   DISPLAY_OFF = 0x6,
 
-  /*
+  /**
    * User has requested to turn on headunit's display, most probably from power
    * key input which is attached to headunit. The power controller may change
    * the power state to VehicleApPowerState#ON_FULL.
@@ -2174,7 +2174,7 @@
   DISPLAY_ON = 0x7,
 };
 
-/*
+/**
  * Index in int32Values for VehicleProperty#AP_POWER_STATE property.
  */
 enum VehicleApPowerStateIndex : int32_t {
@@ -2182,23 +2182,23 @@
   ADDITIONAL = 1,
 };
 
-/*
+/**
  * Enum to represent bootup reason.
  */
 enum VehicleApPowerBootupReason : int32_t {
-  /*
+  /**
    * Power on due to user's pressing of power key or rotating of ignition
    * switch.
    */
   USER_POWER_ON = 0,
 
-  /*
+  /**
    * Automatic power on triggered by door unlock or any other kind of automatic
    * user detection.
    */
   USER_UNLOCK = 1,
 
-  /*
+  /**
    * Automatic power on triggered by timer. This only happens when AP has asked
    * wake-up after
    * certain time through time specified in
@@ -2208,40 +2208,40 @@
 };
 
 enum VehicleHwKeyInputAction : int32_t {
-  /* Key down */
+  /** Key down */
   ACTION_DOWN = 0,
 
-  /* Key up */
+  /** Key up */
   ACTION_UP = 1,
 };
 
 enum VehicleDisplay : int32_t {
-  /* center console */
+  /** center console */
   MAIN = 0,
 
   INSTRUMENT_CLUSTER = 1,
 };
 
-/*
+/**
  * Represents instrument cluster type available in system
  */
 enum VehicleInstrumentClusterType : int32_t {
-  /* Android has no access to instument cluster */
+  /** Android has no access to instument cluster */
   NONE = 0,
 
-  /*
+  /**
    * Instrument cluster can communicate through vehicle hal with additional
    * properties to exchange meta-data
    */
   HAL_INTERFACE = 1,
 
-  /*
+  /**
    * Instrument cluster is external display where android can render contents
    */
   EXTERNAL_DISPLAY = 2,
 };
 
-/*
+/**
  * Units used for int or float type with no attached enum types.
  */
 enum VehicleUnit : int32_t {
@@ -2263,17 +2263,17 @@
     YEAR           = 0x59,
 };
 
-  /*
+  /**
    * This describes how value of property can change.
    */
 enum VehiclePropertyChangeMode : int32_t {
-  /*
+  /**
    * Property of this type must never be changed. Subscription is not supported
    * for these properties.
    */
   STATIC = 0x00,
 
-  /*
+  /**
    * Property of this type must be reported when there is a change.
    * IVehicle#get call must return the current value.
    * Set operation for this property is assumed to be asynchronous. When the
@@ -2284,18 +2284,18 @@
    */
   ON_CHANGE = 0x01,
 
-  /*
+  /**
    * Property of this type change continuously and requires fixed rate of
    * sampling to retrieve the data.
    */
   CONTINUOUS = 0x02,
 
-  /*
+  /**
    * Property of this type may be polled to get the current value.
    */
   POLL = 0x03,
 
-  /*
+  /**
    * This is for property where change event must be sent only when the
    * value is set from external component. Normal value change must not trigger
    * event. For example, clock property can send change event only when it is
@@ -2305,7 +2305,7 @@
   ON_SET = 0x04,
 };
 
-/*
+/**
  * Property config defines the capabilities of it. User of the API
  * must first get the property config to understand the output from get()
  * commands and also to ensure that set() or events commands are in sync with
@@ -2319,7 +2319,7 @@
   READ_WRITE = 0x03,
 };
 
-/*
+/**
  * Car states.
  *
  * The driving states determine what features of the UI will be accessible.
@@ -2333,7 +2333,7 @@
   LIMIT_MESSAGE_LEN = 0x10,
 };
 
-/*
+/**
  * Various gears which can be selected by user and chosen in system.
  */
 enum VehicleGear: int32_t {
@@ -2353,7 +2353,7 @@
   GEAR_9 = 0x1000,
 };
 
-/*
+/**
  * Various zones in the car.
  *
  * Zones are used for Air Conditioning purposes and divide the car into physical
@@ -2379,7 +2379,7 @@
   WHOLE_CABIN = 0x80000000,
 };
 
-/*
+/**
  * Various Seats in the car.
  */
 enum VehicleAreaSeat : int32_t {
@@ -2394,7 +2394,7 @@
     ROW_3_RIGHT  = 0x0400
 };
 
-/*
+/**
  * Various windshields/windows in the car.
  */
 enum VehicleAreaWindow : int32_t {
@@ -2434,7 +2434,7 @@
 };
 
 struct VehicleAreaConfig {
-    /*
+    /**
      * Area id is ignored for VehiclePropertyGroup:GLOBAL properties.
      */
     int32_t areaId;
@@ -2450,32 +2450,32 @@
 };
 
 struct VehiclePropConfig {
-    /* Property identifier */
+    /** Property identifier */
     int32_t prop;
 
-    /*
+    /**
      * Defines if the property is read or write or both.
      */
     VehiclePropertyAccess access;
 
-    /*
+    /**
      * Defines the change mode of the property.
      */
     VehiclePropertyChangeMode changeMode;
 
-    /*
+    /**
      * Some of the properties may have associated areas (for example, some hvac
      * properties are associated with VehicleAreaZone), in these
      * cases the config may contain an ORed value for the associated areas.
      */
     int32_t supportedAreas;
 
-    /*
+    /**
      * Contains per-area configuration.
      */
     vec<VehicleAreaConfig> areaConfigs;
 
-    /*
+    /**
      * Configuration flags for this property.
      *
      * For example, it may store the number of presets that are stored by the
@@ -2483,70 +2483,70 @@
      */
     int32_t configFlags;
 
-    /* Contains additional configuration parameters */
+    /** Contains additional configuration parameters */
     vec<int32_t> configArray;
 
-    /*
+    /**
      * Some properties may require additional information passed over this
      * string. Most properties do not need to set this.
      */
     string configString;
 
-    /*
+    /**
      * Min sample rate in Hz.
      * Must be defined for VehiclePropertyChangeMode::CONTINUOUS
      */
     float minSampleRate;
 
-    /*
+    /**
      * Must be defined for VehiclePropertyChangeMode::CONTINUOUS
      * Max sample rate in Hz.
      */
     float maxSampleRate;
 };
 
-/*
+/**
  * Encapsulates the property name and the associated value. It
  * is used across various API calls to set values, get values or to register for
  * events.
  */
 struct VehiclePropValue {
-    /* Property identifier */
+    /** Property identifier */
     int32_t prop;
 
-    /* Time is elapsed nanoseconds since boot */
+    /** Time is elapsed nanoseconds since boot */
     int64_t timestamp;
 
-    /*
+    /**
      * Area type(s) for non-global property it must be one of the value from
      * VehicleArea* enums or 0 for global properties.
      */
     int32_t areaId;
 
-    /*
+    /**
      * Contains value for a single property. Depending on property data type of
      * this property (VehiclePropetyType) one field of this structure must be filled in.
      */
     struct RawValue {
-        /*
+        /**
          * This is used for properties of types VehiclePropertyType#INT
          * and VehiclePropertyType#INT_VEC
          */
         vec<int32_t> int32Values;
 
-        /*
+        /**
          * This is used for properties of types VehiclePropertyType#FLOAT
          * and VehiclePropertyType#FLOAT_VEC
          */
         vec<float> floatValues;
 
-        /* This is used for properties of type VehiclePropertyType#INT64 */
+        /** This is used for properties of type VehiclePropertyType#INT64 */
         vec<int64_t> int64Values;
 
-        /* This is used for properties of type VehiclePropertyType#BYTES */
+        /** This is used for properties of type VehiclePropertyType#BYTES */
         vec<uint8_t> bytes;
 
-        /* This is used for properties of type VehiclePropertyType#STRING */
+        /** This is used for properties of type VehiclePropertyType#STRING */
         string stringValue;
     };
 
@@ -2556,53 +2556,53 @@
 enum VehicleIgnitionState : int32_t {
     UNDEFINED = 0,
 
-    /* Steering wheel is locked */
+    /** Steering wheel is locked */
     LOCK = 1,
 
-     /*
+     /**
       * Steering wheel is not locked, engine and all accessories are OFF. If
       * car can be in LOCK and OFF state at the same time than HAL must report
       * LOCK state.
       */
     OFF,
 
-    /*
+    /**
      * Typically in this state accessories become available (e.g. radio).
      * Instrument cluster and engine are turned off
      */
     ACC,
 
-    /*
+    /**
      * Ignition is in state ON. Accessories and instrument cluster available,
      * engine might be running or ready to be started.
      */
     ON,
 
-    /* Typically in this state engine is starting (cranking). */
+    /** Typically in this state engine is starting (cranking). */
     START
 };
 
 
-/*
+/**
  * Represent the operation where the current error has happened.
  */
 enum VehiclePropertyOperation : int32_t {
-    /*
+    /**
      * Generic error to this property which is not tied to any operation.
      */
     GENERIC = 0,
 
-    /*
+    /**
      * Error happened while handling property set.
      */
     SET = 1,
 
-    /*
+    /**
      * Error happened while handling property get.
      */
     GET = 2,
 
-    /*
+    /**
      * Error happened while handling property subscription.
      */
     SUBSCRIBE = 3,
@@ -2612,13 +2612,13 @@
 enum SubscribeFlags : int32_t {
   UNDEFINED = 0x0,
 
-  /*
+  /**
    * Subscribe to event that was originated in vehicle HAL
    * (most likely this event came from the vehicle itself).
    */
   HAL_EVENT = 0x1,
 
-  /*
+  /**
    * Use this flag to subscribe on events when IVehicle#set(...) was called by
    * vehicle HAL's client (e.g. Car Service).
    */
@@ -2627,20 +2627,20 @@
   DEFAULT = HAL_EVENT,
 };
 
-/*
+/**
  * Encapsulates information about subscription to vehicle property events.
  */
 struct SubscribeOptions {
-  /* Property to subscribe */
+  /** Property to subscribe */
   int32_t propId;
 
-  /*
+  /**
    * Area ids - this must be a bit mask of areas to subscribe or 0 to subscribe
    * to all areas.
    */
   int32_t vehicleAreas;
 
-  /*
+  /**
    * Sample rate in Hz.
    *
    * Must be provided for properties with
@@ -2651,31 +2651,31 @@
    */
   float sampleRate;
 
-  /* Flags that indicate what kind of events listen to. */
+  /** Flags that indicate what kind of events listen to. */
   SubscribeFlags flags;
 };
 
-/* Error codes used in vehicle HAL interface. */
+/** Error codes used in vehicle HAL interface. */
 enum StatusCode : int32_t {
   OK = 0,
 
-  /* Try again. */
+  /** Try again. */
   TRY_AGAIN = 1,
 
-  /* Invalid argument provided. */
+  /** Invalid argument provided. */
   INVALID_ARG = 2,
 
-  /*
+  /**
    * This code must be returned when device that associated with the vehicle
    * property is not available. For example, when client tries to set HVAC
    * temperature when the whole HVAC unit is turned OFF.
    */
   NOT_AVAILABLE = 3,
 
-  /* Access denied */
+  /** Access denied */
   ACCESS_DENIED = 4,
 
-  /* Something unexpected has happened in Vehicle HAL */
+  /** Something unexpected has happened in Vehicle HAL */
   INTERNAL_ERROR = 5,
 };
 
diff --git a/automotive/vehicle/2.1/IVehicle.hal b/automotive/vehicle/2.1/IVehicle.hal
index 5b6a23f..a22d1e6 100644
--- a/automotive/vehicle/2.1/IVehicle.hal
+++ b/automotive/vehicle/2.1/IVehicle.hal
@@ -18,7 +18,7 @@
 
 import android.hardware.automotive.vehicle@2.0;
 
-/*
+/**
  * New revision of IVehicle interface that supports properties defined in
  * VehicleProperty enum version 2.1.
  *
diff --git a/automotive/vehicle/2.1/types.hal b/automotive/vehicle/2.1/types.hal
index 9b219b2..08dc144 100644
--- a/automotive/vehicle/2.1/types.hal
+++ b/automotive/vehicle/2.1/types.hal
@@ -18,11 +18,11 @@
 
 import android.hardware.automotive.vehicle@2.0;
 
-/*
+/**
  * Extension of VehicleProperty enum declared in Vehicle HAL 2.0
  */
 enum VehicleProperty: @2.0::VehicleProperty {
-    /*
+    /**
      * Reports wheel rotational distance in meters since last wheel tick
      * event
      *
@@ -44,7 +44,7 @@
       | VehiclePropertyType:FLOAT_VEC
       | VehicleArea:GLOBAL),
 
-    /*
+    /**
      * OBD2 Live Sensor Data
      *
      * This property uses COMPLEX data to send a snapshot of the current (live)
@@ -84,7 +84,7 @@
       | VehiclePropertyType:COMPLEX
       | VehicleArea:GLOBAL),
 
-    /*
+    /**
      * OBD2 Freeze Frame Sensor Data
      *
      * This property uses COMPLEX data to send a snapshot of the values of the
@@ -132,7 +132,7 @@
       | VehiclePropertyType:COMPLEX
       | VehicleArea:GLOBAL),
 
-    /*
+    /**
      * OBD2 Freeze Frame Information
      *
      * This property describes the current freeze frames stored in vehicle
@@ -153,7 +153,7 @@
       | VehiclePropertyType:COMPLEX
       | VehicleArea:GLOBAL),
 
-    /*
+    /**
      * OBD2 Freeze Frame Clear
      *
      * This property allows deletion of any of the freeze frames stored in
@@ -175,7 +175,7 @@
       | VehiclePropertyType:COMPLEX
       | VehicleArea:GLOBAL),
 
-    /*
+    /**
      * Vehicle Maps Service (VMS) message
      *
      * This property uses COMPLEX data to communicate vms messages.
@@ -196,7 +196,7 @@
         | VehicleArea:GLOBAL),
 };
 
-/* The status of a fuel system as described by the OBD2 specification. */
+/** The status of a fuel system as described by the OBD2 specification. */
 enum FuelSystemStatus : int32_t {
   OPEN_INSUFFICIENT_ENGINE_TEMPERATURE = 1,
 
@@ -209,14 +209,14 @@
   CLOSED_LOOP_BUT_FEEDBACK_FAULT = 16,
 };
 
-/* Defines which ignition monitors are available to be read. */
+/** Defines which ignition monitors are available to be read. */
 enum IgnitionMonitorKind : int32_t {
   SPARK = 0,
 
   COMPRESSION = 1,
 };
 
-/* These ignition monitors are common to both SPARK and COMPRESSION. */
+/** These ignition monitors are common to both SPARK and COMPRESSION. */
 enum CommonIgnitionMonitors : int32_t {
   COMPONENTS_AVAILABLE = 0x1 << 0,
   COMPONENTS_INCOMPLETE = 0x1 << 1,
@@ -228,7 +228,7 @@
   MISFIRE_INCOMPLETE = 0x1 << 5,
 };
 
-/* Ignition monitors available for SPARK vehicles. */
+/** Ignition monitors available for SPARK vehicles. */
 enum SparkIgnitionMonitors : CommonIgnitionMonitors {
   EGR_AVAILABLE = 0x1 << 6,
   EGR_INCOMPLETE = 0x1 << 7,
@@ -255,7 +255,7 @@
   CATALYST_INCOMPLETE = 0x1 << 21,
 };
 
-/* Ignition monitors only available for COMPRESSION vehicles. */
+/** Ignition monitors only available for COMPRESSION vehicles. */
 enum CompressionIgnitionMonitors : CommonIgnitionMonitors {
   EGR_OR_VVT_AVAILABLE = 0x1 << 6,
   EGR_OR_VVT_INCOMPLETE = 0x1 << 7,
@@ -336,7 +336,7 @@
   BIFUEL_RUNNING_DIESEL = 23,
 };
 
-/*
+/**
  * This enum provides the canonical mapping for sensor properties that have an integer value.
  * The ordering of the values is taken from the OBD2 specification.
  * Some of the properties are represented as an integer mapping to another enum. In those cases
@@ -344,15 +344,15 @@
  * Any value greater than the last reserved index is available to vendors to map their extensions.
  */
 enum Obd2IntegerSensorIndex : int32_t {
-  /* refer to FuelSystemStatus for a description of this value. */
+  /** refer to FuelSystemStatus for a description of this value. */
   FUEL_SYSTEM_STATUS = 0,
 
   MALFUNCTION_INDICATOR_LIGHT_ON = 1,
 
-  /* refer to IgnitionMonitorKind for a description of this value. */
+  /** refer to IgnitionMonitorKind for a description of this value. */
   IGNITION_MONITORS_SUPPORTED = 2,
 
-  /*
+  /**
    * The value of this sensor is a bitmask that specifies whether ignition-specific
    * tests are available and whether they are complete. The semantics of the individual
    * bits in this value are given by, respectively, SparkIgnitionMonitors and
@@ -362,7 +362,7 @@
 
   INTAKE_AIR_TEMPERATURE = 4,
 
-  /* refer to SecondaryAirStatus for a description of this value. */
+  /** refer to SecondaryAirStatus for a description of this value. */
   COMMANDED_SECONDARY_AIR_STATUS = 5,
 
   NUM_OXYGEN_SENSORS_PRESENT = 6,
@@ -395,7 +395,7 @@
 
   MAX_AIR_FLOW_RATE_FROM_MASS_AIR_FLOW_SENSOR = 20,
 
-  /* refer to FuelType for a description of this value. */
+  /** refer to FuelType for a description of this value. */
   FUEL_TYPE = 21,
 
   FUEL_RAIL_ABSOLUTE_PRESSURE = 22,
@@ -421,7 +421,7 @@
   LAST_SYSTEM_INDEX = ENGINE_PERCENT_TORQUE_DATA_POINT4,
 };
 
-/*
+/**
  * This enum provides the canonical mapping for sensor properties that have a floating-point value.
  * The ordering of the values is taken from the OBD2 specification.
  * Any value greater than the last reserved index is available to vendors to map their extensions.
@@ -572,34 +572,34 @@
   LAST_SYSTEM_INDEX = ENGINE_FUEL_RATE,
 };
 
-/*
+/**
  * This enum lists the types of supported VMS messages.
  */
 enum VmsMessageType : int32_t {
-  /* A client subscribes to a layer. */
+  /** A client subscribes to a layer. */
   SUBSCRIBE = 1,
 
-  /* A client unsubscribes from a layer. */
+  /** A client unsubscribes from a layer. */
   UNSUBSCRIBE = 2,
 
-  /* A client publishes a data packet. */
+  /** A client publishes a data packet. */
   DATA = 3,
 };
 
-/*
+/**
  * This enum provides the canonical mapping for VMS properties that have an
  * integer value.
  */
 enum VmsMessageIntegerValuesIndex : int32_t {
-  /* The message type as enumerated by VmsMessageType enum. */
+  /** The message type as enumerated by VmsMessageType enum. */
   VMS_MESSAGE_TYPE = 0,
 
-  /* The layer ID as defined in the vms protocol. */
+  /** The layer ID as defined in the vms protocol. */
   VMS_LAYER_ID = 1,
 
-  /* The version of the VMS layer. */
+  /** The version of the VMS layer. */
   VMS_LAYER_VERSION = 2,
 
-  /* The number of bytes in the payload */
+  /** The number of bytes in the payload */
   VMS_PAYLOAD_SIZE_BYTES = 3,
 };
diff --git a/biometrics/fingerprint/2.1/IBiometricsFingerprint.hal b/biometrics/fingerprint/2.1/IBiometricsFingerprint.hal
index 0b92848..14f3005 100644
--- a/biometrics/fingerprint/2.1/IBiometricsFingerprint.hal
+++ b/biometrics/fingerprint/2.1/IBiometricsFingerprint.hal
@@ -19,7 +19,7 @@
 import IBiometricsFingerprintClientCallback;
 
 interface IBiometricsFingerprint {
-  /*
+  /**
    * Set notification callback:
    * Registers a user function that must receive notifications from the HAL
    * This call must block if the HAL state machine is in busy state until HAL
@@ -32,7 +32,7 @@
   setNotify(IBiometricsFingerprintClientCallback clientCallback)
       generates (uint64_t deviceId);
 
-  /*
+  /**
    * Fingerprint pre-enroll enroll request:
    * Generates a unique token to upper layers to indicate the start of
    * an enrollment transaction. pre-enroll and post-enroll specify
@@ -47,7 +47,7 @@
   @callflow(next={"enroll", "postEnroll"})
   preEnroll() generates (uint64_t authChallenge);
 
-  /*
+  /**
    * Fingerprint enroll request:
    * Switches the HAL state machine to collect and store a new fingerprint
    * template. Switches back as soon as enroll is complete, signalled by
@@ -69,7 +69,7 @@
   enroll(uint8_t[69] hat, uint32_t gid, uint32_t timeoutSec)
       generates (RequestStatus debugErrno);
 
-  /*
+  /**
    * Finishes the enroll operation and invalidates the preEnroll() generated
    * challenge. This must be called at the end of a multi-finger enrollment
    * session to indicate that no more fingers may be added.
@@ -79,7 +79,7 @@
   @callflow(next={"authenticate", "setActiveGroup", "enumerate", "remove"})
   postEnroll() generates (RequestStatus debugErrno);
 
-  /*
+  /**
    * getAuthenticatorId:
    * Returns a token associated with the current fingerprint set. This value
    * must change whenever a new fingerprint is enrolled, thus creating a new
@@ -91,7 +91,7 @@
   @callflow(next={"authenticate"})
   getAuthenticatorId() generates (uint64_t AuthenticatorId);
 
-  /*
+  /**
    * Cancel pending enroll or authenticate, sending FINGERPRINT_ERROR_CANCELED
    * to all running clients. Switches the HAL state machine back to the idle
    * state. Unlike enrollDone() doesn't invalidate the preEnroll() challenge.
@@ -102,7 +102,7 @@
     "setActiveGroup"})
   cancel() generates (RequestStatus debugErrno);
 
-  /*
+  /**
    * Enumerate all the fingerprint templates found in the directory set by
    * setActiveGroup():
    * For each template found a notify() must be called with:
@@ -116,7 +116,7 @@
   @callflow(next={"remove", "enroll", "authenticate", "setActiveGroup"})
   enumerate() generates (RequestStatus debugErrno);
 
-  /*
+  /**
    * Fingerprint remove request:
    * Deletes fingerprint template(s).
    * Works only within the path set by setActiveGroup().
@@ -136,7 +136,7 @@
     "setActiveGroup"})
   remove(uint32_t gid, uint32_t fid) generates (RequestStatus debugErrno);
 
-  /*
+  /**
    * Restricts the HAL operation to a set of fingerprints belonging to a group
    * provided. The caller must provide a path to a storage location within the
    * user's data directory.
@@ -150,7 +150,7 @@
   setActiveGroup(uint32_t gid, string storePath)
       generates (RequestStatus debugErrno);
 
-  /*
+  /**
    * Authenticates an operation identified by operationId
    *
    * @param operationId operation id.
diff --git a/biometrics/fingerprint/2.1/types.hal b/biometrics/fingerprint/2.1/types.hal
index e389773..7402085 100644
--- a/biometrics/fingerprint/2.1/types.hal
+++ b/biometrics/fingerprint/2.1/types.hal
@@ -16,7 +16,7 @@
 
 package android.hardware.biometrics.fingerprint@2.1;
 
-/*
+/**
  * Request status indicates whether the request is accepted by the vendor
  * implementation or not. These values are taken from the errno set,
  * except for the SYS_UNKNOWN
@@ -37,7 +37,7 @@
   SYS_ETIMEDOUT = -110,
 };
 
-/*
+/**
  * Fingerprint errors are meant to tell the framework to terminate the current
  * operation and ask for the user to correct the situation. These will almost
  * always result in messaging and user interaction to correct the problem.
@@ -49,27 +49,27 @@
  * followed by ERROR_CANCELED.
  */
 enum FingerprintError : int32_t {
-  /* Used for testing, no error returned */
+  /** Used for testing, no error returned */
   ERROR_NO_ERROR = 0,
-  /* The hardware has an error that can't be resolved. */
+  /** The hardware has an error that can't be resolved. */
   ERROR_HW_UNAVAILABLE = 1,
-  /* Bad data; operation can't continue */
+  /** Bad data; operation can't continue */
   ERROR_UNABLE_TO_PROCESS = 2,
-  /* The operation has timed out waiting for user input. */
+  /** The operation has timed out waiting for user input. */
   ERROR_TIMEOUT = 3,
-  /* No space available to store a template */
+  /** No space available to store a template */
   ERROR_NO_SPACE = 4,
-  /* The current operation has been canceled */
+  /** The current operation has been canceled */
   ERROR_CANCELED = 5,
-  /* Unable to remove a template */
+  /** Unable to remove a template */
   ERROR_UNABLE_TO_REMOVE = 6,
-  /* The hardware is in lockout due to too many attempts */
+  /** The hardware is in lockout due to too many attempts */
   ERROR_LOCKOUT = 7,
-  /* Vendor-specific error message */
+  /** Vendor-specific error message */
   ERROR_VENDOR = 8
 };
 
-/*
+/**
  * Fingerprint acquisition info is meant as feedback for the current operation.
  * Anything but ACQUIRED_GOOD must be shown to the user as feedback on how to
  * take action on the current operation. For example, ACQUIRED_IMAGER_DIRTY may
@@ -80,41 +80,43 @@
  */
 enum FingerprintAcquiredInfo : int32_t {
   ACQUIRED_GOOD = 0,
-  /* sensor needs more data, i.e. longer swipe. */
+  /** sensor needs more data, i.e. longer swipe. */
   ACQUIRED_PARTIAL = 1,
-  /* image doesn't contain enough detail for recognition*/
+  /**
+   * image doesn't contain enough detail for recognition*/
   ACQUIRED_INSUFFICIENT = 2,
-  /* sensor needs to be cleaned */
+  /** sensor needs to be cleaned */
   ACQUIRED_IMAGER_DIRTY = 3,
-  /* mostly swipe-type sensors; not enough data collected */
+  /** mostly swipe-type sensors; not enough data collected */
   ACQUIRED_TOO_SLOW = 4,
-  /* vendor-specific acquisition messages start here */
+  /** vendor-specific acquisition messages start here */
   ACQUIRED_TOO_FAST = 5,
-  /* vendor-specific acquisition messages */
+  /** vendor-specific acquisition messages */
   ACQUIRED_VENDOR = 6
 };
 
 struct FingerprintFingerId {
-  /* Group ID */
+  /** Group ID */
   uint32_t gid;
-  /* Fingerprint template ID */
+  /** Fingerprint template ID */
   uint32_t fid;
 };
 
 struct FingerprintEnroll {
-  /* Template ID */
+  /** Template ID */
   FingerprintFingerId finger;
-  /* samplesRemaining goes from N (no data collected, but N scans needed)
+  /**
+   * samplesRemaining goes from N (no data collected, but N scans needed)
    * to 0 (no more data is needed to build a template). */
   uint32_t samplesRemaining;
-  /* Vendor specific message. Used for user guidance */
+  /** Vendor specific message. Used for user guidance */
   uint64_t msg;
 };
 
 struct FingerprintIterator {
-  /* Template ID */
+  /** Template ID */
   FingerprintFingerId finger;
-  /* How many templates remain to iterate through */
+  /** How many templates remain to iterate through */
   uint32_t remainingTemplates;
 };
 
@@ -122,18 +124,18 @@
 typedef FingerprintIterator FingerprintRemoved;
 
 struct FingerprintAcquired {
-  /* information about the image */
+  /** information about the image */
   FingerprintAcquiredInfo acquiredInfo;
 };
 
 struct FingerprintAuthenticated {
-  /* Matched template ID */
+  /** Matched template ID */
   FingerprintFingerId finger;
-  /* Authentication result from the keymaster */
+  /** Authentication result from the keymaster */
   uint8_t[69] hat;
 };
 
-/* Run time type identification for the notify() call payload. */
+/** Run time type identification for the notify() call payload. */
 enum FingerprintMsgType : int32_t {
   ERROR = -1,
   ACQUIRED = 1,
diff --git a/broadcastradio/1.0/IBroadcastRadio.hal b/broadcastradio/1.0/IBroadcastRadio.hal
index c7fe62d..f599b10 100644
--- a/broadcastradio/1.0/IBroadcastRadio.hal
+++ b/broadcastradio/1.0/IBroadcastRadio.hal
@@ -21,7 +21,7 @@
 
 interface IBroadcastRadio {
 
-    /*
+    /**
      * Retrieve implementation properties.
      * @return result Operation completion status: OK in case of success,
      *                NOT_INITIALIZED in case of initialization error.
@@ -30,7 +30,7 @@
      */
     getProperties() generates (Result result, Properties properties);
 
-    /*
+    /**
      * Open a tuner interface for the requested configuration.
      * If no other tuner is opened, this will power on the radio hardware.
      * The hardware must be powered down when all tuner interface are released.
diff --git a/broadcastradio/1.0/IBroadcastRadioFactory.hal b/broadcastradio/1.0/IBroadcastRadioFactory.hal
index 82a97c4..ae82b07 100644
--- a/broadcastradio/1.0/IBroadcastRadioFactory.hal
+++ b/broadcastradio/1.0/IBroadcastRadioFactory.hal
@@ -20,7 +20,7 @@
 
 interface IBroadcastRadioFactory {
 
-    /*
+    /**
      * Connects to a broadcast radio HAL module for a given class
      * (AM/FM, Satellite, DAB).
      *
diff --git a/broadcastradio/1.0/ITuner.hal b/broadcastradio/1.0/ITuner.hal
index ae4b284..abbbd7a 100644
--- a/broadcastradio/1.0/ITuner.hal
+++ b/broadcastradio/1.0/ITuner.hal
@@ -20,7 +20,7 @@
 
 interface ITuner {
 
-    /*
+    /**
      * Apply current radio band configuration (band, range, channel spacing...).
      * Automatically cancels pending scan, step or tune.
      * ITunerCallback.configChange() method MUST be called once the
@@ -33,7 +33,7 @@
      */
     setConfiguration(BandConfig config) generates(Result result);
 
-    /*
+    /**
      * Retrieve current radio band configuration.
      * @return result OK if valid configuration is returned,
      *                NOT_INITIALIZED in case of initialization error.
@@ -41,7 +41,7 @@
      */
     getConfiguration() generates(Result result, BandConfig config);
 
-    /*
+    /**
      * Start scanning up to next valid station.
      * Shall be called only when a valid configuration has been applied.
      * Automatically cancels pending scan, step or tune.
@@ -57,7 +57,7 @@
      */
     scan(Direction direction, bool skipSubChannel) generates(Result result);
 
-    /*
+    /**
      * Move one channel spacing up or down.
      * Must be called when a valid configuration has been applied.
      * Automatically cancels pending scan, step or tune.
@@ -73,7 +73,7 @@
      */
     step(Direction direction, bool skipSubChannel) generates(Result result);
 
-    /*
+    /**
      * Tune to specified channel.
      * Must be called when a valid configuration has been applied.
      * Automatically cancels pending scan, step or tune.
@@ -91,7 +91,7 @@
      */
     tune(uint32_t channel, uint32_t subChannel) generates(Result result);
 
-    /*
+    /**
      * Cancel a scan, step or tune operation.
      * Shall be called only while a scan, step or tune operation is pending.
      * ITunerCallback.tuneComplete() MUST NOT be sent by the HAL.
@@ -101,7 +101,7 @@
      */
     cancel() generates(Result result);
 
-    /*
+    /**
      * Retrieve current station information.
      * @return result OK if scan successfully started
      *                NOT_INITIALIZED if another error occurs
diff --git a/broadcastradio/1.0/ITunerCallback.hal b/broadcastradio/1.0/ITunerCallback.hal
index a7e1260..0966ff4 100644
--- a/broadcastradio/1.0/ITunerCallback.hal
+++ b/broadcastradio/1.0/ITunerCallback.hal
@@ -19,13 +19,13 @@
 
 interface ITunerCallback {
 
-    /*
+    /**
      * Method called by the HAL when a HW failure occurs.
      * The framework MUST close the ITuner interface and open a new one.
      */
     oneway hardwareFailure();
 
-    /*
+    /**
      * Method called by the HAL when a new configuration is applied
      * in response to IDevice.openTuner() or ITuner.setConfiguration().
      * @param result OK if the configuration has been applied,
@@ -35,7 +35,7 @@
      */
     oneway configChange(Result result, BandConfig config);
 
-    /*
+    /**
      * Method called by the HAL when a tuning operation completes
      * following a step(), scan() or tune() command.
      * @param result OK if tune succeeded or TIMEOUT in case of time out.
@@ -43,33 +43,33 @@
      */
     oneway tuneComplete(Result result, ProgramInfo info);
 
-    /*
+    /**
      * Method called by the HAL when a frequency switch occurs.
      * @param info A ProgramInfo structure describing the new tuned station.
      */
     oneway afSwitch(ProgramInfo info);
 
-    /*
+    /**
      * Method called by the HAL when the antenna connection state changes.
      * @param connected True if the antenna is connected, false otherwise.
      */
     oneway antennaStateChange(bool connected);
 
-    /*
+    /**
      * Method called by the HAL when a traffic announcement starts or
      * stops.
      * @param active True if the announcement starts, false if it stops.
      */
     oneway trafficAnnouncement(bool active);
 
-    /*
+    /**
      * Method called by the HAL when an emergency announcement starts
      * or stops.
      * @param active True if the announcement starts, false if it stops.
      */
     oneway emergencyAnnouncement(bool active);
 
-    /*
+    /**
      * Method called by the HAL when metadata for current station
      * are updated.
      * @param channel The channel the metadata is associated with.
@@ -77,4 +77,4 @@
      * @param metadata A list of all updated metada.
      */
     oneway newMetadata(uint32_t channel, uint32_t subChannel, vec<MetaData>  metadata);
-};
\ No newline at end of file
+};
diff --git a/broadcastradio/1.0/types.hal b/broadcastradio/1.0/types.hal
index d8b2da3..045231d 100644
--- a/broadcastradio/1.0/types.hal
+++ b/broadcastradio/1.0/types.hal
@@ -24,33 +24,33 @@
     TIMEOUT,
 };
 
-/*
+/**
  * Radio hardware module class. A given radio hardware module HAL is of one
  * class only. The platform can not have more than one hardware module of
  * each class. Current version of the framework only supports RADIO_CLASS_AM_FM.
  */
 enum Class : uint32_t {
-    /* FM (including HD radio) and AM */
+    /** FM (including HD radio) and AM */
     AM_FM = 0,
-    /* Satellite Radio */
+    /** Satellite Radio */
     SAT   = 1,
-    /* Digital Radio (DAB) */
+    /** Digital Radio (DAB) */
     DT    = 2,
 };
 
-/* value for field "type" of radio band described in struct radio_hal_band_config */
+/** value for field "type" of radio band described in struct radio_hal_band_config */
 enum Band : uint32_t {
-    /* Amplitude Modulation band: LW, MW, SW */
+    /** Amplitude Modulation band: LW, MW, SW */
     AM     = 0,
-    /* Frequency Modulation band: FM */
+    /** Frequency Modulation band: FM */
     FM     = 1,
-    /* FM HD Radio / DRM (IBOC) */
+    /** FM HD Radio / DRM (IBOC) */
     FM_HD  = 2,
-    /* AM HD Radio / DRM (IBOC) */
+    /** AM HD Radio / DRM (IBOC) */
     AM_HD  = 3,
 };
 
-/* RDS variant implemented. A struct FmBandConfig can list none or several. */
+/** RDS variant implemented. A struct FmBandConfig can list none or several. */
 enum Rds : uint32_t {
     NONE   = 0,
     WORLD  = (1<<0),
@@ -65,35 +65,35 @@
     D75   = (1<<1),
 };
 
-/* Scanning direction for scan() and step() tuner APIs */
+/** Scanning direction for scan() and step() tuner APIs */
 enum Direction : uint32_t {
     UP,
     DOWN
 };
 
-/* Unique handle allocated to a radio module */
+/** Unique handle allocated to a radio module */
 typedef uint32_t Handle;
 
 
-/* Additional attributes for an FM band configuration */
+/** Additional attributes for an FM band configuration */
 struct FmBandConfig {
-    /* deemphasis variant */
+    /** deemphasis variant */
     Deemphasis deemphasis;
-    /* stereo supported */
+    /** stereo supported */
     bool       stereo;
-    /* RDS variants supported */
+    /** RDS variants supported */
     Rds        rds;
-    /* Traffic Announcement supported */
+    /** Traffic Announcement supported */
     bool       ta;
-    /* Alternate Frequency supported */
+    /** Alternate Frequency supported */
     bool       af;
-    /* Emergency announcements supported */
+    /** Emergency announcements supported */
     bool       ea;
 };
 
-/* Additional attributes for an AM band configuration */
+/** Additional attributes for an AM band configuration */
 struct AmBandConfig {
-    /* Stereo supported */
+    /** Stereo supported */
     bool       stereo;
 };
 
@@ -120,83 +120,84 @@
  * If more than one tuner is supported (num_tuners > 1), only one can be
  * connected to the audio source. */
 struct Properties {
-    /* Class of this module. E.g AM_FM */
+    /** Class of this module. E.g AM_FM */
     Class           classId;
-    /* implementor name */
+    /** implementor name */
     string          implementor;
-    /* product name */
+    /** product name */
     string          product;
-    /* product version */
+    /** product version */
     string          version;
-    /* serial number (for subscription services) */
+    /** serial number (for subscription services) */
     string          serial;
-    /* number of tuners controllable independently */
+    /** number of tuners controllable independently */
     uint32_t        numTuners;
-    /* number of audio sources driven simultaneously */
+    /** number of audio sources driven simultaneously */
     uint32_t        numAudioSources;
-    /* the hardware supports capture of audio source from audio HAL */
+    /** the hardware supports capture of audio source from audio HAL */
     bool            supportsCapture;
-    vec<BandConfig> bands; /* band descriptors */
+    vec<BandConfig> bands; /** band descriptors */
 };
 
 enum MetadataType : int32_t {
     INVALID    = -1,
-    /* Signed 32 bit integer  */
+    /** Signed 32 bit integer  */
     INT        = 0,
-    /* String */
+    /** String */
     TEXT       = 1,
-    /* Raw binary data (icon or art)
+    /**
+     * Raw binary data (icon or art)
        This data must be transparent to the android framework */
     RAW        = 2,
-    /* clock data, see MetaDataClock */
+    /** clock data, see MetaDataClock */
     CLOCK      = 3,
 };
 
 enum MetadataKey : int32_t {
     INVALID      = -1,
-    /* RDS PI                 - string  */
+    /** RDS PI                 - string  */
     RDS_PI       = 0,
-    /* RDS PS                 - string */
+    /** RDS PS                 - string */
     RDS_PS       = 1,
-    /* RDS PTY                - int32_t  */
+    /** RDS PTY                - int32_t  */
     RDS_PTY      = 2,
-    /* RBDS PTY               - int32_t  */
+    /** RBDS PTY               - int32_t  */
     RBDS_PTY     = 3,
-    /* RDS RT                 - string  */
+    /** RDS RT                 - string  */
     RDS_RT       = 4,
-    /* Song title             - string  */
+    /** Song title             - string  */
     TITLE        = 5,
-    /* Artist name            - string  */
+    /** Artist name            - string  */
     ARTIST       = 6,
-    /* Album name             - string  */
+    /** Album name             - string  */
     ALBUM        = 7,
-    /* Musical genre          - string  */
+    /** Musical genre          - string  */
     GENRE        = 8,
-    /* Station icon           - raw  */
+    /** Station icon           - raw  */
     ICON         = 9,
-    /* Album art              - raw  */
+    /** Album art              - raw  */
     ART          = 10,
-    /* Clock                  - MetaDataClock */
+    /** Clock                  - MetaDataClock */
     CLOCK        = 11,
 };
 
 struct MetaDataClock {
-     /* Seconds since epoch at GMT + 0. */
+     /** Seconds since epoch at GMT + 0. */
     uint64_t utcSecondsSinceEpoch;
-    /* Minutes offset from the GMT. */
+    /** Minutes offset from the GMT. */
     int32_t timezoneOffsetInMinutes;
 };
 
 struct MetaData {
     MetadataType type;
     MetadataKey key;
-    /* Value used for type MetadataType.INT */
+    /** Value used for type MetadataType.INT */
     int32_t intValue;
-    /* Value used for type MetadataType.CLOCK */
+    /** Value used for type MetadataType.CLOCK */
     MetaDataClock  clockValue;
-    /* Value used for type MetadataType.TEXT */
+    /** Value used for type MetadataType.TEXT */
     string  stringValue;
-    /* Value used for type MetadataType.RAW */
+    /** Value used for type MetadataType.RAW */
     vec<uint8_t> rawValue;
 };
 
@@ -205,12 +206,12 @@
  * Contains information on currently tuned channel.
  */
 struct ProgramInfo {
-    uint32_t     channel;   /* current channel. (e.g kHz for band type AM_FM) */
-    uint32_t     subChannel; /* current sub channel. (FM_HD) */
-    bool         tuned;     /* tuned to a program or not */
-    bool         stereo;    /* program is stereo or not */
-    bool         digital;   /* digital program or not (e.g HD Radio program) */
-    uint32_t     signalStrength; /* signal strength from 0 to 100 */
-    vec<MetaData> metadata; /* non empty if meta data are present (e.g PTY, song title ...) */
+    uint32_t     channel;   /** current channel. (e.g kHz for band type AM_FM) */
+    uint32_t     subChannel; /** current sub channel. (FM_HD) */
+    bool         tuned;     /** tuned to a program or not */
+    bool         stereo;    /** program is stereo or not */
+    bool         digital;   /** digital program or not (e.g HD Radio program) */
+    uint32_t     signalStrength; /** signal strength from 0 to 100 */
+    vec<MetaData> metadata; /** non empty if meta data are present (e.g PTY, song title ...) */
 };
 
diff --git a/broadcastradio/1.1/IBroadcastRadio.hal b/broadcastradio/1.1/IBroadcastRadio.hal
index a6347c7..dd37d49 100644
--- a/broadcastradio/1.1/IBroadcastRadio.hal
+++ b/broadcastradio/1.1/IBroadcastRadio.hal
@@ -20,7 +20,7 @@
 
 interface IBroadcastRadio extends @1.0::IBroadcastRadio {
 
-    /*
+    /**
      * Retrieve implementation properties.
      * @return properties A Properties structure containing implementation
      *                    description and capabilities.
diff --git a/broadcastradio/1.1/ITunerCallback.hal b/broadcastradio/1.1/ITunerCallback.hal
index 1ea57e9..07ce984 100644
--- a/broadcastradio/1.1/ITunerCallback.hal
+++ b/broadcastradio/1.1/ITunerCallback.hal
@@ -25,7 +25,7 @@
  * ones, to avoid receiving a callback twice.
  */
 interface ITunerCallback extends @1.0::ITunerCallback {
-    /*
+    /**
      * Method called by the HAL when a tuning operation completes
      * following a step(), scan() or tune() command.
      * @param result OK if tune succeeded or TIMEOUT in case of time out.
@@ -33,7 +33,7 @@
      */
     oneway tuneComplete_1_1(Result result, ProgramInfo info);
 
-    /*
+    /**
      * Method called by the HAL when a frequency switch occurs.
      * @param info A ProgramInfo structure describing the new tuned station.
      */
diff --git a/camera/device/1.0/types.hal b/camera/device/1.0/types.hal
index b32c938..bf632d1 100644
--- a/camera/device/1.0/types.hal
+++ b/camera/device/1.0/types.hal
@@ -249,7 +249,7 @@
     vec<CameraFace> faces;
 };
 
-/*
+/**
  * A simple integer handle to use to reference a particular memory buffer
  * between the HAL and the framework.
  */
diff --git a/camera/device/3.2/types.hal b/camera/device/3.2/types.hal
index ba5bbe0..fd75528 100644
--- a/camera/device/3.2/types.hal
+++ b/camera/device/3.2/types.hal
@@ -68,16 +68,16 @@
  * The required counterclockwise rotation of camera stream.
  */
 enum StreamRotation : uint32_t  {
-    /* No rotation */
+    /** No rotation */
     ROTATION_0 = 0,
 
-    /* Rotate by 90 degree counterclockwise */
+    /** Rotate by 90 degree counterclockwise */
     ROTATION_90 = 1,
 
-    /* Rotate by 180 degree counterclockwise */
+    /** Rotate by 180 degree counterclockwise */
     ROTATION_180 = 2,
 
-    /* Rotate by 270 degree counterclockwise */
+    /** Rotate by 270 degree counterclockwise */
     ROTATION_270 = 3
 
 };
diff --git a/configstore/1.0/ISurfaceFlingerConfigs.hal b/configstore/1.0/ISurfaceFlingerConfigs.hal
index 3b5c1b0..dcc9bbb 100644
--- a/configstore/1.0/ISurfaceFlingerConfigs.hal
+++ b/configstore/1.0/ISurfaceFlingerConfigs.hal
@@ -16,7 +16,7 @@
 package android.hardware.configstore@1.0;
 
 interface ISurfaceFlingerConfigs {
-    /*
+    /**
      * The following two methods define (respectively):
      *
      * - The phase offset between hardware vsync and when apps are woken up by the
@@ -40,13 +40,13 @@
     vsyncEventPhaseOffsetNs() generates (OptionalInt64 value);
     vsyncSfEventPhaseOffsetNs() generates (OptionalInt64 value);
 
-    /*
+    /**
      * Instruct the Render Engine to use EGL_IMG_context_priority hint if
      * availabe.
      */
     useContextPriority() generates(OptionalBool value);
 
-    /*
+    /**
      * hasWideColorDisplay indicates that the device has
      * or can support a wide-color display, e.g. color space
      * greater than sRGB. Typical display may have same
@@ -60,7 +60,7 @@
      */
     hasWideColorDisplay() generates (OptionalBool value);
 
-    /*
+    /**
      * hwHdrDisplay indicates that the device has
      * or can support an HDR (High Dynamic Range) display.
      * Typically an HDR display is also wide-color.
@@ -69,13 +69,13 @@
      */
     hasHDRDisplay() generates (OptionalBool value);
 
-    /*
+    /**
      * Specify the offset in nanoseconds to add to vsync time when timestamping
      * present fences.
      */
     presentTimeOffsetFromVSyncNs() generates(OptionalInt64 value);
 
-    /*
+    /**
      * Some hardware can do RGB->YUV conversion more efficiently in hardware
      * controlled by HWC than in hardware controlled by the video encoder.
      * This instruct VirtualDisplaySurface to use HWC for such conversion on
@@ -83,19 +83,19 @@
      */
     useHwcForRGBtoYUV() generates(OptionalBool value);
 
-    /*
+    /**
      *  Maximum dimension supported by HWC for virtual display.
      *  Must be equals to min(max_width, max_height).
      */
     maxVirtualDisplaySize() generates (OptionalUInt64 value);
 
-    /*
+    /**
      * Indicates if Sync framework is available. Sync framework provides fence
      * mechanism which significantly reduces buffer processing latency.
      */
     hasSyncFramework() generates(OptionalBool value);
 
-    /*
+    /**
      * Return true if surface flinger should use vr flinger for compatible vr
      * apps, false otherwise. Devices that will never be running vr apps should
      * return false to avoid extra resource usage. Daydream ready devices must
@@ -103,7 +103,7 @@
      */
     useVrFlinger() generates (OptionalBool value);
 
-    /*
+    /**
      * Controls the number of buffers SurfaceFlinger will allocate for use in
      * FramebufferSurface.
      */
diff --git a/contexthub/1.0/IContexthub.hal b/contexthub/1.0/IContexthub.hal
index c0928d5..8dccd67 100644
--- a/contexthub/1.0/IContexthub.hal
+++ b/contexthub/1.0/IContexthub.hal
@@ -18,7 +18,7 @@
 
 import IContexthubCallback;
 
-/*
+/**
  * The Context Hub HAL provides an interface to a separate low-power processing
  * domain that has direct access to contextual information, such as sensors.
  * Native applications that run within a context hub are known as nanoapps, and
@@ -26,14 +26,14 @@
  * standardized via the CHRE API, defined elsewhere.
  */
 interface IContexthub {
-    /*
+    /**
      * Enumerate all available context hubs on the system.
      *
      * @return hubs list of hubs on this system.
      */
     getHubs() generates (vec<ContextHub> hubs);
 
-    /*
+    /**
      * Register a callback for the HAL implementation to send asynchronous
      * messages to the service from a context hub. There can be a maximum of
      * one callback registered with the HAL. A call to this function when a
diff --git a/contexthub/1.0/IContexthubCallback.hal b/contexthub/1.0/IContexthubCallback.hal
index 9a6db4c..264f84c 100644
--- a/contexthub/1.0/IContexthubCallback.hal
+++ b/contexthub/1.0/IContexthubCallback.hal
@@ -17,7 +17,7 @@
 package android.hardware.contexthub@1.0;
 
 interface IContexthubCallback {
-    /*
+    /**
      * This callback is passed by the Contexthub service to the HAL
      * implementation to allow the HAL to send asynchronous messages back
      * to the service and registered clients of the ContextHub service.
@@ -27,7 +27,7 @@
      */
      handleClientMsg(ContextHubMsg msg);
 
-    /*
+    /**
      * This callback is passed by the Contexthub service to the HAL
      * implementation to allow the HAL to send the response for a
      * transaction.
@@ -39,7 +39,7 @@
      */
      handleTxnResult(uint32_t txnId, TransactionResult result);
 
-    /*
+    /**
      * This callback is passed by the Contexthub service to the HAL
      * implementation to allow the HAL to send an asynchronous event
      * to the ContextHub service.
@@ -49,7 +49,7 @@
      */
      handleHubEvent(AsyncEventType evt);
 
-    /*
+    /**
      * This callback is passed by the Contexthub service to the HAL
      * implementation to allow the HAL to send a notification to the service
      * that a nanp-app has aborted.
@@ -63,7 +63,7 @@
      */
      handleAppAbort(uint64_t appId, uint32_t abortCode);
 
-     /*
+     /**
       * This callback is passed by the Contexthub service to the HAL
       * implementation to allow the HAL to send information about the
       * currently loaded and active nanoapps on the hub.
diff --git a/dumpstate/1.0/IDumpstateDevice.hal b/dumpstate/1.0/IDumpstateDevice.hal
index fec3eb4..206c139 100644
--- a/dumpstate/1.0/IDumpstateDevice.hal
+++ b/dumpstate/1.0/IDumpstateDevice.hal
@@ -17,7 +17,7 @@
 package android.hardware.dumpstate@1.0;
 
 interface IDumpstateDevice {
-    /*
+    /**
      * Dumps device-specific state into the given file descriptor.
      */
     dumpstateBoard(handle h);
diff --git a/gatekeeper/1.0/IGatekeeper.hal b/gatekeeper/1.0/IGatekeeper.hal
index c193477..59dd7d1 100644
--- a/gatekeeper/1.0/IGatekeeper.hal
+++ b/gatekeeper/1.0/IGatekeeper.hal
@@ -91,7 +91,7 @@
        vec<uint8_t> providedPassword)
     generates (GatekeeperResponse response);
 
-/*
+/**
  * Deletes the enrolledPasswordHandle associated with the uid. Once deleted
  * the user cannot be verified anymore.
  * This is an optional method.
@@ -107,7 +107,7 @@
  */
 deleteUser(uint32_t uid) generates (GatekeeperResponse response);
 
-/*
+/**
  * Deletes all the enrolled_password_handles for all uid's. Once called,
  * no users must be enrolled on the device.
  * This is an optional method.
diff --git a/gatekeeper/1.0/types.hal b/gatekeeper/1.0/types.hal
index 59076e0..f243675 100644
--- a/gatekeeper/1.0/types.hal
+++ b/gatekeeper/1.0/types.hal
@@ -31,12 +31,13 @@
  * Gatekeeper response to any/all requests has this structure as mandatory part
  */
 struct GatekeeperResponse {
-    /* request completion status */
+    /** request completion status */
     GatekeeperStatusCode code;
-    /* retry timeout in ms, if code == ERROR_RETRY_TIMEOUT
+    /**
+     * retry timeout in ms, if code == ERROR_RETRY_TIMEOUT
      * otherwise unused (0)
      */
     uint32_t timeout;
-    /* optional crypto blob. Opaque to Android system. */
+    /** optional crypto blob. Opaque to Android system. */
     vec<uint8_t> data;
 };
diff --git a/gnss/1.0/IAGnss.hal b/gnss/1.0/IAGnss.hal
index b8f5746..fb0f606 100644
--- a/gnss/1.0/IAGnss.hal
+++ b/gnss/1.0/IAGnss.hal
@@ -18,7 +18,7 @@
 
 import IAGnssCallback;
 
-/*
+/**
  * Extended interface for AGNSS support.
  */
 interface IAGnss {
@@ -30,7 +30,7 @@
         IPV4V6   = 3
     };
 
-    /*
+    /**
      * Opens the AGNSS interface and provides the callback routines to the
      * implementation of this interface.
      *
@@ -38,21 +38,21 @@
      */
     setCallback(IAGnssCallback callback);
 
-    /*
+    /**
      * Notifies that the AGNSS data connection has been closed.
      *
      * @return success True if the operation is successful.
      */
     dataConnClosed() generates (bool success);
 
-    /*
+    /**
      * Notifies that a data connection is not available for AGNSS.
      *
      * @return success True if the operation is successful.
      */
     dataConnFailed() generates (bool success);
 
-    /*
+    /**
      * Sets the hostname and port for the AGNSS server.
      *
      * @param type Specifies if SUPL or C2K.
@@ -64,7 +64,7 @@
     setServer(AGnssType type, string hostname, int32_t port)
         generates (bool success);
 
-    /*
+    /**
      * Notifies that a data connection is available and sets the name of the
      * APN, and its IP type, to be used for SUPL connections.
      *
diff --git a/gnss/1.0/IAGnssCallback.hal b/gnss/1.0/IAGnssCallback.hal
index fe2e101..81f1689 100644
--- a/gnss/1.0/IAGnssCallback.hal
+++ b/gnss/1.0/IAGnssCallback.hal
@@ -39,39 +39,39 @@
         AGNSS_DATA_CONN_FAILED   = 5
     };
 
-    /*
+    /**
      * Represents the status of AGNSS augmented to support IPv4.
      */
     @export(name="", value_prefix="GPS_")
     struct AGnssStatusIpV4 {
         AGnssType type;
         AGnssStatusValue status;
-        /*
+        /**
          * 32-bit IPv4 address.
          */
         uint32_t ipV4Addr;
     };
 
-    /*
+    /**
      * Represents the status of AGNSS augmented to support IPv6.
      */
     struct AGnssStatusIpV6 {
         AGnssType type;
         AGnssStatusValue status;
-        /*
+        /**
          * 128-bit IPv6 address.
          */
         uint8_t[16] ipV6Addr;
     };
 
-    /*
+    /**
      * Callback with AGNSS(IpV4) status information.
      *
      * @param status Will be of type AGnssStatusIpV4.
      */
     agnssStatusIpV4Cb(AGnssStatusIpV4 status);
 
-    /*
+    /**
      * Callback with AGNSS(IpV6) status information.
      *
      * @param status Will be of type AGnssStatusIpV6.
diff --git a/gnss/1.0/IAGnssRil.hal b/gnss/1.0/IAGnssRil.hal
index 6292273..6f91f7f 100644
--- a/gnss/1.0/IAGnssRil.hal
+++ b/gnss/1.0/IAGnssRil.hal
@@ -18,7 +18,7 @@
 
 import IAGnssRilCallback;
 
-/*
+/**
  * Extended interface for AGNSS RIL support. An Assisted GNSS Radio Interface
  * Layer interface allows the GNSS chipset to request radio interface layer
  * information from Android platform. Examples of such information are reference
@@ -50,41 +50,42 @@
         LTE_CELLID   = 4,
     };
 
-    /* CellID for 2G, 3G and LTE, used in AGNSS. */
+    /** CellID for 2G, 3G and LTE, used in AGNSS. */
     struct AGnssRefLocationCellID {
         AGnssRefLocationType type;
 
-        /* Mobile Country Code. */
+        /** Mobile Country Code. */
         uint16_t mcc;
 
-        /* Mobile Network Code .*/
+        /**
+         * Mobile Network Code .*/
         uint16_t mnc;
 
-        /*
+        /**
          * Location Area Code in 2G, 3G and LTE. In 3G lac is discarded. In LTE,
          * lac is populated with tac, to ensure that we don't break old clients that
          * might rely in the old (wrong) behavior.
          */
         uint16_t lac;
 
-        /* Cell id in 2G. Utran Cell id in 3G. Cell Global Id EUTRA in LTE. */
+        /** Cell id in 2G. Utran Cell id in 3G. Cell Global Id EUTRA in LTE. */
         uint32_t cid;
 
-        /* Tracking Area Code in LTE. */
+        /** Tracking Area Code in LTE. */
         uint16_t tac;
 
-        /* Physical Cell id in LTE (not used in 2G and 3G) */
+        /** Physical Cell id in LTE (not used in 2G and 3G) */
         uint16_t pcid;
     };
 
-    /* Represents ref locations */
+    /** Represents ref locations */
     struct AGnssRefLocation {
         AGnssRefLocationType type;
 
         AGnssRefLocationCellID cellID;
     };
 
-    /*
+    /**
      * Opens the AGNSS interface and provides the callback routines
      * to the implementation of this interface.
      *
@@ -92,14 +93,14 @@
      */
     setCallback(IAGnssRilCallback callback);
 
-    /*
+    /**
      * Sets the reference location.
      *
      * @param agnssReflocation AGNSS reference location CellID.
      */
     setRefLocation(AGnssRefLocation agnssReflocation);
 
-    /*
+    /**
      * Sets the SET ID.
      *
      * @param type Must be populated with either IMSI or MSISDN or NONE.
@@ -114,7 +115,7 @@
      */
     setSetId(SetIDType type, string setid) generates (bool success);
 
-    /*
+    /**
      * Notify GNSS of network status changes.
      *
      * @param connected Indicates whether network connectivity exists and
@@ -129,7 +130,7 @@
     updateNetworkState(bool connected, NetworkType type, bool roaming)
         generates (bool success);
 
-    /*
+    /**
      * Notify GNSS of network status changes.
      *
      * @param available Indicates whether network connectivity is available.
diff --git a/gnss/1.0/IAGnssRilCallback.hal b/gnss/1.0/IAGnssRilCallback.hal
index 2d64e54..d2a1a3f 100644
--- a/gnss/1.0/IAGnssRilCallback.hal
+++ b/gnss/1.0/IAGnssRilCallback.hal
@@ -16,26 +16,26 @@
 
 package android.hardware.gnss@1.0;
 
-/*
+/**
  * Callback for IAGnssRil interface. Used to request SET ID and
  * Reference Location.
  */
 interface IAGnssRilCallback {
-    /* Kinds of SET ID that can be requested */
+    /** Kinds of SET ID that can be requested */
     @export(name="", value_prefix="AGPS_RIL_REQUEST_SETID_")
     enum ID : uint32_t {
         IMSI    = 1 << 0L,
         MSISDN  = 1 << 1L,
     };
 
-    /*
+    /**
      * The Hal uses this API to request a SET ID.
      *
      * @param setIdflag Specifies the kind of SET ID that is required by the HAL.
      */
     requestSetIdCb(bitfield<ID> setIdflag);
 
-    /*
+    /**
      * The Hal uses this API to request a reference location.
      *
      */
diff --git a/gnss/1.0/IGnss.hal b/gnss/1.0/IGnss.hal
index 5cde79e..602c615 100644
--- a/gnss/1.0/IGnss.hal
+++ b/gnss/1.0/IGnss.hal
@@ -28,23 +28,23 @@
 import IGnssNi;
 import IGnssXtra;
 
-/* Represents the standard GNSS (Global Navigation Satellite System) interface. */
+/** Represents the standard GNSS (Global Navigation Satellite System) interface. */
 interface IGnss {
-    /* Requested operational mode for GNSS operation. */
+    /** Requested operational mode for GNSS operation. */
     @export(name="", value_prefix="GPS_POSITION_MODE_")
     enum GnssPositionMode : uint8_t {
         /** Mode for running GNSS standalone (no assistance). */
         STANDALONE  = 0,
         /** AGNSS MS-Based mode. */
         MS_BASED    = 1,
-        /*
+        /**
          * AGNSS MS-Assisted mode. This mode is not maintained by the platform anymore.
          * It is strongly recommended to use MS_BASED instead.
          */
         MS_ASSISTED = 2,
     };
 
-    /* Requested recurrence mode for GNSS operation. */
+    /** Requested recurrence mode for GNSS operation. */
     @export(name="", value_prefix="GPS_POSITION_")
     enum GnssPositionRecurrence : uint32_t {
         /** Receive GNSS fixes on a recurring basis at a specified period. */
@@ -53,7 +53,7 @@
         RECURRENCE_SINGLE    = 1
     };
 
-    /*
+    /**
      * Flags used to specify which aiding data to delete when calling
      * deleteAidingData().
      */
@@ -74,7 +74,7 @@
         DELETE_ALL          = 0xFFFF
     };
 
-    /*
+    /**
      * Opens the interface and provides the callback routines
      * to the implementation of this interface.
      *
@@ -84,7 +84,7 @@
      */
     setCallback(IGnssCallback callback) generates (bool success);
 
-    /*
+    /**
      * Starts a location output stream using the IGnssCallback
      * gnssLocationCb(), following the settings from the most recent call to
      * setPositionMode().
@@ -96,19 +96,19 @@
      */
     start() generates (bool success);
 
-    /*
+    /**
      * Stops the location output stream.
      *
      * @return success Returns true on success.
      */
     stop() generates (bool success);
 
-    /*
+    /**
      * Closes the interface.
      */
     cleanup();
 
-    /*
+    /**
      * Injects the current time.
      *
      * @param timeMs This is the UTC time received from the NTP server, its value
@@ -124,7 +124,7 @@
     injectTime(GnssUtcTime timeMs, int64_t timeReferenceMs, int32_t uncertaintyMs)
         generates (bool success);
 
-    /*
+    /**
      * Injects current location from another location provider (typically cell
      * ID).
      *
@@ -137,7 +137,7 @@
     injectLocation(double latitudeDegrees, double longitudeDegrees, float accuracyMeters)
         generates (bool success);
 
-    /*
+    /**
      * Specifies that the next call to start will not use the
      * information defined in the flags. GnssAidingData value of DELETE_ALL is
      * passed for a cold start.
@@ -146,7 +146,7 @@
      */
     deleteAidingData(GnssAidingData aidingDataFlags);
 
-    /*
+    /**
      * Sets the GnssPositionMode parameter,its associated recurrence value,
      * the time between fixes,requested fix accuracy and time to first fix.
      *
@@ -165,70 +165,70 @@
                     uint32_t preferredTimeMs)
         generates (bool success);
 
-    /*
+    /**
      * This method returns the IAGnssRil Interface.
      *
      * @return aGnssRilIface Handle to the IAGnssRil interface.
      */
     getExtensionAGnssRil() generates (IAGnssRil aGnssRilIface);
 
-    /*
+    /**
      * This method returns the IGnssGeofencing Interface.
      *
      * @return gnssGeofencingIface Handle to the IGnssGeofencing interface.
      */
     getExtensionGnssGeofencing() generates(IGnssGeofencing gnssGeofencingIface);
 
-    /*
+    /**
      * This method returns the IAGnss Interface.
      *
      * @return aGnssIface Handle to the IAGnss interface.
      */
     getExtensionAGnss() generates (IAGnss aGnssIface);
 
-    /*
+    /**
      * This method returns the IGnssNi interface.
      *
      * @return gnssNiIface Handle to the IGnssNi interface.
      */
     getExtensionGnssNi() generates (IGnssNi gnssNiIface);
 
-    /*
+    /**
      * This method returns the IGnssMeasurement interface.
      *
      * @return gnssMeasurementIface Handle to the IGnssMeasurement interface.
      */
     getExtensionGnssMeasurement() generates (IGnssMeasurement gnssMeasurementIface);
 
-    /*
+    /**
      * This method returns the IGnssNavigationMessage interface.
      *
      * @return gnssNavigationIface gnssNavigationIface to the IGnssNavigationMessage interface.
      */
     getExtensionGnssNavigationMessage() generates (IGnssNavigationMessage gnssNavigationIface);
 
-    /*
+    /**
      * This method returns the IGnssXtra interface.
      *
      * @return xtraIface Handle to the IGnssXtra interface.
      */
     getExtensionXtra() generates (IGnssXtra xtraIface);
 
-    /*
+    /**
      * This method returns the IGnssConfiguration interface.
      *
      * @return gnssConfigIface Handle to the IGnssConfiguration interface.
      */
     getExtensionGnssConfiguration() generates (IGnssConfiguration gnssConfigIface);
 
-    /*
+    /**
      * This method returns the IGnssDebug interface.
      *
      * @return debugIface Handle to the IGnssDebug interface.
      */
     getExtensionGnssDebug() generates (IGnssDebug debugIface);
 
-    /*
+    /**
      * This method returns the IGnssBatching interface.
      *
      * @return batchingIface Handle to the IGnssBatching interface.
diff --git a/gnss/1.0/IGnssBatching.hal b/gnss/1.0/IGnssBatching.hal
index 6f2dde6..a5e01e3 100644
--- a/gnss/1.0/IGnssBatching.hal
+++ b/gnss/1.0/IGnssBatching.hal
@@ -18,7 +18,7 @@
 
 import IGnssBatchingCallback;
 
-/*
+/**
  * Extended interface for GNSS Batching support.
  *
  * If this interface is supported, this batching request must be able to run in
@@ -39,12 +39,12 @@
  */
 
 interface IGnssBatching {
-    /*
+    /**
      * Enum which holds the bit masks for batching control.
      */
     @export(name="", value_prefix="FLP_BATCH_")
     enum Flag : uint8_t {
-        /*
+        /**
          * If this flag is set, the hardware implementation
          * must wake up the application processor when the FIFO is full, and
          * call IGnssBatchingCallback to return the locations.
@@ -56,19 +56,19 @@
     };
 
     struct Options {
-        /*
+        /**
          * Time interval between samples in the location batch, in nano
          * seconds.
          */
         int64_t periodNanos;
 
-        /*
+        /**
          * Flags controlling how batching should behave.
          */
         bitfield<Flag> flags;
     };
 
-    /*
+    /**
      * Opens the interface and provides the callback routines
      * to the implementation of this interface.
      *
@@ -78,7 +78,7 @@
      */
     init(IGnssBatchingCallback callback) generates (bool success);
 
-    /*
+    /**
      * Return the batch size (in number of GnssLocation objects)
      * available in this hardware implementation.
      *
@@ -93,7 +93,7 @@
      */
     getBatchSize() generates (uint16_t batchSize);
 
-    /*
+    /**
      * Start batching locations. This API is primarily used when the AP is
      * asleep and the device can batch locations in the hardware.
      *
diff --git a/gnss/1.0/IGnssBatchingCallback.hal b/gnss/1.0/IGnssBatchingCallback.hal
index a8f4b88..5697cc4 100644
--- a/gnss/1.0/IGnssBatchingCallback.hal
+++ b/gnss/1.0/IGnssBatchingCallback.hal
@@ -16,9 +16,9 @@
 
 package android.hardware.gnss@1.0;
 
-/* The callback interface to report measurements from the HAL. */
+/** The callback interface to report measurements from the HAL. */
 interface IGnssBatchingCallback {
-    /*
+    /**
      * Called when a batch of locations is output, by various means, including
      * a flush request, as well as the buffer becoming full (if appropriate option
      * is set.)
diff --git a/gnss/1.0/IGnssCallback.hal b/gnss/1.0/IGnssCallback.hal
index 0c3b9f0..89e5e0e 100644
--- a/gnss/1.0/IGnssCallback.hal
+++ b/gnss/1.0/IGnssCallback.hal
@@ -16,16 +16,16 @@
 
 package android.hardware.gnss@1.0;
 
-/*
+/**
  * The interface is required for the HAL to communicate certain information
  * like status and location info back to the platform, the platform implements
  * the interfaces and passes a handle to the HAL.
  */
 interface IGnssCallback {
-    /* Flags for the gnssSetCapabilities callback. */
+    /** Flags for the gnssSetCapabilities callback. */
     @export(name="", value_prefix="GPS_CAPABILITY_")
     enum Capabilities : uint32_t {
-        /*
+        /**
          * GNSS HAL schedules fixes for RECURRENCE_PERIODIC mode.
          * If this is not set, then the framework will use 1000ms for
          * minInterval and will call start() and stop() to schedule the GNSS.
@@ -47,7 +47,7 @@
         NAV_MESSAGES                    = 1 << 7
     };
 
-    /* GNSS status event values. */
+    /** GNSS status event values. */
     @export(name="", value_prefix="GPS_STATUS_")
     enum GnssStatusValue : uint8_t {
         /** GNSS status unknown. */
@@ -62,7 +62,7 @@
         ENGINE_OFF     = 4
     };
 
-    /*
+    /**
      * Flags that indicate information about the satellite
      */
     @export(name="", value_prefix="GNSS_SV_FLAGS_")
@@ -75,7 +75,7 @@
     };
 
     struct GnssSvInfo {
-        /*
+        /**
          * Pseudo-random number for the SV, or FCN/OSN number for Glonass. The
          * distinction is made by looking at constellation field. Values must be
          * in the range of:
@@ -93,12 +93,12 @@
          */
         int16_t svid;
 
-        /*
+        /**
          * Defines the constellation of the given SV.
          */
         GnssConstellationType constellation;
 
-        /*
+        /**
          * Carrier-to-noise density in dB-Hz, typically in the range [0, 63].
          * It contains the measured C/N0 value for the signal at the antenna port.
          *
@@ -112,7 +112,7 @@
         /** Azimuth of SV in degrees. */
         float azimuthDegrees;
 
-        /*
+        /**
          * Carrier frequency of the signal tracked, for example it can be the
          * GPS central frequency for L1 = 1575.45 MHz, or L2 = 1227.60 MHz, L5 =
          * 1176.45 MHz, varying GLO channels, etc. If the field is not set, it
@@ -130,22 +130,22 @@
          */
         float carrierFrequencyHz;
 
-        /*
+        /**
          * Contains additional data about the given SV.
          */
         bitfield<GnssSvFlags> svFlag;
     };
 
-    /*
+    /**
      * Represents SV status.
      */
     struct GnssSvStatus {
-        /*
+        /**
          * Number of GNSS SVs currently visible, refers to the SVs stored in sv_list
          */
         uint32_t numSvs;
 
-        /*
+        /**
          * Pointer to an array of SVs information for all GNSS constellations,
          * except GNSS, which is reported using svList
          */
@@ -153,26 +153,26 @@
 
     };
 
-    /*
+    /**
      * Called when a GNSS location is available.
      *
      * @param location Location information from HAL.
      */
     gnssLocationCb(GnssLocation location);
 
-    /*
+    /**
      * Called to communicate the status of the GNSS engine.
      *
      * @param status Status information from HAL.
      */
     gnssStatusCb(GnssStatusValue status);
 
-    /*
+    /**
      * @param svInfo SV status information from HAL.
      */
     gnssSvStatusCb(GnssSvStatus svInfo);
 
-    /*
+    /**
      * Called when NMEA data is available.
      * Callback for reporting NMEA sentences.
      *
@@ -195,7 +195,7 @@
      */
     gnssNmeaCb(GnssUtcTime timestamp, string nmea);
 
-    /*
+    /**
      * Callback to inform framework of the GNSS engine's capabilities.
      *
      * @param capabilities Capability parameter is a bit field of
@@ -203,7 +203,7 @@
      */
     gnssSetCapabilitesCb(bitfield<Capabilities> capabilities);
 
-    /*
+    /**
      * Callback utility for acquiring the GNSS wakelock. This can be used to prevent
      * the CPU from suspending while handling GNSS events.
      */
@@ -215,7 +215,7 @@
     /** Callback for requesting NTP time */
     gnssRequestTimeCb();
 
-    /*
+    /**
      * Provides information about how new the underlying GPS/GNSS hardware and
      * software is.
      *
@@ -228,14 +228,14 @@
      * GnssMeasurement support will be verified.
      */
     struct GnssSystemInfo{
-        /*
+        /**
          * year in which the last update was made to the underlying hardware/firmware
          * used to capture GNSS signals, e.g. 2016
          */
         uint16_t yearOfHw;
     };
 
-    /*
+    /**
      * Callback to inform framework of the engine's hardware version information.
      *
      * @param info GnssSystemInfo about the GPS/GNSS hardware.
diff --git a/gnss/1.0/IGnssConfiguration.hal b/gnss/1.0/IGnssConfiguration.hal
index 2fb6e4e..e315286 100644
--- a/gnss/1.0/IGnssConfiguration.hal
+++ b/gnss/1.0/IGnssConfiguration.hal
@@ -16,68 +16,68 @@
 
 package android.hardware.gnss@1.0;
 
-/*
+/**
  * Interface for passing GNSS configuration info from platform to HAL.
  */
 interface IGnssConfiguration {
-    /*
+    /**
      * Enum which holds the bit masks for SUPL_MODE configuration parameter.
      */
     enum SuplMode : uint8_t {
-        /* Mobile Station Based */
+        /** Mobile Station Based */
         MSB = 0x01,
 
-        /* Mobile Station Assisted */
+        /** Mobile Station Assisted */
         MSA = 0x02
     };
 
-    /*
+    /**
      * Enum which holds the bit masks for GPS_LOCK configuration parameter.
      */
     enum GpsLock : uint8_t {
-        /* Lock Mobile Originated GPS functionalitues. */
+        /** Lock Mobile Originated GPS functionalitues. */
         MO    =  0x01,
 
-        /* Lock Network initiated GPS functionalities. */
+        /** Lock Network initiated GPS functionalities. */
         NI    =  0x02
     };
 
-    /*
+    /**
      * Enum that hold the bit masks for various LTE Positioning Profile settings (LPP_PROFILE
      * configuration parameter). If none of the bits in the enum are set, the default setting is
      * Radio Resource Location Protocol(RRLP).
      */
     enum LppProfile : uint8_t {
-        /* Enable LTE Positioning Protocol user plane */
+        /** Enable LTE Positioning Protocol user plane */
         USER_PLANE          = 0x01,
 
-        /* Enable LTE Positioning Protocol Control plane */
+        /** Enable LTE Positioning Protocol Control plane */
         CONTROL_PLANE       = 0x02
     };
 
-    /*
+    /**
      * Enum which holds the bit masks for A_GLONASS_POS_PROTOCOL_SELECT
      * configuration parameter.
      */
     enum GlonassPosProtocol : uint8_t {
-        /* Radio Resource Control(RRC) control-plane. */
+        /** Radio Resource Control(RRC) control-plane. */
         RRC_CPLANE                  = 0x01,
 
-        /* Radio Resource Location user-plane. */
+        /** Radio Resource Location user-plane. */
         RRLP_CPLANE                 = 0x02,
 
-        /* LTE Positioning Protocol User plane */
+        /** LTE Positioning Protocol User plane */
         LPP_UPLANE                  = 0x04
     };
 
-    /*
+    /**
      * IMPORTANT: GNSS HAL must expect the below methods to be called multiple
      * times. They can be called even when GnssLocationProvider is already
      * constructed and enabled. GNSS HAL must maintain the existing requests
      * for various callbacks regardless the change in configuration data.
      */
 
-     /*
+     /**
       * This method enables or disables emergency SUPL.
       *
       * @param enabled True if emergency SUPL is to be enabled.
@@ -86,7 +86,7 @@
       */
      setSuplEs(bool enabled) generates (bool success);
 
-     /*
+     /**
       * This method sets the SUPL version requested by Carrier. The GNSS HAL
       * must use this version of the SUPL protocol if supported.
       *
@@ -99,7 +99,7 @@
       */
      setSuplVersion(uint32_t version) generates (bool success);
 
-     /*
+     /**
       * This method sets the SUPL mode.
       *
       * @param mode Bit mask that specifies the SUPL mode which is set with the SuplMode enum.
@@ -108,7 +108,7 @@
       */
      setSuplMode(bitfield<SuplMode> mode) generates (bool success);
 
-     /*
+     /**
       * This setting configures how GPS functionalities should be locked when
       * user turns off GPS On setting.
       *
@@ -119,7 +119,7 @@
       */
      setGpsLock(bitfield<GpsLock> lock) generates (bool success);
 
-     /*
+     /**
       * This method sets the LTE Positioning Profile configuration.
       *
       * @param lppProfile Bitmask that specifies the LTE Positioning Profile
@@ -129,7 +129,7 @@
       */
      setLppProfile(bitfield<LppProfile> lppProfile) generates (bool success);
 
-     /*
+     /**
       * This method selects positioning protocol on A-Glonass system.
       *
       * @param protocol Bitmask that specifies the positioning protocol to be
@@ -139,7 +139,7 @@
       */
      setGlonassPositioningProtocol(bitfield<GlonassPosProtocol> protocol) generates (bool success);
 
-     /*
+     /**
       * This method configures which PDN to use.
       *
       * @param enable Use emergency PDN if true and regular PDN if false.
diff --git a/gnss/1.0/IGnssDebug.hal b/gnss/1.0/IGnssDebug.hal
index 8784d1a..9c1038f 100644
--- a/gnss/1.0/IGnssDebug.hal
+++ b/gnss/1.0/IGnssDebug.hal
@@ -1,107 +1,107 @@
 package android.hardware.gnss@1.0;
 
-/* Extended interface for DEBUG support. */
+/** Extended interface for DEBUG support. */
 interface IGnssDebug {
     enum SatelliteEphemerisType : uint8_t {
-        /* no information is known to the gnss hardware, about this satellite */
+        /** no information is known to the gnss hardware, about this satellite */
         UNKNOWN,
-        /*  this satellite is known to exist */
+        /**  this satellite is known to exist */
         KNOWN,
-        /*  this satellite is not known to exist */
+        /**  this satellite is not known to exist */
         NONEXISTENT,
-        /* Only Almanac (approximate) location known for this satellite */
+        /** Only Almanac (approximate) location known for this satellite */
         ALMANAC_ONLY,
-        /* Ephemeris is known from demodulating the signal on device */
+        /** Ephemeris is known from demodulating the signal on device */
         DEMODULATED,
-        /* Ephemeris has been provided by SUPL */
+        /** Ephemeris has been provided by SUPL */
         SUPL_PROVIDED,
-        /* Ephemeris has been provided by another server */
+        /** Ephemeris has been provided by another server */
         OTHER_SERVER_PROVIDED,
-        /*
+        /**
          * Predicted ephemeris has been provided by a server
          * (e.g. Xtra, Extended Ephemeris, etc...)
          */
         SERVER_PREDICTED,
-        /*
+        /**
          * Predicted ephemeris in use, generated locally on the device (e.g. from prior
          * ephemeris)
          */
         LOCALLY_PREDICTED
     };
 
-    /*
+    /**
      * Provides the current best known position from any
      * source (GNSS or injected assistance).
      */
     struct PositionDebug {
-        /*
+        /**
          * Validity of the data in this struct. False only if no
          * latitude/longitude information is known.
          */
         bool valid;
-        /* Latitude expressed in degrees */
+        /** Latitude expressed in degrees */
         double latitudeDegrees;
-        /* Longitude expressed in degrees */
+        /** Longitude expressed in degrees */
         double longitudeDegrees;
-        /* Altitude above ellipsoid expressed in meters */
+        /** Altitude above ellipsoid expressed in meters */
         float altitudeMeters;
-        /* Represents speed in meters per second. */
+        /** Represents speed in meters per second. */
         float speedMetersPerSec;
-        /* Represents heading in degrees. */
+        /** Represents heading in degrees. */
         float bearingDegrees;
-        /*
+        /**
          * estimated horizontal accuracy of position expressed in meters, radial,
          * 68% confidence.
          */
         double horizontalAccuracyMeters;
-        /*
+        /**
          * estimated vertical accuracy of position expressed in meters, with
          * 68% confidence.
          */
         double verticalAccuracyMeters;
-        /*
+        /**
          * estimated speed accuracy in meters per second with 68% confidence.
          */
         double speedAccuracyMetersPerSecond;
-        /*
+        /**
          * estimated bearing accuracy degrees with 68% confidence.
          */
         double bearingAccuracyDegrees;
-        /*
+        /**
          * Time duration before this report that this position information was
          * valid.
          */
         float ageSeconds;
     };
 
-    /*
+    /**
      * Provides the current best known UTC time estimate.
      */
     struct TimeDebug {
-        /*
+        /**
          * Validity of the data in the struct.
          * False if current time is unknown.
          */
         bool valid;
-        /*
+        /**
          * UTC time estimate.
          */
         GnssUtcTime timeEstimate;
-        /* 68% error estimate in time. */
+        /** 68% error estimate in time. */
         float timeUncertaintyNs;
     };
 
-    /*
+    /**
      * Provides a single satellite info that has decoded navigation data.
      */
     struct SatelliteData {
-        /* Satellite vehicle ID number */
+        /** Satellite vehicle ID number */
         int16_t svid;
-        /* Defines the constellation type of the given SV. */
+        /** Defines the constellation type of the given SV. */
         GnssConstellationType constellation;
-        /* Defines the ephemeris type of the satellite. */
+        /** Defines the ephemeris type of the satellite. */
         SatelliteEphemerisType ephemerisType;
-        /*
+        /**
          * Time duration before this report, that the ephemeris source was last
          * updated, e.g. latest demodulation, or latest server download.
          * Set to 0 when ephemerisType is UNKNOWN.
@@ -109,16 +109,16 @@
         float ephemerisAgeSeconds;
     };
 
-    /*
+    /**
      * Provides a set of debug information that is filled by the GNSS chipset
      * when the method getDebugData() is invoked.
      */
     struct DebugData {
-        /* Current best known position. */
+        /** Current best known position. */
         PositionDebug position;
-        /* Current best know time estimate */
+        /** Current best know time estimate */
         TimeDebug time;
-        /*
+        /**
          * Provides a list of the decoded satellite ephemeris.
          * Must provide a complete list for all constellations device can track,
          * including GnssConstellationType UNKNOWN.
@@ -127,7 +127,7 @@
 
     };
 
-    /*
+    /**
      * This methods requests position, time and satellite ephemeris debug information
      * from the HAL.
      *
diff --git a/gnss/1.0/IGnssGeofenceCallback.hal b/gnss/1.0/IGnssGeofenceCallback.hal
index 722317e..a73790a 100644
--- a/gnss/1.0/IGnssGeofenceCallback.hal
+++ b/gnss/1.0/IGnssGeofenceCallback.hal
@@ -16,7 +16,7 @@
 
 package android.hardware.gnss@1.0;
 
-/*
+/**
  * GNSS Geofence.
  * There are 3 states associated with a Geofence: Inside, Outside, Unknown.
  * There are 3 transitions: ENTERED, EXITED, UNCERTAIN.
@@ -114,7 +114,7 @@
         ERROR_GENERIC            = -149
     };
 
-    /*
+    /**
      * The callback associated with the geofence transition.
      * The callback must only be called when the caller is interested in that
      * particular transition. For instance, if the caller is interested only in
@@ -134,7 +134,7 @@
     gnssGeofenceTransitionCb(int32_t geofenceId, GnssLocation location,
         GeofenceTransition transition, GnssUtcTime timestamp);
 
-    /*
+    /**
      * The callback associated with the availability of the GNSS system for
      * geofencing monitoring. If the GNSS system determines that it cannot monitor
      * geofences because of lack of reliability or unavailability of the GNSS
@@ -145,7 +145,7 @@
      */
     gnssGeofenceStatusCb(GeofenceAvailability status, GnssLocation lastLocation);
 
-    /*
+    /**
      * The callback associated with the addGeofence call.
      *
      * @param geofenceId Id of the geofence.
@@ -159,7 +159,7 @@
      */
     gnssGeofenceAddCb(int32_t geofenceId, GeofenceStatus status);
 
-    /*
+    /**
      * The callback associated with the removeGeofence call.
      *
      * @param geofenceId Id of the geofence.
@@ -169,7 +169,7 @@
      */
     gnssGeofenceRemoveCb(int32_t geofenceId, GeofenceStatus status);
 
-    /*
+    /**
      * The callback associated with the pauseGeofence call.
      *
      * @param geofenceId Id of the geofence.
@@ -180,7 +180,7 @@
      */
     gnssGeofencePauseCb(int32_t geofenceId, GeofenceStatus status);
 
-    /*
+    /**
      * The callback associated with the resumeGeofence call.
      *
      * @param geofenceId - Id of the geofence.
diff --git a/gnss/1.0/IGnssGeofencing.hal b/gnss/1.0/IGnssGeofencing.hal
index b8348b3..562355a 100644
--- a/gnss/1.0/IGnssGeofencing.hal
+++ b/gnss/1.0/IGnssGeofencing.hal
@@ -18,9 +18,9 @@
 
 import IGnssGeofenceCallback;
 
-/* Extended interface for GNSS Geofencing support */
+/** Extended interface for GNSS Geofencing support */
 interface IGnssGeofencing {
-    /*
+    /**
      * Opens the geofence interface and provides the callback routines
      * to the HAL.
      *
@@ -28,7 +28,7 @@
      */
     setCallback(IGnssGeofenceCallback callback);
 
-    /*
+    /**
      * Add a geofence area. This api currently supports circular geofences.
      *
      * @param geofenceId The id for the geofence. If a geofence with this id
@@ -59,14 +59,14 @@
             uint32_t notificationResponsivenessMs,
             uint32_t unknownTimerMs);
 
-    /*
+    /**
      * Pause monitoring a particular geofence.
      *
      * @param geofenceId The id for the geofence.
      */
     pauseGeofence(int32_t geofenceId);
 
-    /*
+    /**
      * Resume monitoring a particular geofence.
      *
      * @param geofenceId - The id for the geofence.
@@ -78,7 +78,7 @@
     resumeGeofence(int32_t geofenceId,
             bitfield<IGnssGeofenceCallback.GeofenceTransition> monitorTransitions);
 
-    /*
+    /**
      * Remove a geofence area. After the function returns, no notifications
      * must be sent.
      *
diff --git a/gnss/1.0/IGnssMeasurement.hal b/gnss/1.0/IGnssMeasurement.hal
index 8329442..fad83d2 100644
--- a/gnss/1.0/IGnssMeasurement.hal
+++ b/gnss/1.0/IGnssMeasurement.hal
@@ -18,7 +18,7 @@
 
 import IGnssMeasurementCallback;
 
-/*
+/**
  * Extended interface for GNSS Measurements support.
  */
 interface IGnssMeasurement {
@@ -29,7 +29,7 @@
         ERROR_GENERIC = -101
     };
 
-    /*
+    /**
      * Initializes the interface and registers the callback routines with the HAL.
      * After a successful call to 'setCallback' the HAL must begin to provide updates at
      * an average output rate of 1Hz (occasional
@@ -46,7 +46,7 @@
      */
     setCallback(IGnssMeasurementCallback callback) generates (GnssMeasurementStatus initRet);
 
-    /*
+    /**
      * Stops updates from the HAL, and unregisters the callback routines.
      * After a call to close(), the previously registered callbacks must be
      * considered invalid by the HAL.
diff --git a/gnss/1.0/IGnssMeasurementCallback.hal b/gnss/1.0/IGnssMeasurementCallback.hal
index 5789621..467bf19 100644
--- a/gnss/1.0/IGnssMeasurementCallback.hal
+++ b/gnss/1.0/IGnssMeasurementCallback.hal
@@ -16,9 +16,9 @@
 
 package android.hardware.gnss@1.0;
 
-/* The callback interface to report measurements from the HAL. */
+/** The callback interface to report measurements from the HAL. */
 interface IGnssMeasurementCallback {
-    /*
+    /**
      * Flags to indicate what fields in GnssClock are valid.
      */
     @export(name="", value_prefix="GNSS_CLOCK_")
@@ -39,7 +39,7 @@
         HAS_DRIFT_UNCERTAINTY  = 1 << 6
     };
 
-    /*
+    /**
      * Flags to indicate what fields in GnssMeasurement are valid.
      */
     @export(name="", value_prefix="GNSS_MEASUREMENT_")
@@ -58,7 +58,7 @@
         HAS_AUTOMATIC_GAIN_CONTROL     = 1 << 13
     };
 
-    /*
+    /**
      * Enumeration of available values for the GNSS Measurement's multipath
      * indicator.
      */
@@ -72,7 +72,7 @@
         INDICATIOR_NOT_PRESENT = 2
     };
 
-    /*
+    /**
      * Flags indicating the GNSS measurement state.
      *
      * The expected behavior here is for GNSS HAL to set all the flags that applies.
@@ -106,7 +106,7 @@
         STATE_GLO_TOD_KNOWN          = 1 << 15,
     };
 
-    /*
+    /**
      * Flags indicating the Accumulated Delta Range's states.
      */
     @export(name="", value_prefix="GNSS_")
@@ -117,17 +117,17 @@
         ADR_STATE_CYCLE_SLIP = 1 << 2,
     };
 
-    /*
+    /**
      * Represents an estimate of the GNSS clock time.
      */
     struct GnssClock {
-        /*
+        /**
          * A set of flags indicating the validity of the fields in this data
          * structure.
          */
         bitfield<GnssClockFlags> gnssClockFlags;
 
-        /*
+        /**
          * Leap second data.
          * The sign of the value is defined by the following equation:
          *      utcTimeNs = timeNs - (fullBiasNs + biasNs) - leapSecond *
@@ -138,7 +138,7 @@
          */
         int16_t leapSecond;
 
-        /*
+        /**
          * The GNSS receiver internal clock value. This is the local hardware clock
          * value.
          *
@@ -159,7 +159,7 @@
          */
         int64_t timeNs;
 
-        /*
+        /**
          * 1-Sigma uncertainty associated with the clock's time in nanoseconds.
          * The uncertainty is represented as an absolute (single sided) value.
          *
@@ -170,7 +170,7 @@
          */
         double timeUncertaintyNs;
 
-        /*
+        /**
          * The difference between hardware clock ('time' field) inside GNSS receiver
          * and the true GNSS time since 0000Z, January 6, 1980, in nanoseconds.
          *
@@ -187,7 +187,7 @@
          */
         int64_t fullBiasNs;
 
-        /*
+        /**
          * Sub-nanosecond bias.
          * The error estimate for the sum of this and the fullBiasNs is the
          * biasUncertaintyNs.
@@ -198,7 +198,7 @@
          */
         double biasNs;
 
-        /*
+        /**
          * 1-Sigma uncertainty associated with the local estimate of GNSS time (clock
          * bias) in nanoseconds. The uncertainty is represented as an absolute
          * (single sided) value.
@@ -209,7 +209,7 @@
          */
         double biasUncertaintyNs;
 
-        /*
+        /**
          * The clock's drift in nanoseconds (per second).
          *
          * A positive value means that the frequency is higher than the nominal
@@ -223,7 +223,7 @@
          */
         double driftNsps;
 
-        /*
+        /**
          * 1-Sigma uncertainty associated with the clock's drift in nanoseconds (per
          * second).
          * The uncertainty is represented as an absolute (single sided) value.
@@ -234,7 +234,7 @@
          */
         double driftUncertaintyNsps;
 
-        /*
+        /**
          * When there are any discontinuities in the HW clock, this field is
          * mandatory.
          *
@@ -267,7 +267,7 @@
 
     };
 
-    /*
+    /**
      * Represents a GNSS Measurement, it contains raw and computed information.
      *
      * All signal measurement information (e.g. svTime,
@@ -277,24 +277,24 @@
      * position, velocity, or time.
      */
     struct GnssMeasurement{
-        /*
+        /**
          * A set of flags indicating the validity of the fields in this data
          * structure.
          */
         bitfield<GnssMeasurementFlags> flags;
 
-        /*
+        /**
          * Satellite vehicle ID number, as defined in GnssSvInfo::svid
          * This is a mandatory value.
          */
         int16_t svid;
 
-        /*
+        /**
          * Defines the constellation of the given SV.
          */
         GnssConstellationType constellation;
 
-        /*
+        /**
          * Time offset at which the measurement was taken in nanoseconds.
          * The reference receiver's time is specified by GnssData::clock::timeNs.
          *
@@ -307,7 +307,7 @@
          */
         double timeOffsetNs;
 
-        /*
+        /**
          * Per satellite sync state. It represents the current sync state for the
          * associated satellite.
          * Based on the sync state, the 'received GNSS tow' field must be interpreted
@@ -317,7 +317,7 @@
          */
         bitfield<GnssMeasurementState> state;
 
-        /*
+        /**
          * The received GNSS Time-of-Week at the measurement time, in nanoseconds.
          * For GNSS & QZSS, this is the received GNSS Time-of-Week at the
          * measurement time, in nanoseconds. The value is relative to the
@@ -402,14 +402,14 @@
          */
         int64_t receivedSvTimeInNs;
 
-        /*
+        /**
          * 1-Sigma uncertainty of the Received GNSS Time-of-Week in nanoseconds.
          *
          * This value must be populated if 'state' != STATE_UNKNOWN.
          */
         int64_t receivedSvTimeUncertaintyInNs;
 
-        /*
+        /**
          * Carrier-to-noise density in dB-Hz, typically in the range [0, 63].
          * It contains the measured C/N0 value for the signal at the antenna port.
          *
@@ -417,7 +417,7 @@
          */
         double cN0DbHz;
 
-        /*
+        /**
          * Pseudorange rate at the timestamp in m/s. The correction of a given
          * Pseudorange Rate value includes corrections for receiver and satellite
          * clock frequency errors. Ensure that this field is independent (see
@@ -445,7 +445,7 @@
          */
         double pseudorangeRateMps;
 
-        /*
+        /**
          * 1-Sigma uncertainty of the pseudorangeRateMps.
          * The uncertainty is represented as an absolute (single sided) value.
          *
@@ -453,7 +453,7 @@
          */
         double pseudorangeRateUncertaintyMps;
 
-        /*
+        /**
          * Accumulated delta range's state. It indicates whether ADR is reset or
          * there is a cycle slip(indicating loss of lock).
          *
@@ -461,7 +461,7 @@
          */
         bitfield<GnssAccumulatedDeltaRangeState> accumulatedDeltaRangeState;
 
-        /*
+        /**
          * Accumulated delta range since the last channel reset in meters.
          * A positive value indicates that the SV is moving away from the receiver.
          *
@@ -476,14 +476,14 @@
          */
         double accumulatedDeltaRangeM;
 
-        /*
+        /**
          * 1-Sigma uncertainty of the accumulated delta range in meters.
          * This value must be populated if 'accumulated delta range state' !=
          * ADR_STATE_UNKNOWN.
          */
         double accumulatedDeltaRangeUncertaintyM;
 
-        /*
+        /**
          * Carrier frequency of the signal tracked, for example it can be the
          * GPS central frequency for L1 = 1575.45 MHz, or L2 = 1227.60 MHz, L5 =
          * 1176.45 MHz, varying GLO channels, etc. If the field is not set, it
@@ -501,7 +501,7 @@
          */
         float carrierFrequencyHz;
 
-        /*
+        /**
          * The number of full carrier cycles between the satellite and the
          * receiver. The reference frequency is given by the field
          * 'carrierFrequencyHz'. Indications of possible cycle slips and
@@ -513,7 +513,7 @@
          */
         int64_t carrierCycles;
 
-        /*
+        /**
          * The RF phase detected by the receiver, in the range [0.0, 1.0].
          * This is usually the fractional part of the complete carrier phase
          * measurement.
@@ -526,14 +526,14 @@
          */
         double carrierPhase;
 
-        /*
+        /**
          * 1-Sigma uncertainty of the carrier-phase.
          * If the data is available, gnssClockFlags must contain
          * HAS_CARRIER_PHASE_UNCERTAINTY.
          */
         double carrierPhaseUncertainty;
 
-        /*
+        /**
          * An enumeration that indicates the 'multipath' state of the event.
          *
          * The multipath Indicator is intended to report the presence of overlapping
@@ -554,7 +554,7 @@
          */
         GnssMultipathIndicator multipathIndicator;
 
-        /*
+        /**
          * Signal-to-noise ratio at correlator output in dB.
          * If the data is available, gnssClockFlags must contain MEASUREMENT_HAS_SNR.
          * This is the power ratio of the "correlation peak height above the
@@ -562,7 +562,7 @@
          */
         double snrDb;
 
-        /*
+        /**
          * Automatic gain control (AGC) level. AGC acts as a variable gain
          * amplifier adjusting the power of the incoming signal. The AGC level
          * may be used to indicate potential interference. When AGC is at a
@@ -581,7 +581,7 @@
         double agcLevelDb;
     };
 
-    /*
+    /**
      * Represents a reading of GNSS measurements. For devices where GnssSystemInfo's
      * yearOfHw is set to 2016+, it is mandatory that these be provided, on
      * request, when the GNSS receiver is searching/tracking signals.
@@ -590,17 +590,17 @@
      * - Reporting of all tracked constellations are encouraged.
      */
     struct GnssData {
-        /* Number of GnssMeasurement elements. */
+        /** Number of GnssMeasurement elements. */
         uint32_t measurementCount;
 
-        /* The array of measurements. */
+        /** The array of measurements. */
         GnssMeasurement[GnssMax:SVS_COUNT] measurements;
 
         /** The GNSS clock time reading. */
         GnssClock clock;
     };
 
-    /*
+    /**
      * Callback for the hal to pass a GnssData structure back to the client.
      *
      * @param data Contains a reading of GNSS measurements.
diff --git a/gnss/1.0/IGnssNavigationMessage.hal b/gnss/1.0/IGnssNavigationMessage.hal
index ddd9169..db46d11 100644
--- a/gnss/1.0/IGnssNavigationMessage.hal
+++ b/gnss/1.0/IGnssNavigationMessage.hal
@@ -18,7 +18,7 @@
 
 import IGnssNavigationMessageCallback;
 
-/*
+/**
  * Extended interface for GNSS navigation message reporting support.
  */
 interface IGnssNavigationMessage {
@@ -29,7 +29,7 @@
         ERROR_GENERIC = -101
     };
 
-    /*
+    /**
      * Initializes the interface and registers the callback routines with the HAL.
      * After a successful call to 'setCallback' the HAL must begin to provide updates as
      * they become available.
@@ -45,7 +45,7 @@
      */
      setCallback(IGnssNavigationMessageCallback callback) generates (GnssNavigationMessageStatus initRet);
 
-    /*
+    /**
      * Stops updates from the HAL, and unregisters the callback routines.
      * After a call to close(), the previously registered callbacks must be
      * considered invalid by the HAL.
diff --git a/gnss/1.0/IGnssNavigationMessageCallback.hal b/gnss/1.0/IGnssNavigationMessageCallback.hal
index 2e6b853..714351b 100644
--- a/gnss/1.0/IGnssNavigationMessageCallback.hal
+++ b/gnss/1.0/IGnssNavigationMessageCallback.hal
@@ -18,7 +18,7 @@
 
 /** Represents a GNSS navigation message (or a fragment of it). */
 interface IGnssNavigationMessageCallback {
-    /*
+    /**
      * Enumeration of available values to indicate the GNSS Navigation message
      * types.
      *
@@ -48,7 +48,7 @@
         GAL_F           = 0x0602
     };
 
-    /*
+    /**
      * Status of Navigation Message
      * When a message is received properly without any parity error in its
      * navigation words, the status must be set to PARITY_PASSED. But if a message is
@@ -65,26 +65,26 @@
     };
 
     struct GnssNavigationMessage {
-        /*
+        /**
          * Satellite vehicle ID number, as defined in GnssSvInfo::svid
          * This is a mandatory value.
          */
         int16_t svid;
 
-        /*
+        /**
          * The type of message contained in the structure.
          * This is a mandatory value.
          */
         GnssNavigationMessageType type;
 
-        /*
+        /**
          * The status of the received navigation message.
          * No need to send any navigation message that contains words with parity
          * error and cannot be corrected.
          */
         bitfield<NavigationMessageStatus> status;
 
-        /*
+        /**
          * Message identifier. It provides an index so the complete Navigation
          * Message can be assembled.
          *
@@ -106,7 +106,7 @@
          */
         int16_t messageId;
 
-        /*
+        /**
          * Sub-message identifier. If required by the message 'type', this value
          * contains a sub-index within the current message (or frame) that is being
          * transmitted.
@@ -123,7 +123,7 @@
          */
         int16_t submessageId;
 
-        /*
+        /**
          * The data of the reported GNSS message. The bytes (or words) are specified
          * using big endian format (MSB first). The data is stored and decoded
          * in a server for research purposes.
@@ -158,7 +158,7 @@
         vec<uint8_t> data;
     };
 
-    /*
+    /**
      * The callback to report an available fragment of a GNSS navigation messages
      * from the HAL.
      *
diff --git a/gnss/1.0/IGnssNi.hal b/gnss/1.0/IGnssNi.hal
index c823bf0..fa98ab0 100644
--- a/gnss/1.0/IGnssNi.hal
+++ b/gnss/1.0/IGnssNi.hal
@@ -17,19 +17,19 @@
 package android.hardware.gnss@1.0;
 import IGnssNiCallback;
 
-/*
+/**
  * Extended interface for Network-initiated (NI) support. This interface is used
  * to respond to NI notifications originating from the HAL.
  */
 interface IGnssNi {
-    /*
+    /**
      * Registers the callbacks for HAL to use.
      *
      * @param callback handle to IGnssNiCallback interface.
      */
     setCallback(IGnssNiCallback callback);
 
-    /*
+    /**
      * Sends a response to HAL.
      *
      * @param notifId An ID generated by HAL to associate NI notifications and
diff --git a/gnss/1.0/IGnssNiCallback.hal b/gnss/1.0/IGnssNiCallback.hal
index c5fb223..163ba25 100644
--- a/gnss/1.0/IGnssNiCallback.hal
+++ b/gnss/1.0/IGnssNiCallback.hal
@@ -16,9 +16,9 @@
 
 package android.hardware.gnss@1.0;
 
-/* GNSS Network Initiated callback interface. */
+/** GNSS Network Initiated callback interface. */
 interface IGnssNiCallback {
-    /*
+    /**
      * GnssNiType constants
      */
     @export(name="", value_prefix="GPS_NI_TYPE_")
@@ -28,7 +28,7 @@
         UMTS_CTRL_PLANE = 3
     };
 
-    /*
+    /**
      * GnssNiNotifyFlags constants
      */
     @export(name="", value_prefix="GPS_NI_")
@@ -41,7 +41,7 @@
         PRIVACY_OVERRIDE = 0x0004,
     };
 
-    /*
+    /**
      * GNSS NI responses, used to define the response in
      * NI structures
      */
@@ -52,7 +52,7 @@
         RESPONSE_NORESP  = 3,
     };
 
-    /*
+    /**
      * NI data encoding scheme
      */
     @export(name="", value_prefix="GPS_")
@@ -66,59 +66,59 @@
 
     /** Represents an NI request */
     struct GnssNiNotification{
-        /*
+        /**
          * An ID generated by HAL to associate NI notifications and UI
          * responses.
          */
         int32_t notificationId;
 
-        /*
+        /**
          * A type used to distinguish different categories of NI
          * events, such as VOICE, UMTS_SUPL etc.
          */
         GnssNiType niType;
 
-        /*
+        /**
          * Notification/verification options, combinations of GnssNiNotifyFlags
          * constants.
          */
         bitfield<GnssNiNotifyFlags> notifyFlags;
 
-        /*
+        /**
          * Timeout period to wait for user response.
          * Set to 0 for no timeout limit. Specified in seconds.
          */
         uint32_t timeoutSec;
 
-        /*
+        /**
          * Default response when timeout.
          */
         GnssUserResponseType defaultResponse;
 
-        /*
+        /**
          * String representing the requester of the network inititated location
          * request.
          */
         string requestorId;
 
-        /*
+        /**
          * Notification message. String representing the service(for eg. SUPL-service)
          * who sent the network initiated location request.
          */
         string notificationMessage;
 
-        /*
+        /**
          * requestorId decoding scheme.
          */
         GnssNiEncodingType requestorIdEncoding;
 
-        /*
+        /**
          * notificationId decoding scheme
          */
         GnssNiEncodingType notificationIdEncoding;
     };
 
-    /*
+    /**
      * Callback with a network initiated request.
      *
      * @param notification network initiated request.
diff --git a/gnss/1.0/IGnssXtra.hal b/gnss/1.0/IGnssXtra.hal
index 5222fde..a2c8f39 100644
--- a/gnss/1.0/IGnssXtra.hal
+++ b/gnss/1.0/IGnssXtra.hal
@@ -1,12 +1,12 @@
 package android.hardware.gnss@1.0;
 import IGnssXtraCallback;
 
-/*
+/**
  * This interface is used by the GNSS HAL to request the framework
  * to download XTRA data.
  */
 interface IGnssXtra {
-    /*
+    /**
      * Opens the XTRA interface and provides the callback routines
      * to the implementation of this interface.
      *
@@ -16,7 +16,7 @@
      */
     setCallback(IGnssXtraCallback callback) generates (bool success);
 
-    /*
+    /**
      * Inject the downloaded XTRA data into the GNSS receiver.
      *
      * @param xtraData GNSS XTRA data.
diff --git a/gnss/1.0/IGnssXtraCallback.hal b/gnss/1.0/IGnssXtraCallback.hal
index 42df082..838f1ad 100644
--- a/gnss/1.0/IGnssXtraCallback.hal
+++ b/gnss/1.0/IGnssXtraCallback.hal
@@ -1,10 +1,10 @@
 package android.hardware.gnss@1.0;
 
-/*
+/**
  * This interface is used by the GNSS HAL to request download of XTRA data.
  */
 interface IGnssXtraCallback {
-   /*
+   /**
     * Callback to request the client to download XTRA data. The client should
     * download XTRA data and inject it by calling injectXtraData().
     */
diff --git a/gnss/1.0/types.hal b/gnss/1.0/types.hal
index d5e0e9b..ea2c756 100644
--- a/gnss/1.0/types.hal
+++ b/gnss/1.0/types.hal
@@ -22,10 +22,10 @@
     SVS_COUNT = 64,
 };
 
-/* Milliseconds since January 1, 1970 */
+/** Milliseconds since January 1, 1970 */
 typedef int64_t GnssUtcTime;
 
-/*
+/**
  * Constellation type of GnssSvInfo
  */
 
@@ -61,52 +61,52 @@
     HAS_BEARING_ACCURACY      = 0x0080
 };
 
-/* Represents a location. */
+/** Represents a location. */
 struct GnssLocation {
-    /* Contains GnssLocationFlags bits. */
+    /** Contains GnssLocationFlags bits. */
     bitfield<GnssLocationFlags> gnssLocationFlags;
 
-    /* Represents latitude in degrees. */
+    /** Represents latitude in degrees. */
     double latitudeDegrees;
 
-    /* Represents longitude in degrees. */
+    /** Represents longitude in degrees. */
     double longitudeDegrees;
 
-    /*
+    /**
      * Represents altitude in meters above the WGS 84 reference ellipsoid.
      */
     double altitudeMeters;
 
-    /* Represents speed in meters per second. */
+    /** Represents speed in meters per second. */
     float speedMetersPerSec;
 
-    /* Represents heading in degrees. */
+    /** Represents heading in degrees. */
     float bearingDegrees;
 
-    /*
+    /**
     * Represents expected horizontal position accuracy, radial, in meters
     * (68% confidence).
     */
     float horizontalAccuracyMeters;
 
-    /*
+    /**
     * Represents expected vertical position accuracy in meters
     * (68% confidence).
     */
     float verticalAccuracyMeters;
 
-    /*
+    /**
     * Represents expected speed accuracy in meter per seconds
     * (68% confidence).
     */
     float speedAccuracyMetersPerSecond;
 
-    /*
+    /**
     * Represents expected bearing accuracy in degrees
     * (68% confidence).
     */
     float bearingAccuracyDegrees;
 
-    /* Timestamp for the location fix. */
+    /** Timestamp for the location fix. */
     GnssUtcTime timestamp;
 };
diff --git a/graphics/allocator/2.0/IAllocator.hal b/graphics/allocator/2.0/IAllocator.hal
index 00d07d5..bf0e141 100644
--- a/graphics/allocator/2.0/IAllocator.hal
+++ b/graphics/allocator/2.0/IAllocator.hal
@@ -20,23 +20,23 @@
 
 interface IAllocator {
     enum Capability : int32_t {
-        /* reserved */
+        /** reserved */
         INVALID = 0,
 
-        /*
+        /**
          * IAllocatorClient::testAllocate must always return UNDEFINED unless
          * this capability is supported.
          */
         TEST_ALLOCATE = 1,
 
-        /*
+        /**
          * IAllocatorClient::BufferDescriptorInfo::layerCount must be 1 unless
          * this capability is supported.
          */
         LAYERED_BUFFERS = 2,
     };
 
-    /*
+    /**
      * Provides a list of supported capabilities (as described in the
      * definition of Capability above). This list must not change after
      * initialization.
@@ -48,7 +48,7 @@
     @callflow(next="*")
     getCapabilities() generates (vec<Capability> capabilities);
 
-    /*
+    /**
      * Retrieves implementation-defined debug information, which will be
      * displayed during, for example, `dumpsys SurfaceFlinger`.
      *
@@ -59,7 +59,7 @@
     @callflow(next="*")
     dumpDebugInfo() generates (string debugInfo);
 
-    /*
+    /**
      * Creates a client of the allocator. All resources created by the client
      * are owned by the client and are only visible to the client, unless they
      * are exported by exportHandle.
diff --git a/graphics/allocator/2.0/IAllocatorClient.hal b/graphics/allocator/2.0/IAllocatorClient.hal
index 080e3ea..8ca568f 100644
--- a/graphics/allocator/2.0/IAllocatorClient.hal
+++ b/graphics/allocator/2.0/IAllocatorClient.hal
@@ -20,7 +20,7 @@
 
 interface IAllocatorClient {
     struct BufferDescriptorInfo {
-        /*
+        /**
          * The width specifies how many columns of pixels must be in the
          * allocated buffer, but does not necessarily represent the offset in
          * columns between the same column in adjacent rows. The rows may be
@@ -28,34 +28,34 @@
          */
         uint32_t width;
 
-       /*
+       /**
         * The height specifies how many rows of pixels must be in the
         * allocated buffer.
         */
         uint32_t height;
 
-       /*
+       /**
         * The number of image layers that must be in the allocated buffer.
         */
         uint32_t layerCount;
 
-        /* Buffer pixel format. */
+        /** Buffer pixel format. */
         PixelFormat format;
 
-        /*
+        /**
          * Buffer producer usage mask; valid flags can be found in the
          * definition of ProducerUsage.
          */
         uint64_t producerUsageMask;
 
-        /*
+        /**
          * Buffer consumer usage mask; valid flags can be found in the
          * definition of ConsumerUsage.
          */
         uint64_t consumerUsageMask;
     };
 
-    /*
+    /**
      * Creates a new, opaque buffer descriptor.
      *
      * @param descriptorInfo specifies the attributes of the buffer
@@ -71,7 +71,7 @@
           generates (Error error,
                      BufferDescriptor descriptor);
 
-    /*
+    /**
      * Destroys an existing buffer descriptor.
      *
      * @param descriptor is the descriptor to destroy.
@@ -81,7 +81,7 @@
     @callflow(next="*")
     destroyDescriptor(BufferDescriptor descriptor) generates (Error error);
 
-    /*
+    /**
      * Tests whether a buffer allocation can succeed, ignoring potential
      * resource contention which might lead to a NO_RESOURCES error.
      *
@@ -98,7 +98,7 @@
     @callflow(next="allocate")
     testAllocate(vec<BufferDescriptor> descriptors) generates (Error error);
 
-    /*
+    /**
      * Attempts to allocate a list of buffers sharing a backing store.
      *
      * Each buffer must correspond to one of the descriptors passed into the
@@ -124,7 +124,7 @@
         generates (Error error,
                    vec<Buffer> buffers);
 
-    /*
+    /**
      * Frees a buffer.
      *
      * @param buffer is the buffer to be freed.
@@ -135,7 +135,7 @@
     @callflow(next="*")
     free(Buffer buffer) generates (Error error);
 
-    /*
+    /**
      * Exports a buffer for use in other client libraries or for cross-process
      * sharing.
      *
diff --git a/graphics/allocator/2.0/types.hal b/graphics/allocator/2.0/types.hal
index f9d1e1b..d9b184b 100644
--- a/graphics/allocator/2.0/types.hal
+++ b/graphics/allocator/2.0/types.hal
@@ -17,130 +17,131 @@
 package android.hardware.graphics.allocator@2.0;
 
 enum Error : int32_t {
-    NONE            = 0, /* no error */
-    BAD_DESCRIPTOR  = 1, /* invalid BufferDescriptor */
-    BAD_BUFFER      = 2, /* invalid Buffer */
-    BAD_VALUE       = 3, /* invalid width, height, etc. */
-    NOT_SHARED      = 4, /* buffers not sharing backing store */
-    NO_RESOURCES    = 5, /* temporary failure due to resource contention */
-    UNDEFINED       = 6, /* an operation has no defined meaning */
-    UNSUPPORTED     = 7, /* permanent failure */
+    NONE            = 0, /** no error */
+    BAD_DESCRIPTOR  = 1, /** invalid BufferDescriptor */
+    BAD_BUFFER      = 2, /** invalid Buffer */
+    BAD_VALUE       = 3, /** invalid width, height, etc. */
+    NOT_SHARED      = 4, /** buffers not sharing backing store */
+    NO_RESOURCES    = 5, /** temporary failure due to resource contention */
+    UNDEFINED       = 6, /** an operation has no defined meaning */
+    UNSUPPORTED     = 7, /** permanent failure */
 };
 
 enum ProducerUsage : uint64_t {
-    /* bit 0 is reserved */
+    /** bit 0 is reserved */
 
-    /* buffer is read by CPU occasionally */
+    /** buffer is read by CPU occasionally */
     CPU_READ        = 1ULL << 1,
-    /* buffer is read by CPU frequently */
+    /** buffer is read by CPU frequently */
     CPU_READ_OFTEN  = 1ULL << 2,
 
-    /* bit 3 is reserved */
-    /* bit 4 is reserved */
+    /** bit 3 is reserved */
+    /** bit 4 is reserved */
 
-    /* buffer is written by CPU occasionally */
+    /** buffer is written by CPU occasionally */
     CPU_WRITE       = 1ULL << 5,
-    /* buffer is written by CPU frequently */
+    /** buffer is written by CPU frequently */
     CPU_WRITE_OFTEN = 1ULL << 6,
 
-    /* bit 7 is reserved */
-    /* bit 8 is reserved */
+    /** bit 7 is reserved */
+    /** bit 8 is reserved */
 
-    /* buffer is used as a GPU render target */
+    /** buffer is used as a GPU render target */
     GPU_RENDER_TARGET = 1ULL << 9,
 
-    /* bit 10 is reserved */
-    /* bit 11 is reserved */
-    /* bit 12 is reserved */
-    /* bit 13 is reserved */
+    /** bit 10 is reserved */
+    /** bit 11 is reserved */
+    /** bit 12 is reserved */
+    /** bit 13 is reserved */
 
-    /*
+    /**
      * Buffer is allocated with hardware-level protection against copying the
      * contents (or information derived from the contents) into unprotected
      * memory.
      */
     PROTECTED         = 1ULL << 14,
 
-    /* bit 15 is reserved */
-    /* bit 16 is reserved */
+    /** bit 15 is reserved */
+    /** bit 16 is reserved */
 
-    /* buffer is used as a camera HAL output */
+    /** buffer is used as a camera HAL output */
     CAMERA            = 1ULL << 17,
 
-    /* bit 18 is reserved */
-    /* bit 19 is reserved */
-    /* bit 20 is reserved */
-    /* bit 21 is reserved */
+    /** bit 18 is reserved */
+    /** bit 19 is reserved */
+    /** bit 20 is reserved */
+    /** bit 21 is reserved */
 
-    /* buffer is used as a video decoder output */
+    /** buffer is used as a video decoder output */
     VIDEO_DECODER     = 1ULL << 22,
 
-    /* buffer is used as a sensor direct report output */
+    /** buffer is used as a sensor direct report output */
     SENSOR_DIRECT_DATA = 1ULL << 23,
 
-    /* bits 24-27 are reserved for future versions */
-    /* bits 28-31 are reserved for vendor extensions */
+    /** bits 24-27 are reserved for future versions */
+    /** bits 28-31 are reserved for vendor extensions */
 
-    /* bits 32-47 are reserved for future versions */
-    /* bits 48-63 are reserved for vendor extensions */
+    /** bits 32-47 are reserved for future versions */
+    /** bits 48-63 are reserved for vendor extensions */
 };
 
 enum ConsumerUsage : uint64_t {
-    /* bit 0 is reserved */
+    /** bit 0 is reserved */
 
-    /* buffer is read by CPU occasionally */
+    /** buffer is read by CPU occasionally */
     CPU_READ          = 1ULL << 1,
-    /* buffer is read by CPU frequently */
+    /** buffer is read by CPU frequently */
     CPU_READ_OFTEN    = 1ULL << 2,
 
-    /* bit 3 is reserved */
-    /* bit 4 is reserved */
-    /* bit 5 is reserved */
-    /* bit 6 is reserved */
-    /* bit 7 is reserved */
+    /** bit 3 is reserved */
+    /** bit 4 is reserved */
+    /** bit 5 is reserved */
+    /** bit 6 is reserved */
+    /** bit 7 is reserved */
 
-    /* buffer is used as a GPU texture */
+    /** buffer is used as a GPU texture */
     GPU_TEXTURE       = 1ULL << 8,
 
-    /* bit 9 is reserved */
-    /* bit 10 is reserved */
+    /** bit 9 is reserved */
+    /** bit 10 is reserved */
 
-    /* buffer is used by hwcomposer HAL */
+    /** buffer is used by hwcomposer HAL */
     HWCOMPOSER        = 1ULL << 11,
-    /* buffer is a hwcomposer HAL client target */
+    /** buffer is a hwcomposer HAL client target */
     CLIENT_TARGET     = 1ULL << 12,
 
-    /* bit 13 is reserved */
-    /* bit 14 is reserved */
+    /** bit 13 is reserved */
+    /** bit 14 is reserved */
 
-    /* buffer is used as a hwcomposer HAL cursor */
+    /** buffer is used as a hwcomposer HAL cursor */
     CURSOR            = 1ULL << 15,
 
-    /* buffer is used as a video encoder input */
+    /** buffer is used as a video encoder input */
     VIDEO_ENCODER     = 1ULL << 16,
 
-    /* bit 17 is reserved */
+    /** bit 17 is reserved */
 
-    /* buffer is used as a camera HAL input */
+    /** buffer is used as a camera HAL input */
     CAMERA            = 1ULL << 18,
 
-    /* bit 19 is reserved */
+    /** bit 19 is reserved */
 
-    /* buffer is used as a renderscript allocation */
+    /** buffer is used as a renderscript allocation */
     RENDERSCRIPT      = 1ULL << 20,
 
-    /* bit 21 is reserved */
-    /* bit 22 is reserved */
+    /** bit 21 is reserved */
+    /** bit 22 is reserved */
 
-    /* buffer is used as as an OpenGL shader storage or uniform
+    /**
+     * buffer is used as as an OpenGL shader storage or uniform
        buffer object */
     GPU_DATA_BUFFER    = 1ULL << 23,
 
-    /* bits 24-27 are reserved for future versions */
-    /* bits 28-31 are reserved for vendor extensions */
+    /** bits 24-27 are reserved for future versions */
+    /** bits 28-31 are reserved for vendor extensions */
 
-    /* bits 32-47 are reserved for future versions */
-    /* bits 48-63 are reserved for vendor extensions */
+    /** bits 32-47 are reserved for future versions */
+    /** bits 48-63 are reserved for vendor extensions */
 };
 
 typedef uint64_t BufferDescriptor;
diff --git a/graphics/bufferqueue/1.0/IGraphicBufferProducer.hal b/graphics/bufferqueue/1.0/IGraphicBufferProducer.hal
index c59a16c..87bb814 100644
--- a/graphics/bufferqueue/1.0/IGraphicBufferProducer.hal
+++ b/graphics/bufferqueue/1.0/IGraphicBufferProducer.hal
@@ -546,7 +546,7 @@
      */
     disconnect(
             int32_t api,
-            DisconnectMode mode /* = DisconnectMode::API */
+            DisconnectMode mode /** = DisconnectMode::API */
         ) generates (
             Status status
         );
diff --git a/graphics/common/1.0/types.hal b/graphics/common/1.0/types.hal
index dfecec1..979e4c4 100644
--- a/graphics/common/1.0/types.hal
+++ b/graphics/common/1.0/types.hal
@@ -21,7 +21,7 @@
  */
 @export(name="android_pixel_format_t", value_prefix="HAL_PIXEL_FORMAT_")
 enum PixelFormat : int32_t {
-    /*
+    /**
      * "linear" color pixel formats:
      *
      * When used with ANativeWindow, the dataSpace field describes the color
@@ -37,7 +37,7 @@
     RGB_565            = 4,
     BGRA_8888          = 5,
 
-    /*
+    /**
      * The following formats use 10bit integers for R, G, and B and
      * 2 bits for alpha. This is used to improve color precision on
      * wide-color devices, e.g. Display-P3 or scRGB.
@@ -47,7 +47,7 @@
      */
     RGBA_1010102       = 0x2B,
 
-    /*
+    /**
      * The following formats use a 16bit float per color component.
      *
      * When used with ANativeWindow, the dataSpace field describes the color
@@ -55,7 +55,7 @@
      */
     RGBA_FP16          = 0x16,
 
-    /*
+    /**
      * 0x101 - 0x1FF
      *
      * This range is reserved for pixel formats that are specific to the HAL
@@ -66,7 +66,7 @@
      * GL_OES_EGL_image_external OpenGL ES extension.
      */
 
-    /*
+    /**
      * Android YUV format:
      *
      * This format is exposed outside of the HAL to software decoders and
@@ -95,7 +95,7 @@
     YV12   = 0x32315659, // YCrCb 4:2:0 Planar
 
 
-    /*
+    /**
      * Android Y8 format:
      *
      * This format is exposed outside of the HAL to the framework.
@@ -120,7 +120,7 @@
      */
     Y8     = 0x20203859,
 
-    /*
+    /**
      * Android Y16 format:
      *
      * This format is exposed outside of the HAL to the framework.
@@ -149,7 +149,7 @@
      */
     Y16    = 0x20363159,
 
-    /*
+    /**
      * Android RAW sensor format:
      *
      * This format is exposed outside of the camera HAL to applications.
@@ -187,7 +187,7 @@
      */
     RAW16 = 0x20,
 
-    /*
+    /**
      * Android RAW10 format:
      *
      * This format is exposed outside of the camera HAL to applications.
@@ -241,7 +241,7 @@
      */
     RAW10 = 0x25,
 
-    /*
+    /**
      * Android RAW12 format:
      *
      * This format is exposed outside of camera HAL to applications.
@@ -291,7 +291,7 @@
      */
     RAW12 = 0x26,
 
-    /*
+    /**
      * Android opaque RAW format:
      *
      * This format is exposed outside of the camera HAL to applications.
@@ -312,7 +312,7 @@
      */
     RAW_OPAQUE = 0x24,
 
-    /*
+    /**
      * Android binary blob graphics buffer format:
      *
      * This format is used to carry task-specific data which does not have a
@@ -338,7 +338,7 @@
      */
     BLOB = 0x21,
 
-    /*
+    /**
      * Android format indicating that the choice of format is entirely up to the
      * device-specific Gralloc implementation.
      *
@@ -356,7 +356,7 @@
      */
     IMPLEMENTATION_DEFINED = 0x22,
 
-    /*
+    /**
      * Android flexible YCbCr 4:2:0 formats
      *
      * This format allows platforms to use an efficient YCbCr/YCrCb 4:2:0
@@ -378,7 +378,7 @@
      */
     YCBCR_420_888 = 0x23,
 
-    /*
+    /**
      * Android flexible YCbCr 4:2:2 formats
      *
      * This format allows platforms to use an efficient YCbCr/YCrCb 4:2:2
@@ -392,7 +392,7 @@
      */
     YCBCR_422_888 = 0x27,
 
-    /*
+    /**
      * Android flexible YCbCr 4:4:4 formats
      *
      * This format allows platforms to use an efficient YCbCr/YCrCb 4:4:4
@@ -406,7 +406,7 @@
      */
     YCBCR_444_888 = 0x28,
 
-    /*
+    /**
      * Android flexible RGB 888 formats
      *
      * This format allows platforms to use an efficient RGB/BGR/RGBX/BGRX
@@ -420,7 +420,7 @@
      */
     FLEX_RGB_888 = 0x29,
 
-    /*
+    /**
      * Android flexible RGBA 8888 formats
      *
      * This format allows platforms to use an efficient RGBA/BGRA/ARGB/ABGR
@@ -434,7 +434,7 @@
      */
     FLEX_RGBA_8888 = 0x2A,
 
-    /* Legacy formats (deprecated), used by ImageFormat.java */
+    /** Legacy formats (deprecated), used by ImageFormat.java */
     YCBCR_422_SP       = 0x10,  // NV16
     YCRCB_420_SP       = 0x11,  // NV21
     YCBCR_422_I        = 0x14,  // YUY2
@@ -450,18 +450,19 @@
  */
 @export(name="android_transform_t", value_prefix="HAL_TRANSFORM_")
 enum Transform : int32_t {
-    /* flip source image horizontally (around the vertical axis) */
+    /** flip source image horizontally (around the vertical axis) */
     FLIP_H    = 0x01,
-    /* flip source image vertically (around the horizontal axis)*/
+    /**
+     * flip source image vertically (around the horizontal axis)*/
     FLIP_V    = 0x02,
-    /* rotate source image 90 degrees clockwise */
+    /** rotate source image 90 degrees clockwise */
     ROT_90    = 0x04,
-    /* rotate source image 180 degrees */
+    /** rotate source image 180 degrees */
     ROT_180   = 0x03,
-    /* rotate source image 270 degrees clockwise */
+    /** rotate source image 270 degrees clockwise */
     ROT_270   = 0x07,
 
-    /* 0x08 is reserved */
+    /** 0x08 is reserved */
 };
 
 /**
@@ -509,7 +510,7 @@
  */
 @export(name="android_dataspace_t", value_prefix="HAL_DATASPACE_")
 enum Dataspace : int32_t {
-    /*
+    /**
      * Default-assumption data space, when not explicitly specified.
      *
      * It is safest to assume the buffer is an image with sRGB primaries and
@@ -520,7 +521,7 @@
      */
     UNKNOWN = 0x0,
 
-    /*
+    /**
      * Arbitrary dataspace with manually defined characteristics.  Definition
      * for colorspaces or other meaning must be communicated separately.
      *
@@ -533,7 +534,7 @@
      */
     ARBITRARY = 0x1,
 
-    /*
+    /**
      * Color-description aspects
      *
      * The following aspects define various characteristics of the color
@@ -543,7 +544,7 @@
 
     STANDARD_SHIFT = 16,
 
-    /*
+    /**
      * Standard aspect
      *
      * Defines the chromaticity coordinates of the source primaries in terms of
@@ -551,7 +552,7 @@
      */
     STANDARD_MASK = 63 << STANDARD_SHIFT,  // 0x3F
 
-    /*
+    /**
      * Chromacity coordinates are unknown or are determined by the application.
      * Implementations shall use the following suggested standards:
      *
@@ -566,7 +567,7 @@
      */
     STANDARD_UNSPECIFIED = 0 << STANDARD_SHIFT,
 
-    /*
+    /**
      * Primaries:       x       y
      *  green           0.300   0.600
      *  blue            0.150   0.060
@@ -578,7 +579,7 @@
      */
     STANDARD_BT709 = 1 << STANDARD_SHIFT,
 
-    /*
+    /**
      * Primaries:       x       y
      *  green           0.290   0.600
      *  blue            0.150   0.060
@@ -592,7 +593,7 @@
      */
     STANDARD_BT601_625 = 2 << STANDARD_SHIFT,
 
-    /*
+    /**
      * Primaries:       x       y
      *  green           0.290   0.600
      *  blue            0.150   0.060
@@ -604,7 +605,7 @@
      */
     STANDARD_BT601_625_UNADJUSTED = 3 << STANDARD_SHIFT,
 
-    /*
+    /**
      * Primaries:       x       y
      *  green           0.310   0.595
      *  blue            0.155   0.070
@@ -618,7 +619,7 @@
      */
     STANDARD_BT601_525 = 4 << STANDARD_SHIFT,
 
-    /*
+    /**
      * Primaries:       x       y
      *  green           0.310   0.595
      *  blue            0.155   0.070
@@ -630,7 +631,7 @@
      */
     STANDARD_BT601_525_UNADJUSTED = 5 << STANDARD_SHIFT,
 
-    /*
+    /**
      * Primaries:       x       y
      *  green           0.170   0.797
      *  blue            0.131   0.046
@@ -642,7 +643,7 @@
      */
     STANDARD_BT2020 = 6 << STANDARD_SHIFT,
 
-    /*
+    /**
      * Primaries:       x       y
      *  green           0.170   0.797
      *  blue            0.131   0.046
@@ -654,7 +655,7 @@
      */
     STANDARD_BT2020_CONSTANT_LUMINANCE = 7 << STANDARD_SHIFT,
 
-    /*
+    /**
      * Primaries:       x      y
      *  green           0.21   0.71
      *  blue            0.14   0.08
@@ -666,7 +667,7 @@
      */
     STANDARD_BT470M = 8 << STANDARD_SHIFT,
 
-    /*
+    /**
      * Primaries:       x       y
      *  green           0.243   0.692
      *  blue            0.145   0.049
@@ -678,7 +679,7 @@
      */
     STANDARD_FILM = 9 << STANDARD_SHIFT,
 
-    /*
+    /**
      * SMPTE EG 432-1 and SMPTE RP 431-2. (DCI-P3)
      * Primaries:       x       y
      *  green           0.265   0.690
@@ -688,7 +689,7 @@
      */
     STANDARD_DCI_P3 = 10 << STANDARD_SHIFT,
 
-    /*
+    /**
      * Adobe RGB
      * Primaries:       x       y
      *  green           0.210   0.710
@@ -702,7 +703,7 @@
 
     TRANSFER_SHIFT = 22,
 
-    /*
+    /**
      * Transfer aspect
      *
      * Transfer characteristics are the opto-electronic transfer characteristic
@@ -718,7 +719,7 @@
 
     TRANSFER_MASK = 31 << TRANSFER_SHIFT,  // 0x1F
 
-    /*
+    /**
      * Transfer characteristics are unknown or are determined by the
      * application.
      *
@@ -732,7 +733,7 @@
      */
     TRANSFER_UNSPECIFIED = 0 << TRANSFER_SHIFT,
 
-    /*
+    /**
      * Transfer characteristic curve:
      *  E = L
      *      L - luminance of image 0 <= L <= 1 for conventional colorimetry
@@ -740,7 +741,7 @@
      */
     TRANSFER_LINEAR = 1 << TRANSFER_SHIFT,
 
-    /*
+    /**
      * Transfer characteristic curve:
      *
      * E = 1.055 * L^(1/2.4) - 0.055  for 0.0031308 <= L <= 1
@@ -750,7 +751,7 @@
      */
     TRANSFER_SRGB = 2 << TRANSFER_SHIFT,
 
-    /*
+    /**
      * BT.601 525, BT.601 625, BT.709, BT.2020
      *
      * Transfer characteristic curve:
@@ -761,7 +762,7 @@
      */
     TRANSFER_SMPTE_170M = 3 << TRANSFER_SHIFT,
 
-    /*
+    /**
      * Assumed display gamma 2.2.
      *
      * Transfer characteristic curve:
@@ -771,7 +772,7 @@
      */
     TRANSFER_GAMMA2_2 = 4 << TRANSFER_SHIFT,
 
-    /*
+    /**
      *  display gamma 2.6.
      *
      * Transfer characteristic curve:
@@ -781,7 +782,7 @@
      */
     TRANSFER_GAMMA2_6 = 5 << TRANSFER_SHIFT,
 
-    /*
+    /**
      *  display gamma 2.8.
      *
      * Transfer characteristic curve:
@@ -791,7 +792,7 @@
      */
     TRANSFER_GAMMA2_8 = 6 << TRANSFER_SHIFT,
 
-    /*
+    /**
      * SMPTE ST 2084 (Dolby Perceptual Quantizer)
      *
      * Transfer characteristic curve:
@@ -807,7 +808,7 @@
      */
     TRANSFER_ST2084 = 7 << TRANSFER_SHIFT,
 
-    /*
+    /**
      * ARIB STD-B67 Hybrid Log Gamma
      *
      * Transfer characteristic curve:
@@ -825,7 +826,7 @@
 
     RANGE_SHIFT = 27,
 
-    /*
+    /**
      * Range aspect
      *
      * Defines the range of values corresponding to the unit range of 0-1.
@@ -833,7 +834,7 @@
      */
     RANGE_MASK = 7 << RANGE_SHIFT,  // 0x7
 
-    /*
+    /**
      * Range is unknown or are determined by the application.  Implementations
      * shall use the following suggested ranges:
      *
@@ -846,13 +847,13 @@
      */
     RANGE_UNSPECIFIED = 0 << RANGE_SHIFT,
 
-    /*
+    /**
      * Full range uses all values for Y, Cb and Cr from
      * 0 to 2^b-1, where b is the bit depth of the color format.
      */
     RANGE_FULL = 1 << RANGE_SHIFT,
 
-    /*
+    /**
      * Limited range uses values 16/256*2^b to 235/256*2^b for Y, and
      * 1/16*2^b to 15/16*2^b for Cb, Cr, R, G and B, where b is the bit depth of
      * the color format.
@@ -867,7 +868,7 @@
      */
     RANGE_LIMITED = 2 << RANGE_SHIFT,
 
-    /*
+    /**
      * Extended range is used for scRGB. Intended for use with
      * floating point pixel formats. [0.0 - 1.0] is the standard
      * sRGB space. Values outside the range 0.0 - 1.0 can encode
@@ -876,11 +877,11 @@
      */
     RANGE_EXTENDED = 3 << RANGE_SHIFT,
 
-    /*
+    /**
      * Legacy dataspaces
      */
 
-    /*
+    /**
      * sRGB linear encoding:
      *
      * The red, green, and blue components are stored in sRGB space, but
@@ -895,7 +896,7 @@
     V0_SRGB_LINEAR = STANDARD_BT709 | TRANSFER_LINEAR | RANGE_FULL,
 
 
-    /*
+    /**
      * scRGB linear encoding:
      *
      * The red, green, and blue components are stored in extended sRGB space,
@@ -910,7 +911,7 @@
     V0_SCRGB_LINEAR = STANDARD_BT709 | TRANSFER_LINEAR | RANGE_EXTENDED,
 
 
-    /*
+    /**
      * sRGB gamma encoding:
      *
      * The red, green and blue components are stored in sRGB space, and
@@ -928,7 +929,7 @@
     V0_SRGB = STANDARD_BT709 | TRANSFER_SRGB | RANGE_FULL,
 
 
-    /*
+    /**
      * scRGB:
      *
      * The red, green, and blue components are stored in extended sRGB space,
@@ -942,7 +943,7 @@
      */
     V0_SCRGB = STANDARD_BT709 | TRANSFER_SRGB | RANGE_EXTENDED,
 
-    /*
+    /**
      * YCbCr Colorspaces
      * -----------------
      *
@@ -953,7 +954,7 @@
      * at the source as a function of linear optical intensity (luminance).
      */
 
-    /*
+    /**
      * JPEG File Interchange Format (JFIF)
      *
      * Same model as BT.601-625, but all values (Y, Cb, Cr) range from 0 to 255
@@ -964,7 +965,7 @@
 
     V0_JFIF = STANDARD_BT601_625 | TRANSFER_SMPTE_170M | RANGE_FULL,
 
-    /*
+    /**
      * ITU-R Recommendation 601 (BT.601) - 625-line
      *
      * Standard-definition television, 625 Lines (PAL)
@@ -976,7 +977,7 @@
     V0_BT601_625 = STANDARD_BT601_625 | TRANSFER_SMPTE_170M | RANGE_LIMITED,
 
 
-    /*
+    /**
      * ITU-R Recommendation 601 (BT.601) - 525-line
      *
      * Standard-definition television, 525 Lines (NTSC)
@@ -987,7 +988,7 @@
 
     V0_BT601_525 = STANDARD_BT601_525 | TRANSFER_SMPTE_170M | RANGE_LIMITED,
 
-    /*
+    /**
      * ITU-R Recommendation 709 (BT.709)
      *
      * High-definition television
@@ -999,7 +1000,7 @@
     V0_BT709 = STANDARD_BT709 | TRANSFER_SMPTE_170M | RANGE_LIMITED,
 
 
-    /*
+    /**
      * SMPTE EG 432-1 and SMPTE RP 431-2.
      *
      * Digital Cinema DCI-P3
@@ -1009,7 +1010,7 @@
     DCI_P3_LINEAR = STANDARD_DCI_P3 | TRANSFER_LINEAR | RANGE_FULL,
 
 
-    /*
+    /**
      * SMPTE EG 432-1 and SMPTE RP 431-2.
      *
      * Digital Cinema DCI-P3
@@ -1021,7 +1022,7 @@
     DCI_P3 = STANDARD_DCI_P3 | TRANSFER_GAMMA2_6 | RANGE_FULL,
 
 
-    /*
+    /**
      * Display P3
      *
      * Display P3 uses same primaries and white-point as DCI-P3
@@ -1030,7 +1031,7 @@
     DISPLAY_P3_LINEAR = STANDARD_DCI_P3 | TRANSFER_LINEAR | RANGE_FULL,
 
 
-    /*
+    /**
      * Display P3
      *
      * Use same primaries and white-point as DCI-P3
@@ -1039,7 +1040,7 @@
     DISPLAY_P3 = STANDARD_DCI_P3 | TRANSFER_SRGB | RANGE_FULL,
 
 
-    /*
+    /**
      * Adobe RGB
      *
      * Use full range, gamma 2.2 transfer and Adobe RGB primaries
@@ -1049,7 +1050,7 @@
     ADOBE_RGB = STANDARD_ADOBE_RGB | TRANSFER_GAMMA2_2 | RANGE_FULL,
 
 
-    /*
+    /**
      * ITU-R Recommendation 2020 (BT.2020)
      *
      * Ultra High-definition television
@@ -1059,7 +1060,7 @@
     BT2020_LINEAR = STANDARD_BT2020 | TRANSFER_LINEAR | RANGE_FULL,
 
 
-    /*
+    /**
      * ITU-R Recommendation 2020 (BT.2020)
      *
      * Ultra High-definition television
@@ -1068,7 +1069,7 @@
      */
     BT2020 = STANDARD_BT2020 | TRANSFER_SMPTE_170M | RANGE_FULL,
 
-    /*
+    /**
      * ITU-R Recommendation 2020 (BT.2020)
      *
      * Ultra High-definition television
@@ -1078,11 +1079,11 @@
     BT2020_PQ = STANDARD_BT2020 | TRANSFER_ST2084 | RANGE_FULL,
 
 
-    /*
+    /**
      * Data spaces for non-color formats
      */
 
-    /*
+    /**
      * The buffer contains depth ranging measurements from a depth camera.
      * This value is valid with formats:
      *    HAL_PIXEL_FORMAT_Y16: 16-bit samples, consisting of a depth measurement
@@ -1103,7 +1104,7 @@
     DEPTH = 0x1000,
 
 
-    /*
+    /**
      * The buffer contains sensor events from sensor direct report.
      * This value is valid with formats:
      *    HAL_PIXEL_FORMAT_BLOB: an array of sensor event structure that forms
@@ -1113,7 +1114,7 @@
     SENSOR = 0x1001
 };
 
-/*
+/**
  * Color modes that may be supported by a display.
  *
  * Definitions:
@@ -1159,7 +1160,7 @@
  */
 @export(name="android_color_mode_t", value_prefix="HAL_COLOR_MODE_")
 enum ColorMode : int32_t {
-  /*
+  /**
    * DEFAULT is the "native" gamut of the display.
    * White Point: Vendor/OEM defined
    * Panel Gamma: Vendor/OEM defined (typically 2.2)
@@ -1167,7 +1168,7 @@
    */
   NATIVE = 0,
 
-  /*
+  /**
    * STANDARD_BT601_625 corresponds with display
    * settings that implement the ITU-R Recommendation BT.601
    * or Rec 601. Using 625 line version
@@ -1193,7 +1194,7 @@
    */
   STANDARD_BT601_625 = 1,
 
-  /*
+  /**
    * Primaries:
    *                  x       y
    *  green           0.290   0.600
@@ -1213,7 +1214,7 @@
    */
   STANDARD_BT601_625_UNADJUSTED = 2,
 
-  /*
+  /**
    * Primaries:
    *                  x       y
    *  green           0.310   0.595
@@ -1235,7 +1236,7 @@
    */
   STANDARD_BT601_525 = 3,
 
-  /*
+  /**
    * Primaries:
    *                  x       y
    *  green           0.310   0.595
@@ -1255,7 +1256,7 @@
    */
   STANDARD_BT601_525_UNADJUSTED = 4,
 
-  /*
+  /**
    * REC709 corresponds with display settings that implement
    * the ITU-R Recommendation BT.709 / Rec. 709 for high-definition television.
    * Rendering Intent: Colorimetric
@@ -1283,7 +1284,7 @@
    */
   STANDARD_BT709 = 5,
 
-  /*
+  /**
    * DCI_P3 corresponds with display settings that implement
    * SMPTE EG 432-1 and SMPTE RP 431-2
    * Rendering Intent: Colorimetric
@@ -1298,7 +1299,7 @@
    */
   DCI_P3 = 6,
 
-  /*
+  /**
    * SRGB corresponds with display settings that implement
    * the sRGB color space. Uses the same primaries as ITU-R Recommendation
    * BT.709
@@ -1326,7 +1327,7 @@
    */
   SRGB = 7,
 
-  /*
+  /**
    * ADOBE_RGB corresponds with the RGB color space developed
    * by Adobe Systems, Inc. in 1998.
    * Rendering Intent: Colorimetric
@@ -1341,7 +1342,7 @@
    */
   ADOBE_RGB = 8,
 
-  /*
+  /**
    * DISPLAY_P3 is a color space that uses the DCI_P3 primaries,
    * the D65 white point and the SRGB transfer functions.
    * Rendering Intent: Colorimetric
@@ -1364,46 +1365,47 @@
   DISPLAY_P3 = 9
 };
 
-/*
+/**
  * Color transforms that may be applied by hardware composer to the whole
  * display.
  */
 @export(name="android_color_transform_t", value_prefix="HAL_COLOR_TRANSFORM_")
 enum ColorTransform : int32_t {
-    /* Applies no transform to the output color */
+    /** Applies no transform to the output color */
     IDENTITY = 0,
 
-    /* Applies an arbitrary transform defined by a 4x4 affine matrix */
+    /** Applies an arbitrary transform defined by a 4x4 affine matrix */
     ARBITRARY_MATRIX = 1,
 
-    /* Applies a transform that inverts the value or luminance of the color, but
+    /**
+     * Applies a transform that inverts the value or luminance of the color, but
      * does not modify hue or saturation */
     VALUE_INVERSE = 2,
 
-    /* Applies a transform that maps all colors to shades of gray */
+    /** Applies a transform that maps all colors to shades of gray */
     GRAYSCALE = 3,
 
-    /* Applies a transform which corrects for protanopic color blindness */
+    /** Applies a transform which corrects for protanopic color blindness */
     CORRECT_PROTANOPIA = 4,
 
-    /* Applies a transform which corrects for deuteranopic color blindness */
+    /** Applies a transform which corrects for deuteranopic color blindness */
     CORRECT_DEUTERANOPIA = 5,
 
-    /* Applies a transform which corrects for tritanopic color blindness */
+    /** Applies a transform which corrects for tritanopic color blindness */
     CORRECT_TRITANOPIA = 6
 };
 
-/*
+/**
  * Supported HDR formats. Must be kept in sync with equivalents in Display.java.
  */
 @export(name="android_hdr_t", value_prefix="HAL_HDR_")
 enum Hdr : int32_t {
-    /* Device supports Dolby Vision HDR */
+    /** Device supports Dolby Vision HDR */
     DOLBY_VISION = 1,
 
-    /* Device supports HDR10 */
+    /** Device supports HDR10 */
     HDR10 = 2,
 
-    /* Device supports hybrid log-gamma HDR */
+    /** Device supports hybrid log-gamma HDR */
     HLG = 3
 };
diff --git a/graphics/composer/2.1/IComposer.hal b/graphics/composer/2.1/IComposer.hal
index 553a537..b3ac761 100644
--- a/graphics/composer/2.1/IComposer.hal
+++ b/graphics/composer/2.1/IComposer.hal
@@ -19,7 +19,7 @@
 import IComposerClient;
 
 interface IComposer {
-    /*
+    /**
      * Optional capabilities which may be supported by some devices. The
      * particular set of supported capabilities for a given device may be
      * retrieved using getCapabilities.
@@ -27,7 +27,7 @@
     enum Capability : int32_t {
         INVALID = 0,
 
-        /*
+        /**
          * Specifies that the device supports sideband stream layers, for
          * which buffer content updates and other synchronization will not be
          * provided through the usual validate/present cycle and must be
@@ -37,7 +37,7 @@
          */
         SIDEBAND_STREAM = 1,
 
-        /*
+        /**
          * Specifies that the device will apply a color transform even when
          * either the client or the device has chosen that all layers should
          * be composed by the client. This will prevent the client from
@@ -46,7 +46,7 @@
         SKIP_CLIENT_COLOR_TRANSFORM = 2,
     };
 
-    /*
+    /**
      * Provides a list of supported capabilities (as described in the
      * definition of Capability above). This list must not change after
      * initialization.
@@ -58,7 +58,7 @@
     @callflow(next="*")
     getCapabilities() generates (vec<Capability> capabilities);
 
-    /*
+    /**
      * Retrieves implementation-defined debug information, which will be
      * displayed during, for example, `dumpsys SurfaceFlinger`.
      *
@@ -69,7 +69,7 @@
     @callflow(next="*")
     dumpDebugInfo() generates (string debugInfo);
 
-    /*
+    /**
      * Creates a client of the composer. All resources created by the client
      * are owned by the client and are only visible to the client.
      *
diff --git a/graphics/composer/2.1/IComposerCallback.hal b/graphics/composer/2.1/IComposerCallback.hal
index 541d7eb..ab74c30 100644
--- a/graphics/composer/2.1/IComposerCallback.hal
+++ b/graphics/composer/2.1/IComposerCallback.hal
@@ -20,13 +20,13 @@
     enum Connection : int32_t {
         INVALID = 0,
 
-        /* The display has been connected */
+        /** The display has been connected */
         CONNECTED = 1,
-        /* The display has been disconnected */
+        /** The display has been disconnected */
         DISCONNECTED = 2,
     };
 
-    /*
+    /**
      * Notifies the client that the given display has either been connected or
      * disconnected. Every active display (even a built-in physical display)
      * must trigger at least one hotplug notification, even if it only occurs
@@ -47,7 +47,7 @@
     @callflow(next="*")
     onHotplug(Display display, Connection connected);
 
-    /*
+    /**
      * Notifies the client to trigger a screen refresh. This forces all layer
      * state for this display to be resent, and the display to be validated
      * and presented, even if there have been no changes.
@@ -61,7 +61,7 @@
     @callflow(next="*")
     oneway onRefresh(Display display);
 
-    /*
+    /**
      * Notifies the client that a vsync event has occurred. This callback must
      * only be triggered when vsync is enabled for this display (through
      * setVsyncEnabled).
diff --git a/graphics/composer/2.1/IComposerClient.hal b/graphics/composer/2.1/IComposerClient.hal
index 107ac5e..85572d4 100644
--- a/graphics/composer/2.1/IComposerClient.hal
+++ b/graphics/composer/2.1/IComposerClient.hal
@@ -20,18 +20,18 @@
 import IComposerCallback;
 
 interface IComposerClient {
-    /* Display attributes queryable through getDisplayAttribute. */
+    /** Display attributes queryable through getDisplayAttribute. */
     enum Attribute : int32_t {
         INVALID = 0,
 
-        /* Dimensions in pixels */
+        /** Dimensions in pixels */
         WIDTH = 1,
         HEIGHT = 2,
 
-        /* Vsync period in nanoseconds */
+        /** Vsync period in nanoseconds */
         VSYNC_PERIOD = 3,
 
-        /*
+        /**
          * Dots per thousand inches (DPI * 1000). Scaling by 1000 allows these
          * numbers to be stored in an int32_t without losing too much
          * precision. If the DPI for a configuration is unavailable or is
@@ -41,15 +41,15 @@
         DPI_Y = 5,
     };
 
-    /* Display requests returned by getDisplayRequests. */
+    /** Display requests returned by getDisplayRequests. */
     enum DisplayRequest : uint32_t {
-        /*
+        /**
          * Instructs the client to provide a new client target buffer, even if
          * no layers are marked for client composition.
          */
         FLIP_CLIENT_TARGET = 1 << 0,
 
-        /*
+        /**
          * Instructs the client to write the result of client composition
          * directly into the virtual display output buffer. If any of the
          * layers are not marked as Composition::CLIENT or the given display
@@ -58,9 +58,9 @@
         WRITE_CLIENT_TARGET_TO_OUTPUT = 1 << 1,
     };
 
-    /* Layer requests returned from getDisplayRequests. */
+    /** Layer requests returned from getDisplayRequests. */
     enum LayerRequest : uint32_t {
-        /*
+        /**
          * The client must clear its target with transparent pixels where
          * this layer would be. The client may ignore this request if the
          * layer must be blended.
@@ -68,24 +68,24 @@
         CLEAR_CLIENT_TARGET = 1 << 0,
     };
 
-    /* Power modes for use with setPowerMode. */
+    /** Power modes for use with setPowerMode. */
     enum PowerMode : int32_t {
-        /* The display is fully off (blanked). */
+        /** The display is fully off (blanked). */
         OFF = 0,
 
-        /*
+        /**
          * These are optional low power modes. getDozeSupport may be called to
          * determine whether a given display supports these modes.
          */
 
-        /*
+        /**
          * The display is turned on and configured in a low power state that
          * is suitable for presenting ambient information to the user,
          * possibly with lower fidelity than ON, but with greater efficiency.
          */
         DOZE = 1,
 
-        /*
+        /**
          * The display is configured as in DOZE but may stop applying display
          * updates from the client. This is effectively a hint to the device
          * that drawing to the display has been suspended and that the the
@@ -100,40 +100,40 @@
          */
         DOZE_SUSPEND = 3,
 
-        /* The display is fully on. */
+        /** The display is fully on. */
         ON = 2,
     };
 
-    /* Vsync values passed to setVsyncEnabled. */
+    /** Vsync values passed to setVsyncEnabled. */
     enum Vsync : int32_t {
         INVALID = 0,
 
-        /* Enable vsync. */
+        /** Enable vsync. */
         ENABLE = 1,
 
-        /* Disable vsync. */
+        /** Disable vsync. */
         DISABLE = 2,
     };
 
-    /* Blend modes, settable per layer. */
+    /** Blend modes, settable per layer. */
     enum BlendMode : int32_t {
         INVALID = 0,
 
-        /* colorOut = colorSrc */
+        /** colorOut = colorSrc */
         NONE = 1,
 
-        /* colorOut = colorSrc + colorDst * (1 - alphaSrc) */
+        /** colorOut = colorSrc + colorDst * (1 - alphaSrc) */
         PREMULTIPLIED = 2,
 
-        /* colorOut = colorSrc * alphaSrc + colorDst * (1 - alphaSrc) */
+        /** colorOut = colorSrc * alphaSrc + colorDst * (1 - alphaSrc) */
         COVERAGE = 3,
     };
 
-    /* Possible composition types for a given layer. */
+    /** Possible composition types for a given layer. */
     enum Composition : int32_t {
         INVALID = 0,
 
-        /*
+        /**
          * The client must composite this layer into the client target buffer
          * (provided to the device through setClientTarget).
          *
@@ -142,7 +142,7 @@
          */
         CLIENT = 1,
 
-        /*
+        /**
          * The device must handle the composition of this layer through a
          * hardware overlay or other similar means.
          *
@@ -151,7 +151,7 @@
          */
         DEVICE = 2,
 
-        /*
+        /**
          * The device must render this layer using the color set through
          * setLayerColor. If this functionality is not supported on a layer
          * that the client sets to SOLID_COLOR, the device must request that
@@ -163,7 +163,7 @@
          */
         SOLID_COLOR = 3,
 
-        /*
+        /**
          * Similar to DEVICE, but the position of this layer may also be set
          * asynchronously through setCursorPosition. If this functionality is
          * not supported on a layer that the client sets to CURSOR, the device
@@ -177,7 +177,7 @@
          */
         CURSOR = 4,
 
-        /*
+        /**
          * The device must handle the composition of this layer, as well as
          * its buffer updates and content synchronization. Only supported on
          * devices which provide Capability::SIDEBAND_STREAM.
@@ -189,26 +189,26 @@
         SIDEBAND = 5,
     };
 
-    /* Display types returned by getDisplayType. */
+    /** Display types returned by getDisplayType. */
     enum DisplayType : int32_t {
         INVALID = 0,
 
-        /*
+        /**
          * All physical displays, including both internal displays and
          * hotpluggable external displays.
          */
         PHYSICAL = 1,
 
-        /* Virtual displays created by createVirtualDisplay. */
+        /** Virtual displays created by createVirtualDisplay. */
         VIRTUAL = 2,
     };
 
-    /* Special index values (always negative) for command queue commands. */
+    /** Special index values (always negative) for command queue commands. */
     enum HandleIndex : int32_t {
-        /* No handle */
+        /** No handle */
         EMPTY = -1,
 
-        /* Use cached handle */
+        /** Use cached handle */
         CACHED = -2,
     };
 
@@ -233,7 +233,7 @@
         uint8_t a;
     };
 
-    /*
+    /**
      * Provides a IComposerCallback object for the device to call.
      *
      * This function must be called only once.
@@ -244,7 +244,7 @@
     @callflow(next="*")
     registerCallback(IComposerCallback callback);
 
-    /*
+    /**
      * Returns the maximum number of virtual displays supported by this device
      * (which may be 0). The client must not attempt to create more than this
      * many virtual displays on this device. This number must not change for
@@ -255,7 +255,7 @@
     @callflow(next="*")
     getMaxVirtualDisplayCount() generates (uint32_t count);
 
-    /*
+    /**
      * Creates a new virtual display with the given width and height. The
      * format passed into this function is the default format requested by the
      * consumer of the virtual display output buffers.
@@ -286,7 +286,7 @@
                          Display display,
                          PixelFormat format);
 
-    /*
+    /**
      * Destroys a virtual display. After this call all resources consumed by
      * this display may be freed by the device and any operations performed on
      * this display must fail.
@@ -300,7 +300,7 @@
     @callflow(next="*")
     destroyVirtualDisplay(Display display) generates (Error error);
 
-    /*
+    /**
      * Creates a new layer on the given display.
      *
      * @param display is the display on which to create the layer.
@@ -317,7 +317,7 @@
      generates (Error error,
                 Layer layer);
 
-    /*
+    /**
      * Destroys the given layer.
      *
      * @param display is the display on which the layer was created.
@@ -329,7 +329,7 @@
     @callflow(next="*")
     destroyLayer(Display display, Layer layer) generates (Error error);
 
-    /*
+    /**
      * Retrieves which display configuration is currently active.
      *
      * If no display configuration is currently active, this function must
@@ -346,7 +346,7 @@
     @callflow(next="*")
     getActiveConfig(Display display) generates (Error error, Config config);
 
-    /*
+    /**
      * Returns whether a client target with the given properties can be
      * handled by the device.
      *
@@ -373,7 +373,7 @@
                            Dataspace dataspace)
                 generates (Error error);
 
-    /*
+    /**
      * Returns the color modes supported on this display.
      *
      * All devices must support at least ColorMode::NATIVE.
@@ -388,7 +388,7 @@
        generates (Error error,
                   vec<ColorMode> modes);
 
-    /*
+    /**
      * Returns a display attribute value for a particular display
      * configuration.
      *
@@ -410,7 +410,7 @@
              generates (Error error,
                         int32_t value);
 
-    /*
+    /**
      * Returns handles for all of the valid display configurations on this
      * display.
      *
@@ -424,7 +424,7 @@
            generates (Error error,
                       vec<Config> configs);
 
-    /*
+    /**
      * Returns a human-readable version of the display's name.
      *
      * @return error is NONE upon success. Otherwise,
@@ -434,7 +434,7 @@
     @callflow(next="*")
     getDisplayName(Display display) generates (Error error, string name);
 
-    /*
+    /**
      * Returns whether the given display is a physical or virtual display.
      *
      * @param display is the display to query.
@@ -445,7 +445,7 @@
     @callflow(next="*")
     getDisplayType(Display display) generates (Error error, DisplayType type);
 
-    /*
+    /**
      * Returns whether the given display supports PowerMode::DOZE and
      * PowerMode::DOZE_SUSPEND. DOZE_SUSPEND may not provide any benefit over
      * DOZE (see the definition of PowerMode for more information), but if
@@ -460,7 +460,7 @@
     @callflow(next="*")
     getDozeSupport(Display display) generates (Error error, bool support);
 
-    /*
+    /**
      * Returns the high dynamic range (HDR) capabilities of the given display,
      * which are invariant with regard to the active configuration.
      *
@@ -486,7 +486,7 @@
                        float maxAverageLuminance,
                        float minLuminance);
 
-    /*
+    /**
      * Set the number of client target slots to be reserved.
      *
      * @param display is the display to which the slots are reserved.
@@ -500,7 +500,7 @@
                              uint32_t clientTargetSlotCount)
                   generates (Error error);
 
-    /*
+    /**
      * Sets the active configuration for this display. Upon returning, the
      * given display configuration must be active and remain so until either
      * this function is called again or the display is disconnected.
@@ -515,7 +515,7 @@
     @callflow(next="*")
     setActiveConfig(Display display, Config config) generates (Error error);
 
-    /*
+    /**
      * Sets the color mode of the given display.
      *
      * Upon returning from this function, the color mode change must have
@@ -534,7 +534,7 @@
     @callflow(next="*")
     setColorMode(Display display, ColorMode mode) generates (Error error);
 
-    /*
+    /**
      * Sets the power mode of the given display. The transition must be
      * complete when this function returns. It is valid to call this function
      * multiple times with the same power mode.
@@ -553,7 +553,7 @@
     @callflow(next="*")
     setPowerMode(Display display, PowerMode mode) generates (Error error);
 
-    /*
+    /**
      * Enables or disables the vsync signal for the given display. Virtual
      * displays never generate vsync callbacks, and any attempt to enable
      * vsync for a virtual display though this function must succeed and have
@@ -568,7 +568,7 @@
     @callflow(next="*")
     setVsyncEnabled(Display display, Vsync enabled) generates (Error error);
 
-    /*
+    /**
      * Sets the input command message queue.
      *
      * @param descriptor is the descriptor of the input command message queue.
@@ -579,7 +579,7 @@
     setInputCommandQueue(fmq_sync<uint32_t> descriptor)
               generates (Error error);
 
-    /*
+    /**
      * Gets the output command message queue.
      *
      * This function must only be called inside executeCommands closure.
@@ -593,7 +593,7 @@
               generates (Error error,
                          fmq_sync<uint32_t> descriptor);
 
-    /*
+    /**
      * Executes commands from the input command message queue. Return values
      * generated by the input commands are written to the output command
      * message queue in the form of value commands.
@@ -620,7 +620,7 @@
                     uint32_t outLength,
                     vec<handle> outHandles);
 
-    /*
+    /**
      * SELECT_DISPLAY has this pseudo prototype
      *
      *   selectDisplay(Display display);
@@ -1099,18 +1099,18 @@
         OPCODE_SHIFT                       = 16,
         OPCODE_MASK                        = 0xffff << OPCODE_SHIFT,
 
-        /* special commands */
+        /** special commands */
         SELECT_DISPLAY                     = 0x000 << OPCODE_SHIFT,
         SELECT_LAYER                       = 0x001 << OPCODE_SHIFT,
 
-        /* value commands (for return values) */
+        /** value commands (for return values) */
         SET_ERROR                          = 0x100 << OPCODE_SHIFT,
         SET_CHANGED_COMPOSITION_TYPES      = 0x101 << OPCODE_SHIFT,
         SET_DISPLAY_REQUESTS               = 0x102 << OPCODE_SHIFT,
         SET_PRESENT_FENCE                  = 0x103 << OPCODE_SHIFT,
         SET_RELEASE_FENCES                 = 0x104 << OPCODE_SHIFT,
 
-        /* display commands */
+        /** display commands */
         SET_COLOR_TRANSFORM                = 0x200 << OPCODE_SHIFT,
         SET_CLIENT_TARGET                  = 0x201 << OPCODE_SHIFT,
         SET_OUTPUT_BUFFER                  = 0x202 << OPCODE_SHIFT,
@@ -1118,12 +1118,12 @@
         ACCEPT_DISPLAY_CHANGES             = 0x204 << OPCODE_SHIFT,
         PRESENT_DISPLAY                    = 0x205 << OPCODE_SHIFT,
 
-        /* layer commands (VALIDATE_DISPLAY not required) */
+        /** layer commands (VALIDATE_DISPLAY not required) */
         SET_LAYER_CURSOR_POSITION          = 0x300 << OPCODE_SHIFT,
         SET_LAYER_BUFFER                   = 0x301 << OPCODE_SHIFT,
         SET_LAYER_SURFACE_DAMAGE           = 0x302 << OPCODE_SHIFT,
 
-        /* layer state commands (VALIDATE_DISPLAY required) */
+        /** layer state commands (VALIDATE_DISPLAY required) */
         SET_LAYER_BLEND_MODE               = 0x400 << OPCODE_SHIFT,
         SET_LAYER_COLOR                    = 0x401 << OPCODE_SHIFT,
         SET_LAYER_COMPOSITION_TYPE         = 0x402 << OPCODE_SHIFT,
@@ -1136,7 +1136,7 @@
         SET_LAYER_VISIBLE_REGION           = 0x409 << OPCODE_SHIFT,
         SET_LAYER_Z_ORDER                  = 0x40a << OPCODE_SHIFT,
 
-        /* 0x800 - 0xfff are reserved for vendor extensions */
-        /* 0x1000 - 0xffff are reserved */
+        /** 0x800 - 0xfff are reserved for vendor extensions */
+        /** 0x1000 - 0xffff are reserved */
     };
 };
diff --git a/graphics/composer/2.1/types.hal b/graphics/composer/2.1/types.hal
index e54031e..9f0dd8b 100644
--- a/graphics/composer/2.1/types.hal
+++ b/graphics/composer/2.1/types.hal
@@ -16,17 +16,17 @@
 
 package android.hardware.graphics.composer@2.1;
 
-/* Return codes from all functions. */
+/** Return codes from all functions. */
 enum Error : int32_t {
-    NONE            = 0, /* no error */
-    BAD_CONFIG      = 1, /* invalid Config */
-    BAD_DISPLAY     = 2, /* invalid Display */
-    BAD_LAYER       = 3, /* invalid Layer */
-    BAD_PARAMETER   = 4, /* invalid width, height, etc. */
-    /* 5 is reserved */
-    NO_RESOURCES    = 6, /* temporary failure due to resource contention */
-    NOT_VALIDATED   = 7, /* validateDisplay has not been called */
-    UNSUPPORTED     = 8, /* permanent failure */
+    NONE            = 0, /** no error */
+    BAD_CONFIG      = 1, /** invalid Config */
+    BAD_DISPLAY     = 2, /** invalid Display */
+    BAD_LAYER       = 3, /** invalid Layer */
+    BAD_PARAMETER   = 4, /** invalid width, height, etc. */
+    /** 5 is reserved */
+    NO_RESOURCES    = 6, /** temporary failure due to resource contention */
+    NOT_VALIDATED   = 7, /** validateDisplay has not been called */
+    UNSUPPORTED     = 8, /** permanent failure */
 };
 
 typedef uint32_t Config;
diff --git a/graphics/mapper/2.0/IMapper.hal b/graphics/mapper/2.0/IMapper.hal
index 21a6dfa..573dcd0 100644
--- a/graphics/mapper/2.0/IMapper.hal
+++ b/graphics/mapper/2.0/IMapper.hal
@@ -27,7 +27,7 @@
         int32_t height;
     };
 
-    /*
+    /**
      * Adds a reference to the given buffer handle.
      *
      * A buffer handle received from a remote process or exported by
@@ -49,7 +49,7 @@
     @callflow(next="*")
     retain(handle bufferHandle) generates (Error error);
 
-    /*
+    /**
      * Removes a reference from the given buffer buffer.
      *
      * If no references remain, the buffer handle must be freed with
@@ -65,7 +65,7 @@
     @exit
     release(handle bufferHandle) generates (Error error);
 
-    /*
+    /**
      * Gets the width and height of the buffer in pixels.
      *
      * See IAllocator::BufferDescriptorInfo for more information.
@@ -82,7 +82,7 @@
                   uint32_t width,
                   uint32_t height);
 
-    /*
+    /**
      * Gets the format of the buffer.
      *
      * See IAllocator::BufferDescriptorInfo for more information.
@@ -97,7 +97,7 @@
         generates (Error error,
                    PixelFormat format);
 
-    /*
+    /**
      * Gets the number of layers of the buffer.
      *
      * See IAllocator::BufferDescriptorInfo for more information.
@@ -112,7 +112,7 @@
        generates (Error error,
                   uint32_t layerCount);
 
-    /*
+    /**
      * Gets the producer usage flags which were used to allocate this buffer.
      *
      * See IAllocator::BufferDescriptorInfo for more information.
@@ -128,7 +128,7 @@
               generates (Error error,
                          uint64_t usageMask);
 
-    /*
+    /**
      * Gets the consumer usage flags which were used to allocate this buffer.
      *
      * See IAllocator::BufferDescriptorInfo for more information.
@@ -144,7 +144,7 @@
               generates (Error error,
                          uint64_t usageMask);
 
-    /*
+    /**
      * Gets a value that uniquely identifies the backing store of the given
      * buffer.
      *
@@ -165,7 +165,7 @@
          generates (Error error,
                     BackingStore store);
 
-    /*
+    /**
      * Gets the stride of the buffer in pixels.
      *
      * The stride is the offset in pixel-sized elements between the same
@@ -185,7 +185,7 @@
         generates (Error error,
                    uint32_t stride);
 
-    /*
+    /**
      * Locks the given buffer for the specified CPU usage.
      *
      * Exactly one of producerUsageMask and consumerUsageMask must be 0. The
@@ -247,7 +247,7 @@
         generates (Error error,
                    pointer data);
 
-    /*
+    /**
      * This is largely the same as lock(), except that instead of returning a
      * pointer directly to the buffer data, it returns an FlexLayout struct
      * describing how to access the data planes.
@@ -296,7 +296,7 @@
         generates (Error error,
                    FlexLayout layout);
 
-    /*
+    /**
      * This function indicates to the device that the client will be done with
      * the buffer when releaseFence signals.
      *
diff --git a/graphics/mapper/2.0/types.hal b/graphics/mapper/2.0/types.hal
index aa33141..2946e85 100644
--- a/graphics/mapper/2.0/types.hal
+++ b/graphics/mapper/2.0/types.hal
@@ -16,7 +16,7 @@
 
 package android.hardware.graphics.mapper@2.0;
 
-/*
+/**
  * Structures for describing flexible YUVA/RGBA formats for consumption by
  * applications. Such flexible formats contain a plane for each component (e.g.
  * red, green, blue), where each plane is laid out in a grid-like pattern
@@ -49,19 +49,19 @@
  */
 
 enum FlexComponent : int32_t {
-    Y  = 1 << 0, /* luma */
-    CB = 1 << 1, /* chroma blue */
-    CR = 1 << 2, /* chroma red */
+    Y  = 1 << 0, /** luma */
+    CB = 1 << 1, /** chroma blue */
+    CR = 1 << 2, /** chroma red */
 
-    R  = 1 << 10, /* red */
-    G  = 1 << 11, /* green */
-    B  = 1 << 12, /* blue */
+    R  = 1 << 10, /** red */
+    G  = 1 << 11, /** green */
+    B  = 1 << 12, /** blue */
 
-    A  = 1 << 30, /* alpha */
+    A  = 1 << 30, /** alpha */
 };
 
 enum FlexFormat : int32_t {
-    /* not a flexible format */
+    /** not a flexible format */
     INVALID = 0x0,
 
     Y       = FlexComponent:Y,
@@ -73,38 +73,38 @@
 };
 
 struct FlexPlane {
-    /* Pointer to the first byte of the top-left pixel of the plane. */
+    /** Pointer to the first byte of the top-left pixel of the plane. */
     pointer topLeft;
 
     FlexComponent component;
 
-    /*
+    /**
      * Bits allocated for the component in each pixel. Must be a positive
      * multiple of 8.
      */
     int32_t bitsPerComponent;
 
-    /*
+    /**
      * Number of the most significant bits used in the format for this
      * component. Must be between 1 and bitsPerComponent, inclusive.
      */
     int32_t bitsUsed;
 
-    /* Horizontal increment. */
+    /** Horizontal increment. */
     int32_t hIncrement;
-    /* Vertical increment. */
+    /** Vertical increment. */
     int32_t vIncrement;
-    /* Horizontal subsampling. Must be a positive power of 2. */
+    /** Horizontal subsampling. Must be a positive power of 2. */
     int32_t hSubsampling;
-    /* Vertical subsampling. Must be a positive power of 2. */
+    /** Vertical subsampling. Must be a positive power of 2. */
     int32_t vSubsampling;
 };
 
 struct FlexLayout {
-    /* The kind of flexible format. */
+    /** The kind of flexible format. */
     FlexFormat format;
 
-    /*
+    /**
      * A plane for each component; ordered in increasing component value
      * order. E.g. FlexFormat::RGBA maps 0 -> R, 1 -> G, etc.  Can have size 0
      * for FlexFormat::INVALID.
@@ -112,5 +112,5 @@
     vec<FlexPlane> planes;
 };
 
-/* Backing store ID of a buffer. See IMapper::getBackingStore. */
+/** Backing store ID of a buffer. See IMapper::getBackingStore. */
 typedef uint64_t BackingStore;
diff --git a/health/1.0/types.hal b/health/1.0/types.hal
index c5b5cc1..377d1bd 100644
--- a/health/1.0/types.hal
+++ b/health/1.0/types.hal
@@ -16,7 +16,7 @@
 
 package android.hardware.health@1.0;
 
-/*
+/**
  * Possible return values for optional HAL method(s) like
  * IHealth::energyCounter()
  */
@@ -26,7 +26,7 @@
     UNKNOWN,
 };
 
-/*
+/**
  * Possible values for Battery Status.
  * Note: These are currently in sync with BatteryManager and must not
  * be extended / altered.
@@ -36,7 +36,7 @@
     UNKNOWN = 1,
     CHARGING = 2,
     DISCHARGING = 3,
-    /*
+    /**
      * Battery is *not* charging - special case when charger is present
      * but battery isn't charging
      */
@@ -44,7 +44,7 @@
     FULL = 5,
 };
 
-/*
+/**
  * Possible values for Battery Health.
  * Note: These are currently in sync with BatteryManager and must not
  * be extended / altered.
@@ -56,7 +56,7 @@
     OVERHEAT = 3,
     DEAD = 4,
     OVER_VOLTAGE = 5,
-    /*
+    /**
      * Battery experienced an unknown/unspecifid failure.
      */
     UNSPECIFIED_FAILURE = 6,
@@ -65,149 +65,149 @@
 
 struct HealthConfig {
 
-    /*
+    /**
      * periodicChoresIntervalFast is used while the device is not in
      * suspend, or in suspend and connected to a charger (to watch for battery
      * overheat due to charging)
      */
     int32_t periodicChoresIntervalFast;
 
-    /*
+    /**
      * periodicChoresIntervalSlow is used when the device is in suspend and
      * not connected to a charger (to watch for a battery drained to zero
      * remaining capacity).
      */
     int32_t periodicChoresIntervalSlow;
 
-    /*
+    /**
      * power_supply sysfs attribute file paths. Set these to specific paths
      * to use for the associated battery parameters. Clients must search
      * for appropriate power_supply attribute files to use, for any paths
      * left empty after the HAL is initialized.
      */
 
-    /*
+    /**
      * batteryStatusPath - file path to read battery charging status.
      * (POWER_SUPPLY_PROP_STATUS)
      */
     string batteryStatusPath;
 
 
-    /*
+    /**
      * batteryHealthPath - file path to read battery health.
      * (POWER_SUPPLY_PROP_HEALTH)
      */
     string batteryHealthPath;
 
-    /*
+    /**
      * batteryPresentPath - file path to read battery present status.
      * (POWER_SUPPLY_PROP_PRESENT)
      */
     string batteryPresentPath;
 
 
-    /*
+    /**
      * batteryCapacityPath - file path to read remaining battery capacity.
      * (POWER_SUPPLY_PROP_CAPACITY)
      */
     string batteryCapacityPath;
 
-    /*
+    /**
      * batteryVoltagePath - file path to read battery voltage.
      * (POWER_SUPPLY_PROP_VOLTAGE_NOW)
      */
     string batteryVoltagePath;
 
-    /*
+    /**
      * batteryTemperaturePath - file path to read battery temperature in tenths
      * of degree celcius. (POWER_SUPPLY_PROP_TEMP)
      */
     string batteryTemperaturePath;
 
-    /*
+    /**
      * batteryTechnologyPath - file path to read battery technology.
      * (POWER_SUPPLY_PROP_TECHNOLOGY)
      */
     string batteryTechnologyPath;
 
-    /*
+    /**
      * batteryCurrentNowPath - file path to read battery instantaneous current.
      * (POWER_SUPPLY_PROP_CURRENT_NOW)
      */
     string batteryCurrentNowPath;
 
-    /*
+    /**
      * batteryCurrentAvgPath - file path to read battery average current.
      * (POWER_SUPPLY_PROP_CURRENT_AVG)
      */
     string batteryCurrentAvgPath;
 
-    /*
+    /**
      * batteryChargeCounterPath - file path to read battery accumulated charge.
      * (POWER_SUPPLY_PROP_CHARGE_COUNTER)
      */
     string batteryChargeCounterPath;
 
-    /*
+    /**
      * batteryFullChargerPath - file path to read battery charge value when it
      * is considered to be full. (POWER_SUPPLY_PROP_CHARGE_FULL)
      */
     string batteryFullChargePath;
 
-    /*
+    /**
      * batteryCycleCountPath - file path to read battery charge cycle count.
      * (POWER_SUPPLY_PROP_CYCLE_COUNT)
      */
     string batteryCycleCountPath;
 };
 
-/*
+/**
  * The parameter to healthd mainloop update calls
  */
 struct HealthInfo {
-    /* AC charger state - 'true' if online */
+    /** AC charger state - 'true' if online */
     bool chargerAcOnline;
 
-    /* USB charger state - 'true' if online */
+    /** USB charger state - 'true' if online */
     bool chargerUsbOnline;
 
-    /* Wireless charger state - 'true' if online */
+    /** Wireless charger state - 'true' if online */
     bool chargerWirelessOnline;
 
-    /* Maximum charging current supported by charger in uA */
+    /** Maximum charging current supported by charger in uA */
     int32_t maxChargingCurrent;
 
-    /* Maximum charging voltage supported by charger in uV */
+    /** Maximum charging voltage supported by charger in uV */
     int32_t maxChargingVoltage;
 
     BatteryStatus batteryStatus;
 
     BatteryHealth batteryHealth;
 
-    /* 'true' if battery is present */
+    /** 'true' if battery is present */
     bool batteryPresent;
 
-    /* Remaining battery capacity in percent */
+    /** Remaining battery capacity in percent */
     int32_t batteryLevel;
 
-    /* Instantaneous battery voltage in uV */
+    /** Instantaneous battery voltage in uV */
     int32_t batteryVoltage;
 
-    /* Instantaneous battery temperature in tenths of degree celcius */
+    /** Instantaneous battery temperature in tenths of degree celcius */
     int32_t batteryTemperature;
 
-    /* Instantaneous battery current in uA */
+    /** Instantaneous battery current in uA */
     int32_t batteryCurrent;
 
-    /* Battery charge cycle count */
+    /** Battery charge cycle count */
     int32_t batteryCycleCount;
 
-    /* Battery charge value when it is considered to be "full" in uA-h */
+    /** Battery charge value when it is considered to be "full" in uA-h */
     int32_t batteryFullCharge;
 
-    /* Instantaneous battery capacity in uA-h */
+    /** Instantaneous battery capacity in uA-h */
     int32_t batteryChargeCounter;
 
-    /* Battery technology, e.g. "Li-ion, Li-Poly" etc. */
+    /** Battery technology, e.g. "Li-ion, Li-Poly" etc. */
     string batteryTechnology;
 };
diff --git a/keymaster/3.0/types.hal b/keymaster/3.0/types.hal
index 1f4a0cc..6dad23e 100644
--- a/keymaster/3.0/types.hal
+++ b/keymaster/3.0/types.hal
@@ -17,40 +17,40 @@
 package android.hardware.keymaster@3.0;
 
 enum TagType : uint32_t {
-    INVALID = 0 << 28, /* Invalid type, used to designate a tag as uninitialized */
+    INVALID = 0 << 28, /** Invalid type, used to designate a tag as uninitialized */
     ENUM = 1 << 28,
-    ENUM_REP = 2 << 28, /* Repeatable enumeration value. */
+    ENUM_REP = 2 << 28, /** Repeatable enumeration value. */
     UINT = 3 << 28,
-    UINT_REP = 4 << 28, /* Repeatable integer value */
+    UINT_REP = 4 << 28, /** Repeatable integer value */
     ULONG = 5 << 28,
     DATE = 6 << 28,
     BOOL = 7 << 28,
     BIGNUM = 8 << 28,
     BYTES = 9 << 28,
-    ULONG_REP = 10 << 28, /* Repeatable long value */
+    ULONG_REP = 10 << 28, /** Repeatable long value */
 };
 
 enum Tag : uint32_t {
     INVALID = TagType:INVALID | 0,
 
-    /*
+    /**
      * Tags that must be semantically enforced by hardware and software implementations.
      */
 
-    /* Crypto parameters */
-    PURPOSE = TagType:ENUM_REP | 1,    /* KeyPurpose. */
-    ALGORITHM = TagType:ENUM | 2,      /* Algorithm. */
-    KEY_SIZE = TagType:UINT | 3,       /* Key size in bits. */
-    BLOCK_MODE = TagType:ENUM_REP | 4, /* BlockMode. */
-    DIGEST = TagType:ENUM_REP | 5,     /* Digest. */
-    PADDING = TagType:ENUM_REP | 6,    /* PaddingMode. */
-    CALLER_NONCE = TagType:BOOL | 7,   /* Allow caller to specify nonce or IV. */
+    /** Crypto parameters */
+    PURPOSE = TagType:ENUM_REP | 1,    /** KeyPurpose. */
+    ALGORITHM = TagType:ENUM | 2,      /** Algorithm. */
+    KEY_SIZE = TagType:UINT | 3,       /** Key size in bits. */
+    BLOCK_MODE = TagType:ENUM_REP | 4, /** BlockMode. */
+    DIGEST = TagType:ENUM_REP | 5,     /** Digest. */
+    PADDING = TagType:ENUM_REP | 6,    /** PaddingMode. */
+    CALLER_NONCE = TagType:BOOL | 7,   /** Allow caller to specify nonce or IV. */
     MIN_MAC_LENGTH = TagType:UINT | 8, /* Minimum length of MAC or AEAD authentication tag in
                                         * bits. */
-    KDF = TagType:ENUM_REP | 9,        /* KeyDerivationFunction. */
-    EC_CURVE = TagType:ENUM | 10,      /* EcCurve. */
+    KDF = TagType:ENUM_REP | 9,        /** KeyDerivationFunction. */
+    EC_CURVE = TagType:ENUM | 10,      /** EcCurve. */
 
-    /* Algorithm-specific. */
+    /** Algorithm-specific. */
     RSA_PUBLIC_EXPONENT = TagType:ULONG | 200,
     ECIES_SINGLE_HASH_MODE = TagType:BOOL | 201, /* Whether the ephemeral public key is fed into the
                                                   * KDF. */
@@ -58,17 +58,17 @@
                                                   * will contain an application-scoped and
                                                   * time-bounded device-unique ID.*/
 
-    /* Other hardware-enforced. */
-    BLOB_USAGE_REQUIREMENTS = TagType:ENUM | 301, /* KeyBlobUsageRequirements. */
-    BOOTLOADER_ONLY = TagType:BOOL | 302,         /* Usable only by bootloader. */
+    /** Other hardware-enforced. */
+    BLOB_USAGE_REQUIREMENTS = TagType:ENUM | 301, /** KeyBlobUsageRequirements. */
+    BOOTLOADER_ONLY = TagType:BOOL | 302,         /** Usable only by bootloader. */
 
-    /*
+    /**
      * Tags that should be semantically enforced by hardware if possible and will otherwise be
      * enforced by software (keystore).
      */
 
-    /* Key validity period */
-    ACTIVE_DATETIME = TagType:DATE | 400,             /* Start of validity. */
+    /** Key validity period */
+    ACTIVE_DATETIME = TagType:DATE | 400,             /** Start of validity. */
     ORIGINATION_EXPIRE_DATETIME = TagType:DATE | 401, /* Date when new "messages" should no longer
                                                        * be created. */
     USAGE_EXPIRE_DATETIME = TagType:DATE | 402,       /* Date when existing "messages" should no
@@ -78,13 +78,13 @@
     MAX_USES_PER_BOOT = TagType:UINT | 404,           /* Number of times the key can be used per
                                                        * boot. */
 
-    /* User authentication */
-    ALL_USERS = TagType:BOOL | 500,           /* Reserved for future use -- ignore. */
-    USER_ID = TagType:UINT | 501,             /* Reserved for future use -- ignore. */
+    /** User authentication */
+    ALL_USERS = TagType:BOOL | 500,           /** Reserved for future use -- ignore. */
+    USER_ID = TagType:UINT | 501,             /** Reserved for future use -- ignore. */
     USER_SECURE_ID = TagType:ULONG_REP | 502, /* Secure ID of authorized user or authenticator(s).
                                                * Disallowed if ALL_USERS or NO_AUTH_REQUIRED is
                                                * present. */
-    NO_AUTH_REQUIRED = TagType:BOOL | 503,    /* If key is usable without authentication. */
+    NO_AUTH_REQUIRED = TagType:BOOL | 503,    /** If key is usable without authentication. */
     USER_AUTH_TYPE = TagType:ENUM | 504,      /* Bitmask of authenticator types allowed when
                                                * USER_SECURE_ID contains a secure user ID, rather
                                                * than a secure authenticator ID.  Defined in
@@ -99,27 +99,27 @@
                                                * if device is still on-body (requires secure on-body
                                                * sensor. */
 
-    /* Application access control */
+    /** Application access control */
     ALL_APPLICATIONS = TagType:BOOL | 600, /* Specified to indicate key is usable by all
                                             * applications. */
-    APPLICATION_ID = TagType:BYTES | 601,  /* Byte string identifying the authorized application. */
+    APPLICATION_ID = TagType:BYTES | 601,  /** Byte string identifying the authorized application. */
     EXPORTABLE = TagType:BOOL | 602,       /* If true, private/secret key can be exported, but only
                                             * if all access control requirements for use are
                                             * met. (keymaster2) */
 
-    /*
+    /**
      * Semantically unenforceable tags, either because they have no specific meaning or because
      * they're informational only.
      */
-    APPLICATION_DATA = TagType:BYTES | 700,      /* Data provided by authorized application. */
-    CREATION_DATETIME = TagType:DATE | 701,      /* Key creation time */
-    ORIGIN = TagType:ENUM | 702,                 /* keymaster_key_origin_t. */
-    ROLLBACK_RESISTANT = TagType:BOOL | 703,     /* Whether key is rollback-resistant. */
-    ROOT_OF_TRUST = TagType:BYTES | 704,         /* Root of trust ID. */
-    OS_VERSION = TagType:UINT | 705,             /* Version of system (keymaster2) */
-    OS_PATCHLEVEL = TagType:UINT | 706,          /* Patch level of system (keymaster2) */
-    UNIQUE_ID = TagType:BYTES | 707,             /* Used to provide unique ID in attestation */
-    ATTESTATION_CHALLENGE = TagType:BYTES | 708, /* Used to provide challenge in attestation */
+    APPLICATION_DATA = TagType:BYTES | 700,      /** Data provided by authorized application. */
+    CREATION_DATETIME = TagType:DATE | 701,      /** Key creation time */
+    ORIGIN = TagType:ENUM | 702,                 /** keymaster_key_origin_t. */
+    ROLLBACK_RESISTANT = TagType:BOOL | 703,     /** Whether key is rollback-resistant. */
+    ROOT_OF_TRUST = TagType:BYTES | 704,         /** Root of trust ID. */
+    OS_VERSION = TagType:UINT | 705,             /** Version of system (keymaster2) */
+    OS_PATCHLEVEL = TagType:UINT | 706,          /** Patch level of system (keymaster2) */
+    UNIQUE_ID = TagType:BYTES | 707,             /** Used to provide unique ID in attestation */
+    ATTESTATION_CHALLENGE = TagType:BYTES | 708, /** Used to provide challenge in attestation */
     ATTESTATION_APPLICATION_ID = TagType:BYTES | 709, /* Used to identify the set of possible
                                                        * applications of which one has initiated a
                                                        * key attestation */
@@ -140,13 +140,13 @@
     ATTESTATION_ID_MODEL = TagType:BYTES | 717,  /* Used to provide the device's model name to be
                                                     included in attestation */
 
-    /* Tags used only to provide data to or receive data from operations */
-    ASSOCIATED_DATA = TagType:BYTES | 1000, /* Used to provide associated data for AEAD modes. */
-    NONCE = TagType:BYTES | 1001,           /* Nonce or Initialization Vector */
+    /** Tags used only to provide data to or receive data from operations */
+    ASSOCIATED_DATA = TagType:BYTES | 1000, /** Used to provide associated data for AEAD modes. */
+    NONCE = TagType:BYTES | 1001,           /** Nonce or Initialization Vector */
     AUTH_TOKEN = TagType:BYTES | 1002,      /* Authentication token that proves secure user
                                              * authentication has been performed.  Structure defined
                                              * in hw_auth_token_t in hw_auth_token.h. */
-    MAC_LENGTH = TagType:UINT | 1003,       /* MAC or AEAD authentication tag length in bits. */
+    MAC_LENGTH = TagType:UINT | 1003,       /** MAC or AEAD authentication tag length in bits. */
 
     RESET_SINCE_ID_ROTATION = TagType:BOOL | 1004, /* Whether the device has beeen factory reset
                                                     * since the last unique ID rotation.  Used for
@@ -154,15 +154,15 @@
 };
 
 enum Algorithm : uint32_t {
-    /* Asymmetric algorithms. */
+    /** Asymmetric algorithms. */
     RSA = 1,
     // DSA = 2, -- Removed, do not re-use value 2.
     EC = 3,
 
-    /* Block ciphers algorithms */
+    /** Block ciphers algorithms */
     AES = 32,
 
-    /* MAC algorithms */
+    /** MAC algorithms */
     HMAC = 128,
 };
 
@@ -170,13 +170,15 @@
  * Symmetric block cipher modes provided by keymaster implementations.
  */
 enum BlockMode : uint32_t {
-    /* Unauthenticated modes, usable only for encryption/decryption and not generally recommended
+    /**
+     * Unauthenticated modes, usable only for encryption/decryption and not generally recommended
      * except for compatibility with existing other protocols. */
     ECB = 1,
     CBC = 2,
     CTR = 3,
 
-    /* Authenticated modes, usable for encryption/decryption and signing/verification.  Recommended
+    /**
+     * Authenticated modes, usable for encryption/decryption and signing/verification.  Recommended
      * over unauthenticated modes for all purposes. */
     GCM = 32,
 };
@@ -188,7 +190,7 @@
  * cryptographically-appropriate pairs.
  */
 enum PaddingMode : uint32_t {
-    NONE = 1, /* deprecated */
+    NONE = 1, /** deprecated */
     RSA_OAEP = 2,
     RSA_PSS = 3,
     RSA_PKCS1_1_5_ENCRYPT = 4,
@@ -227,9 +229,9 @@
  * guaranteed never to have existed outide the secure hardware.
  */
 enum KeyOrigin : uint32_t {
-    GENERATED = 0, /* Generated in keymaster.  Should not exist outside the TEE. */
-    DERIVED = 1,   /* Derived inside keymaster.  Likely exists off-device. */
-    IMPORTED = 2,  /* Imported into keymaster.  Existed as cleartext in Android. */
+    GENERATED = 0, /** Generated in keymaster.  Should not exist outside the TEE. */
+    DERIVED = 1,   /** Derived inside keymaster.  Likely exists off-device. */
+    IMPORTED = 2,  /** Imported into keymaster.  Existed as cleartext in Android. */
     UNKNOWN = 3,   /* Keymaster did not record origin.  This value can only be seen on keys in a
                     * keymaster0 implementation.  The keymaster0 adapter uses this value to document
                     * the fact that it is unkown whether the key was generated inside or imported
@@ -252,12 +254,12 @@
  * Possible purposes of a key (or pair).
  */
 enum KeyPurpose : uint32_t {
-    ENCRYPT = 0,    /* Usable with RSA, EC and AES keys. */
-    DECRYPT = 1,    /* Usable with RSA, EC and AES keys. */
-    SIGN = 2,       /* Usable with RSA, EC and HMAC keys. */
-    VERIFY = 3,     /* Usable with RSA, EC and HMAC keys. */
-    DERIVE_KEY = 4, /* Usable with EC keys. */
-    WRAP_KEY = 5,   /* Usable with wrapping keys. */
+    ENCRYPT = 0,    /** Usable with RSA, EC and AES keys. */
+    DECRYPT = 1,    /** Usable with RSA, EC and AES keys. */
+    SIGN = 2,       /** Usable with RSA, EC and HMAC keys. */
+    VERIFY = 3,     /** Usable with RSA, EC and HMAC keys. */
+    DERIVE_KEY = 4, /** Usable with EC keys. */
+    WRAP_KEY = 5,   /** Usable with wrapping keys. */
 };
 
 /**
@@ -283,8 +285,8 @@
     INVALID_AUTHORIZATION_TIMEOUT = -16,
     UNSUPPORTED_KEY_FORMAT = -17,
     INCOMPATIBLE_KEY_FORMAT = -18,
-    UNSUPPORTED_KEY_ENCRYPTION_ALGORITHM = -19,   /* For PKCS8 & PKCS12 */
-    UNSUPPORTED_KEY_VERIFICATION_ALGORITHM = -20, /* For PKCS8 & PKCS12 */
+    UNSUPPORTED_KEY_ENCRYPTION_ALGORITHM = -19,   /** For PKCS8 & PKCS12 */
+    UNSUPPORTED_KEY_VERIFICATION_ALGORITHM = -20, /** For PKCS8 & PKCS12 */
     INVALID_INPUT_LENGTH = -21,
     KEY_EXPORT_OPTIONS_INVALID = -22,
     DELEGATION_NOT_ALLOWED = -23,
@@ -340,17 +342,17 @@
  * Key derivation functions, mostly used in ECIES.
  */
 enum KeyDerivationFunction : uint32_t {
-    /* Do not apply a key derivation function; use the raw agreed key */
+    /** Do not apply a key derivation function; use the raw agreed key */
     NONE = 0,
-    /* HKDF defined in RFC 5869 with SHA256 */
+    /** HKDF defined in RFC 5869 with SHA256 */
     RFC5869_SHA256 = 1,
-    /* KDF1 defined in ISO 18033-2 with SHA1 */
+    /** KDF1 defined in ISO 18033-2 with SHA1 */
     ISO18033_2_KDF1_SHA1 = 2,
-    /* KDF1 defined in ISO 18033-2 with SHA256 */
+    /** KDF1 defined in ISO 18033-2 with SHA256 */
     ISO18033_2_KDF1_SHA256 = 3,
-    /* KDF2 defined in ISO 18033-2 with SHA1 */
+    /** KDF2 defined in ISO 18033-2 with SHA1 */
     ISO18033_2_KDF2_SHA1 = 4,
-    /* KDF2 defined in ISO 18033-2 with SHA256 */
+    /** KDF2 defined in ISO 18033-2 with SHA256 */
     ISO18033_2_KDF2_SHA256 = 5,
 };
 
@@ -368,11 +370,12 @@
 };
 
 struct KeyParameter {
-    /* Discriminates the uinon/blob field used.  The blob cannot be coincided with the union, but
+    /**
+     * Discriminates the uinon/blob field used.  The blob cannot be coincided with the union, but
      * only one of "f" and "blob" is ever used at a time. */
     Tag tag;
     union IntegerParams {
-        /* Enum types */
+        /** Enum types */
         Algorithm algorithm;
         BlockMode blockMode;
         PaddingMode paddingMode;
@@ -384,7 +387,7 @@
         KeyDerivationFunction keyDerivationFunction;
         HardwareAuthenticatorType hardwareAuthenticatorType;
 
-        /* Other types */
+        /** Other types */
         bool boolValue;  // Always true, if a boolean tag is present.
         uint32_t integer;
         uint64_t longInteger;
@@ -424,8 +427,8 @@
  * Formats for key import and export.
  */
 enum KeyFormat : uint32_t {
-    X509 = 0,  /* for public key export */
-    PKCS8 = 1, /* for asymmetric key pair import */
+    X509 = 0,  /** for public key export */
+    PKCS8 = 1, /** for asymmetric key pair import */
     RAW = 3,   /* for symmetric key import and export*/
 };
 
diff --git a/light/2.0/types.hal b/light/2.0/types.hal
index cc2ec32..27b67e0 100644
--- a/light/2.0/types.hal
+++ b/light/2.0/types.hal
@@ -24,17 +24,17 @@
 };
 
 enum Flash : int32_t {
-    /*
+    /**
      * Keep the light steady on or off.
      */
     NONE,
 
-    /*
+    /**
      * Flash the light at specified rate.
      */
     TIMED,
 
-    /*
+    /**
      * Flash the light using hardware assist.
      */
     HARDWARE,
@@ -77,7 +77,7 @@
     LOW_PERSISTENCE,
 };
 
-/*
+/**
  * These light IDs correspond to logical lights, not physical.
  * So for example, if your INDICATOR light is in line with your
  * BUTTONS, it might make sense to also light the INDICATOR
diff --git a/memtrack/1.0/IMemtrack.hal b/memtrack/1.0/IMemtrack.hal
index ae9d960..a329032 100644
--- a/memtrack/1.0/IMemtrack.hal
+++ b/memtrack/1.0/IMemtrack.hal
@@ -16,7 +16,7 @@
 
 package android.hardware.memtrack@1.0;
 
-/*
+/**
  * The Memory Tracker HAL is designed to return information about
  * device-specific memory usage.
  * The primary goal is to be able to track memory that is not
@@ -30,7 +30,7 @@
  * setup actions and is called once before any calls to getMemory().
  */
 interface IMemtrack {
-    /*
+    /**
      * getMemory() populates MemtrackRecord vector with the sizes of memory
      * plus associated flags for that memory.
      *
diff --git a/memtrack/1.0/types.hal b/memtrack/1.0/types.hal
index 3d702b3..189312a 100644
--- a/memtrack/1.0/types.hal
+++ b/memtrack/1.0/types.hal
@@ -16,7 +16,7 @@
 
 package android.hardware.memtrack@1.0;
 
-/*
+/**
  * SMAPS_ACCOUNTED/SMAPS_UNACCOUNTED
  * Flags to differentiate memory that can already be accounted for in
  * /proc/<pid>/smaps,
@@ -56,7 +56,7 @@
     SECURE = 1 << 9,
 };
 
-/* Tags which define the usage of the memory buffers. */
+/** Tags which define the usage of the memory buffers. */
 enum MemtrackType : uint32_t {
     OTHER = 0,
     GL = 1,
@@ -79,7 +79,7 @@
  */
 struct MemtrackRecord {
     uint64_t sizeInBytes;
-    /*
+    /**
      * This is the bitfield for the MemtrackFlag indicating all the flags that
      * are valid for this record.
      */
diff --git a/power/1.0/IPower.hal b/power/1.0/IPower.hal
index 6cba42a..250f645 100644
--- a/power/1.0/IPower.hal
+++ b/power/1.0/IPower.hal
@@ -15,12 +15,12 @@
  */
 package android.hardware.power@1.0;
 
-/*
+/**
  * Constructor for the interface performs power management setup actions at
  * runtime startup, such as to set default cpufreq parameters.
  */
 interface IPower {
-    /*
+    /**
      * setInteractive() performs power management actions upon the
      * system entering interactive state (that is, the system is awake
      * and ready for interaction, often with UI devices such as
@@ -49,7 +49,7 @@
      */
     setInteractive(bool interactive);
 
-    /*
+    /**
      * powerHint() is called to pass hints on power requirements which
      * may result in adjustment of power/performance parameters of the
      * cpufreq governor and other controls.
@@ -62,7 +62,7 @@
      */
     powerHint(PowerHint hint, int32_t data);
 
-    /*
+    /**
      * setFeature() is called to turn on or off a particular feature
      * depending on the state parameter.
      *
@@ -71,7 +71,7 @@
      */
     setFeature(Feature feature, bool activate);
 
-    /*
+    /**
      * Platform-level sleep state stats:
      * Report cumulative info on the statistics on platform-level sleep states
      * since boot.
diff --git a/power/1.0/types.hal b/power/1.0/types.hal
index debdc35..f839283 100644
--- a/power/1.0/types.hal
+++ b/power/1.0/types.hal
@@ -15,9 +15,9 @@
  */
 package android.hardware.power@1.0;
 
-/* Power hint identifiers passed to powerHint() */
+/** Power hint identifiers passed to powerHint() */
 enum PowerHint : uint32_t {
-   /*
+   /**
     * Foreground app has started or stopped requesting a VSYNC pulse
     * from SurfaceFlinger. If the app has started requesting VSYNC
     * then CPU and GPU load is expected soon, and it may be appropriate
@@ -28,7 +28,7 @@
     VSYNC = 0x00000001,
 
 
-   /*
+   /**
     * User is interacting with the device, for example, touchscreen
     * events are incoming. CPU and GPU load may be expected soon,
     * and it may be appropriate to raise speeds of CPU, memory bus,
@@ -38,13 +38,14 @@
     INTERACTION = 0x00000002,
 
 
-    /* DO NOT USE VIDEO_ENCODE/_DECODE!  They will be removed in
+    /**
+     * DO NOT USE VIDEO_ENCODE/_DECODE!  They will be removed in
      * KLP.
      */
     VIDEO_ENCODE = 0x00000003,
     VIDEO_DECODE = 0x00000004,
 
-   /*
+   /**
     * Low power mode is activated or deactivated. Low power mode
     * is intended to save battery at the cost of performance. The data
     * parameter is non-zero when low power mode is activated, and zero
@@ -52,7 +53,7 @@
     */
     LOW_POWER = 0x00000005,
 
-   /*
+   /**
     * Sustained Performance mode is actived or deactivated. Sustained
     * performance mode is intended to provide a consistent level of
     * performance for a prolonged amount of time. The data parameter is
@@ -61,7 +62,7 @@
     */
     SUSTAINED_PERFORMANCE = 0x00000006,
 
-   /*
+   /**
     * VR Mode is activated or deactivated. VR mode is intended to
     * provide minimum guarantee for performance for the amount of time the
     * device can sustain it. The data parameter is non-zero when the mode
@@ -69,7 +70,7 @@
     */
     VR_MODE = 0x00000007,
 
-   /*
+   /**
     * This hint indicates that an application has been launched. Can be used
     * for device specific optimizations during application launch. The data
     * parameter is non-zero when the application starts to launch and zero when
@@ -79,7 +80,7 @@
 };
 
 enum Feature : uint32_t {
-    /*
+    /**
      * Enabling/Disabling this feature will allow/disallow the system
      * to wake up by tapping the screen twice.
      */
@@ -90,7 +91,7 @@
     SUCCESS = 0,
     FILESYSTEM_ERROR = 1
 };
-/*
+/**
  * Platform-level sleep state stats:
  * PowerStateVoter struct is useful for describing the individual voters
  * when a Platform-level sleep state is chosen by aggregation of votes from
@@ -100,24 +101,24 @@
  * entering the lowest Platform-level sleep state.
  */
 struct PowerStateVoter {
-    /*
+    /**
      * Name of the voter.
      */
      string name;
 
-    /*
+    /**
      * Total time in msec the voter voted for the platform sleep state since
      * boot.
      */
      uint64_t totalTimeInMsecVotedForSinceBoot;
 
-    /*
+    /**
      * Number of times the voter voted for the platform sleep state since boot.
      */
      uint64_t totalNumberOfTimesVotedSinceBoot;
 };
 
-/*
+/**
  * Platform-level sleep state stats:
  * PowerStatePlatformSleepState represents the Platform-level sleep state
  * the device is capable of getting into.
@@ -125,27 +126,27 @@
  * SoCs usually have more than one Platform-level sleep state.
  */
 struct PowerStatePlatformSleepState {
-    /*
+    /**
      * Platform-level Sleep state name.
      */
     string name;
 
-    /*
+    /**
      * Time spent in msec at this platform-level sleep state since boot.
      */
     uint64_t residencyInMsecSinceBoot;
 
-    /*
+    /**
      * Total number of times system entered this state.
      */
     uint64_t totalTransitions;
 
-    /*
+    /**
      * This platform-level sleep state can only be reached during system suspend
      */
     bool supportedOnlyInSuspend;
 
-    /*
+    /**
      * voters is useful if the Platform-level sleep state
      * is chosen by aggregation votes from multiple clients/system conditions.
      * All the voters have to say yes or all the system conditions need to be
diff --git a/sensors/1.0/ISensors.hal b/sensors/1.0/ISensors.hal
index 5c8301a..8d41de2 100644
--- a/sensors/1.0/ISensors.hal
+++ b/sensors/1.0/ISensors.hal
@@ -37,7 +37,8 @@
      */
     setOperationMode(OperationMode mode) generates (Result result);
 
-    /* Activate/de-activate one sensor.
+    /**
+     * Activate/de-activate one sensor.
      *
      * After sensor de-activation, existing sensor events that have not
      * been picked up by poll() must be abandoned immediately so that
@@ -76,7 +77,7 @@
                 vec<Event> data,
                 vec<SensorInfo> dynamicSensorsAdded);
 
-    /*
+    /**
      * Sets a sensor’s parameters, including sampling frequency and maximum
      * report latency. This function can be called while the sensor is
      * activated, in which case it must not cause any sensor measurements to
@@ -96,7 +97,7 @@
           int64_t samplingPeriodNs,
           int64_t maxReportLatencyNs) generates (Result result);
 
-    /*
+    /**
      * Trigger a flush of internal FIFO.
      *
      * Flush adds a FLUSH_COMPLETE metadata event to the end of the "batch mode"
@@ -113,7 +114,7 @@
      */
     flush(int32_t sensorHandle) generates (Result result);
 
-    /*
+    /**
      * Inject a single sensor event or push operation environment parameters to
      * device.
      *
@@ -137,7 +138,7 @@
      */
     injectSensorData(Event event) generates (Result result);
 
-    /*
+    /**
      * Register direct report channel.
      *
      * Register a direct channel with supplied shared memory information. Upon
@@ -156,7 +157,7 @@
     registerDirectChannel(SharedMemInfo mem)
             generates (Result result, int32_t channelHandle);
 
-    /*
+    /**
      * Unregister direct report channel.
      *
      * Unregister a direct channel previously registered using
@@ -169,7 +170,7 @@
      */
     unregisterDirectChannel(int32_t channelHandle) generates (Result result);
 
-    /*
+    /**
      * Configure direct sensor event report in direct channel.
      *
      * This function start, modify rate or stop direct report of a sensor in a
diff --git a/sensors/1.0/types.hal b/sensors/1.0/types.hal
index efb18c6..3926e2f 100644
--- a/sensors/1.0/types.hal
+++ b/sensors/1.0/types.hal
@@ -22,7 +22,7 @@
  * http://source.android.com/devices/sensors/index.html
  */
 
-/* Type enumerating various result codes returned from ISensors methods */
+/** Type enumerating various result codes returned from ISensors methods */
 enum Result : int32_t {
     OK,
     PERMISSION_DENIED                   = -1,
@@ -31,7 +31,7 @@
     INVALID_OPERATION                   = -38,
 };
 
-/*
+/**
  * Sensor HAL modes used in setOperationMode method
  */
 @export(name="", value_prefix="SENSOR_HAL_", value_suffix="_MODE")
@@ -40,7 +40,7 @@
     DATA_INJECTION                  = 1,
 };
 
-/*
+/**
  * Sensor type
  *
  * Each sensor has a type which defines what this sensor measures and how
@@ -88,7 +88,7 @@
  *  - This way, all applications can now use this sensor.
  */
 
-/*
+/**
  * Wake up sensors.
  * Each sensor may have either or both a wake-up and a non-wake variant.
  * When registered in batch mode, wake-up sensors will wake up the AP when
@@ -116,14 +116,15 @@
 
 @export(name="", value_prefix="SENSOR_TYPE_")
 enum SensorType : int32_t {
-    /* META_DATA is a special event type used to populate the MetaData
+    /**
+     * META_DATA is a special event type used to populate the MetaData
      * structure. It doesn't correspond to a physical sensor. Events of this
      * type exist only inside the HAL, their primary purpose is to signal the
      * completion of a flush request.
      */
     META_DATA                       = 0,
 
-    /*
+    /**
      * ACCELEROMETER
      * reporting-mode: continuous
      *
@@ -135,7 +136,7 @@
      */
     ACCELEROMETER                   = 1,
 
-    /*
+    /**
      * MAGNETIC_FIELD
      * reporting-mode: continuous
      *
@@ -147,7 +148,7 @@
      */
     MAGNETIC_FIELD                  = 2,
 
-    /*
+    /**
      * ORIENTATION
      * reporting-mode: continuous
      *
@@ -161,7 +162,7 @@
      */
     ORIENTATION                     = 3,
 
-    /*
+    /**
      * GYROSCOPE
      * reporting-mode: continuous
      *
@@ -173,7 +174,7 @@
      */
     GYROSCOPE                       = 4,
 
-    /*
+    /**
      * LIGHT
      * reporting-mode: on-change
      *
@@ -183,7 +184,7 @@
      */
     LIGHT                           = 5,
 
-    /*
+    /**
      * PRESSURE
      * reporting-mode: continuous
      *
@@ -194,10 +195,10 @@
      */
     PRESSURE                        = 6,
 
-    /* TEMPERATURE is deprecated in the HAL */
+    /** TEMPERATURE is deprecated in the HAL */
     TEMPERATURE                     = 7,
 
-    /*
+    /**
      * PROXIMITY
      * reporting-mode: on-change
      *
@@ -210,7 +211,7 @@
      */
     PROXIMITY                       = 8,
 
-    /*
+    /**
      * GRAVITY
      * reporting-mode: continuous
      *
@@ -222,7 +223,7 @@
      */
     GRAVITY                         = 9,
 
-    /*
+    /**
      * LINEAR_ACCELERATION
      * reporting-mode: continuous
      *
@@ -234,7 +235,7 @@
      */
     LINEAR_ACCELERATION             = 10,
 
-    /*
+    /**
      * ROTATION_VECTOR
      * reporting-mode: continuous
      *
@@ -246,7 +247,7 @@
      */
     ROTATION_VECTOR                 = 11,
 
-    /*
+    /**
      * RELATIVE_HUMIDITY
      * reporting-mode: on-change
      *
@@ -257,7 +258,7 @@
      */
     RELATIVE_HUMIDITY               = 12,
 
-    /*
+    /**
      * AMBIENT_TEMPERATURE
      * reporting-mode: on-change
      *
@@ -267,7 +268,7 @@
      */
     AMBIENT_TEMPERATURE             = 13,
 
-    /*
+    /**
      * MAGNETIC_FIELD_UNCALIBRATED
      * reporting-mode: continuous
      *
@@ -279,7 +280,7 @@
      */
     MAGNETIC_FIELD_UNCALIBRATED     = 14,
 
-    /*
+    /**
      * GAME_ROTATION_VECTOR
      * reporting-mode: continuous
      *
@@ -291,7 +292,7 @@
      */
     GAME_ROTATION_VECTOR            = 15,
 
-    /*
+    /**
      * GYROSCOPE_UNCALIBRATED
      * reporting-mode: continuous
      *
@@ -303,7 +304,7 @@
      */
     GYROSCOPE_UNCALIBRATED          = 16,
 
-    /*
+    /**
      * SIGNIFICANT_MOTION
      * reporting-mode: one-shot
      *
@@ -316,7 +317,7 @@
      */
     SIGNIFICANT_MOTION              = 17,
 
-    /*
+    /**
      * STEP_DETECTOR
      * reporting-mode: special
      *
@@ -328,7 +329,7 @@
      */
     STEP_DETECTOR                   = 18,
 
-    /*
+    /**
      * STEP_COUNTER
      * reporting-mode: on-change
      *
@@ -341,7 +342,7 @@
      */
     STEP_COUNTER                    = 19,
 
-    /*
+    /**
      * GEOMAGNETIC_ROTATION_VECTOR
      * reporting-mode: continuous
      *
@@ -353,7 +354,7 @@
      */
     GEOMAGNETIC_ROTATION_VECTOR     = 20,
 
-    /*
+    /**
      * HEART_RATE
      * reporting-mode: on-change
      *
@@ -377,7 +378,7 @@
      */
     HEART_RATE                      = 21,
 
-    /*
+    /**
      * WAKE_UP_TILT_DETECTOR
      * reporting-mode: special (setDelay has no impact)
      *
@@ -416,7 +417,7 @@
      */
     TILT_DETECTOR                   = 22,
 
-    /*
+    /**
      * WAKE_GESTURE
      * reporting-mode: one-shot
      *
@@ -437,7 +438,7 @@
      */
     WAKE_GESTURE                    = 23,
 
-    /*
+    /**
      * GLANCE_GESTURE
      * reporting-mode: one-shot
      *
@@ -474,7 +475,7 @@
      */
     PICK_UP_GESTURE                 = 25,
 
-    /*
+    /**
      * WRIST_TILT_GESTURE
      * trigger-mode: special
      * wake-up sensor: yes
@@ -489,7 +490,7 @@
      */
     WRIST_TILT_GESTURE              = 26,
 
-    /*
+    /**
      * DEVICE_ORIENTATION
      * reporting-mode: on-change
      *
@@ -523,7 +524,7 @@
      */
     DEVICE_ORIENTATION              = 27,
 
-    /*
+    /**
      * POSE_6DOF
      * trigger-mode: continuous
      *
@@ -541,7 +542,7 @@
      */
     POSE_6DOF                       = 28,
 
-    /*
+    /**
      * STATIONARY_DETECT
      * trigger mode: one shot
      *
@@ -555,7 +556,7 @@
      */
     STATIONARY_DETECT               = 29,
 
-    /*
+    /**
      * MOTION_DETECT
      * trigger mode: one shot
      *
@@ -573,7 +574,7 @@
      */
     MOTION_DETECT                   = 30,
 
-    /*
+    /**
      * HEART_BEAT
      * trigger mode: continuous
      *
@@ -680,7 +681,7 @@
      */
     ADDITIONAL_INFO                 = 33,
 
-    /*
+    /**
      * LOW_LATENCY_OFFBODY_DETECT
      * trigger-mode: on-change
      * wake-up sensor: yes
@@ -703,7 +704,7 @@
      */
     LOW_LATENCY_OFFBODY_DETECT      = 34,
 
-    /*
+    /**
      * ACCELEROMETER_UNCALIBRATED
      * reporting-mode: continuous
      *
@@ -715,7 +716,7 @@
      */
     ACCELEROMETER_UNCALIBRATED      = 35,
 
-    /*
+    /**
      * Base for device manufacturers private sensor types.
      * These sensor types can't be exposed in the SDK.
      */
@@ -724,7 +725,7 @@
 
 @export(name="", value_prefix="SENSOR_FLAG_")
 enum SensorFlagBits : uint32_t {
-    /*
+    /**
      * Whether this sensor wakes up the AP from suspend mode when data is
      * available.  Whenever sensor events are delivered from a wake_up sensor,
      * the driver needs to hold a wake_lock till the events are read by the
@@ -735,7 +736,7 @@
      */
     WAKE_UP                     = 1,
 
-    /*
+    /**
      * Reporting modes for various sensors. Each sensor will have exactly one of
      * these modes set.
      * The least significant 2nd, 3rd and 4th bits are used to represent four
@@ -746,7 +747,7 @@
     ONE_SHOT_MODE               = 4,
     SPECIAL_REPORTING_MODE      = 6,
 
-    /*
+    /**
      * Set this flag if the sensor supports data_injection mode and allows data
      * to be injected from the SensorService. When in data_injection ONLY
      * sensors with this flag set are injected sensor data and only sensors with
@@ -756,42 +757,42 @@
      */
     DATA_INJECTION              = 0x10,
 
-    /*
+    /**
      * Set this flag if the sensor is a dynamically connected sensor. See
      * DynamicSensorInfo and DYNAMIC_SENSOR_META for details.
      */
     DYNAMIC_SENSOR              = 0x20,
 
-    /*
+    /**
      * Set this flag if sensor additional information is supported.
      * See ADDITIONAL_INFO and AdditionalInfo for details.
      */
     ADDITIONAL_INFO             = 0x40,
 
-    /*
+    /**
      * Set this flag if sensor suppor direct channel backed by ashmem.
      * See SharedMemType and registerDirectChannel for more details.
      */
     DIRECT_CHANNEL_ASHMEM       = 0x400,
 
-    /*
+    /**
      * Set this flag if sensor suppor direct channel backed by gralloc HAL memory.
      * See SharedMemType and registerDirectChannel for more details.
      */
     DIRECT_CHANNEL_GRALLOC      = 0x800,
 
-    /*
+    /**
      * Flags mask for reporting mode of sensor.
      */
     MASK_REPORTING_MODE         = 0xE,
 
-    /*
+    /**
      * Flags mask for direct report maximum rate level support.
      * See RateLevel.
      */
     MASK_DIRECT_REPORT          = 0x380,
 
-    /*
+    /**
      * Flags mask for all direct channel support bits.
      * See SharedMemType.
      */
@@ -809,30 +810,34 @@
 };
 
 struct SensorInfo {
-    /* handle that identifies this sensors. This handle is used to reference
+    /**
+     * handle that identifies this sensors. This handle is used to reference
      * this sensor throughout the HAL API.
      */
     int32_t sensorHandle;
 
-    /* Name of this sensor.
+    /**
+     * Name of this sensor.
      * All sensors of the same "type" must have a different "name".
      */
     string name;
 
-    /* vendor of the hardware part */
+    /** vendor of the hardware part */
     string vendor;
 
-    /* version of the hardware part + driver. The value of this field
+    /**
+     * version of the hardware part + driver. The value of this field
      * must increase when the driver is updated in a way that changes the
      * output of this sensor. This is important for fused sensors when the
      * fusion algorithm is updated.
      */
     int32_t version;
 
-    /* this sensor's type. */
+    /** this sensor's type. */
     SensorType type;
 
-    /* type of this sensor as a string.
+    /**
+     * type of this sensor as a string.
      *
      * When defining an OEM specific sensor or sensor manufacturer specific
      * sensor, use your reserve domain name as a prefix.
@@ -843,16 +848,17 @@
      */
     string typeAsString;
 
-    /* maximum range of this sensor's value in SI units */
+    /** maximum range of this sensor's value in SI units */
     float maxRange;
 
-    /* smallest difference between two values reported by this sensor */
+    /** smallest difference between two values reported by this sensor */
     float resolution;
 
-    /* rough estimate of this sensor's power consumption in mA */
+    /** rough estimate of this sensor's power consumption in mA */
     float power;
 
-    /* this value depends on the reporting mode:
+    /**
+     * this value depends on the reporting mode:
      *
      *   continuous: minimum sample period allowed in microseconds
      *   on-change : 0
@@ -861,20 +867,23 @@
      */
     int32_t minDelay;
 
-    /* number of events reserved for this sensor in the batch mode FIFO.
+    /**
+     * number of events reserved for this sensor in the batch mode FIFO.
      * If there is a dedicated FIFO for this sensor, then this is the
      * size of this FIFO. If the FIFO is shared with other sensors,
      * this is the size reserved for that sensor and it can be zero.
      */
     uint32_t fifoReservedEventCount;
 
-    /* maximum number of events of this sensor that could be batched.
+    /**
+     * maximum number of events of this sensor that could be batched.
      * This is especially relevant when the FIFO is shared between
      * several sensors; this value is then set to the size of that FIFO.
      */
     uint32_t fifoMaxEventCount;
 
-    /* permission required to see this sensor, register to it and receive data.
+    /**
+     * permission required to see this sensor, register to it and receive data.
      * Set to "" if no permission is required. Some sensor types like the
      * heart rate monitor have a mandatory require_permission.
      * For sensors that always require a specific permission, like the heart
@@ -883,7 +892,8 @@
      */
     string requiredPermission;
 
-    /* This value is defined only for continuous mode and on-change sensors.
+    /**
+     * This value is defined only for continuous mode and on-change sensors.
      * It is the delay between two sensor events corresponding to the lowest
      * frequency that this sensor supports. When lower frequencies are requested
      * through batch()/setDelay() the events will be generated at this frequency
@@ -901,7 +911,7 @@
      */
     int32_t maxDelay;
 
-    /* Bitmask of SensorFlagBits */
+    /** Bitmask of SensorFlagBits */
     bitfield<SensorFlagBits> flags;
 };
 
@@ -938,13 +948,14 @@
 };
 
 struct HeartRate {
-    /* Heart rate in beats per minute.
+    /**
+     * Heart rate in beats per minute.
      * Set to 0 when status is SensorStatus::UNRELIABLE or
      * SensorStatus::NO_CONTACT
      */
     float bpm;
 
-    /* Status of the heart rate sensor for this reading. */
+    /** Status of the heart rate sensor for this reading. */
     SensorStatus status;
 };
 
@@ -961,7 +972,8 @@
     bool connected;
     int32_t sensorHandle;
 
-    /* UUID of a dynamic sensor (using RFC 4122 byte order)
+    /**
+     * UUID of a dynamic sensor (using RFC 4122 byte order)
      * For UUID 12345678-90AB-CDEF-1122-334455667788 the uuid field is
      * initialized as:
      *   {0x12, 0x34, 0x56, 0x78, 0x90, 0xAB, 0xCD, 0xEF, 0x11, ...}
@@ -971,53 +983,60 @@
 
 @export(name="additional_info_type_t")
 enum AdditionalInfoType : uint32_t {
-    /* Marks the beginning of additional information frames */
+    /** Marks the beginning of additional information frames */
     AINFO_BEGIN                       = 0,
 
-    /* Marks the end of additional information frames */
+    /** Marks the end of additional information frames */
     AINFO_END                         = 1,
 
-    /* Estimation of the delay that is not tracked by sensor timestamps. This
+    /**
+     * Estimation of the delay that is not tracked by sensor timestamps. This
      * includes delay introduced by sensor front-end filtering, data transport,
      * etc.
      * float[2]: delay in seconds, standard deviation of estimated value
      */
     AINFO_UNTRACKED_DELAY             = 0x10000,
 
-    /* float: Celsius temperature */
+    /** float: Celsius temperature */
     AINFO_INTERNAL_TEMPERATURE,
 
-    /* First three rows of a homogeneous matrix, which represents calibration to
+    /**
+     * First three rows of a homogeneous matrix, which represents calibration to
      * a three-element vector raw sensor reading.
      * float[12]: 3x4 matrix in row major order
      */
     AINFO_VEC3_CALIBRATION,
 
-    /* Location and orientation of sensor element in the device frame: origin is
+    /**
+     * Location and orientation of sensor element in the device frame: origin is
      * the geometric center of the mobile device screen surface; the axis
      * definition corresponds to Android sensor definitions.
      * float[12]: 3x4 matrix in row major order
      */
     AINFO_SENSOR_PLACEMENT,
 
-    /* float[2]: raw sample period in seconds,
+    /**
+     * float[2]: raw sample period in seconds,
      *           standard deviation of sampling period
      */
     AINFO_SAMPLING,
 
     // Sampling channel modeling information section
 
-    /* int32_t: noise type
+    /**
+     * int32_t: noise type
      * float[n]: parameters
      */
     AINFO_CHANNEL_NOISE               = 0x20000,
 
-    /* float[3]: sample period, standard deviation of sample period,
+    /**
+     * float[3]: sample period, standard deviation of sample period,
      * quantization unit
      */
     AINFO_CHANNEL_SAMPLER,
 
-    /* Represents a filter:
+    /**
+     * Represents a filter:
      *   \sum_j a_j y[n-j] == \sum_i b_i x[n-i]
      *
      * int32_t[3]: number of feedforward coeffients M,
@@ -1031,48 +1050,56 @@
      */
     AINFO_CHANNEL_FILTER,
 
-    /* int32_t[2]: size in (row, column) ... 1st frame
+    /**
+     * int32_t[2]: size in (row, column) ... 1st frame
      * float[n]: matrix element values in row major order.
      */
     AINFO_CHANNEL_LINEAR_TRANSFORM,
 
-    /* int32_t[2]: extrapolate method, interpolate method
+    /**
+     * int32_t[2]: extrapolate method, interpolate method
      * float[n]: mapping key points in pairs, (in, out)...
      *           (may be used to model saturation).
      */
     AINFO_CHANNEL_NONLINEAR_MAP,
 
-    /* int32_t: resample method (0-th order, 1st order...)
+    /**
+     * int32_t: resample method (0-th order, 1st order...)
      * float[1]: resample ratio (upsampling if < 1.0, downsampling if > 1.0).
      */
     AINFO_CHANNEL_RESAMPLER,
 
-    /* Operation environment parameters section
+    /**
+     * Operation environment parameters section
      * Types in the following section is sent down (instead of reported from)
      * device as additional information to aid sensor operation. Data is sent
      * via injectSensorData() function to sensor handle -1 denoting all sensors
      * in device.
      */
 
-    /* Local geomagnetic field information based on device geo location. This
+    /**
+     * Local geomagnetic field information based on device geo location. This
      * type is primarily for for magnetic field calibration and rotation vector
      * sensor fusion.
      * float[3]: strength (uT), declination and inclination angle (rad).
      */
     AINFO_LOCAL_GEOMAGNETIC_FIELD     = 0x30000,
 
-    /* Local gravitational acceleration strength at device geo location.
+    /**
+     * Local gravitational acceleration strength at device geo location.
      * float: gravitational acceleration norm in m/s^2.
      */
     AINFO_LOCAL_GRAVITY,
 
-    /* Device dock state.
+    /**
+     * Device dock state.
      * int32_t: dock state following Android API Intent.EXTRA_DOCK_STATE
      * definition, undefined value is ignored.
      */
     AINFO_DOCK_STATE,
 
-    /* High performance mode hint. Device is able to use up more power and take
+    /**
+     * High performance mode hint. Device is able to use up more power and take
      * more reources to improve throughput and latency in high performance mode.
      * One possible use case is virtual reality, when sensor latency need to be
      * carefully controlled.
@@ -1081,7 +1108,8 @@
      */
     AINFO_HIGH_PERFORMANCE_MODE,
 
-    /* Magnetic field calibration hint. Device is notified when manually
+    /**
+     * Magnetic field calibration hint. Device is notified when manually
      * triggered magnetic field calibration procedure is started or stopped. The
      * calibration procedure is assumed timed out after 1 minute from start,
      * even if an explicit stop is not received.
@@ -1090,18 +1118,18 @@
      */
     AINFO_MAGNETIC_FIELD_CALIBRATION,
 
-    /* Custom information */
+    /** Custom information */
     AINFO_CUSTOM_START                = 0x10000000,
 
-    /* Debugging */
+    /** Debugging */
     AINFO_DEBUGGING_START             = 0x40000000,
 };
 
 struct AdditionalInfo {
-    /* type of payload data, see AdditionalInfoType */
+    /** type of payload data, see AdditionalInfoType */
     AdditionalInfoType type;
 
-    /* sequence number of this frame for this type */
+    /** sequence number of this frame for this type */
     int32_t serial;
 
     union Payload {
@@ -1121,27 +1149,31 @@
  * relative humidity in percent
  */
 union EventPayload {
-    /* SensorType::ACCELEROMETER, SensorType::MAGNETIC_FIELD,
+    /**
+     * SensorType::ACCELEROMETER, SensorType::MAGNETIC_FIELD,
      * SensorType::ORIENTATION, SensorType::GYROSCOPE, SensorType::GRAVITY,
      * SensorType::LINEAR_ACCELERATION
      */
     Vec3 vec3;
 
-    /* SensorType::ROTATION_VECTOR, SensorType::GAME_ROTATION_VECTOR,
+    /**
+     * SensorType::ROTATION_VECTOR, SensorType::GAME_ROTATION_VECTOR,
      * SensorType::GEOMAGNETIC_ROTATION_VECTOR
      */
     Vec4 vec4;
 
-    /* SensorType::MAGNETIC_FIELD_UNCALIBRATED,
+    /**
+     * SensorType::MAGNETIC_FIELD_UNCALIBRATED,
      * SensorType::GYROSCOPE_UNCALIBRATED
      * SensorType::ACCELEROMETER_UNCALIBRATED
      */
     Uncal uncal;
 
-    /* SensorType::META_DATA */
+    /** SensorType::META_DATA */
     MetaData meta;
 
-    /* SensorType::DEVICE_ORIENTATION, SensorType::LIGHT, SensorType::PRESSURE,
+    /**
+     * SensorType::DEVICE_ORIENTATION, SensorType::LIGHT, SensorType::PRESSURE,
      * SensorType::TEMPERATURE, SensorType::PROXIMITY,
      * SensorType::RELATIVE_HUMIDITY, SensorType::AMBIENT_TEMPERATURE,
      * SensorType::SIGNIFICANT_MOTION, SensorType::STEP_DETECTOR,
@@ -1153,35 +1185,35 @@
      */
     float scalar;
 
-    /* SensorType::STEP_COUNTER */
+    /** SensorType::STEP_COUNTER */
     uint64_t stepCount;
 
-    /* SensorType::HEART_RATE */
+    /** SensorType::HEART_RATE */
     HeartRate heartRate;
 
-    /* SensorType::POSE_6DOF */
+    /** SensorType::POSE_6DOF */
     float[15] pose6DOF;
 
-    /* SensorType::DYNAMIC_SENSOR_META */
+    /** SensorType::DYNAMIC_SENSOR_META */
     DynamicSensorInfo dynamic;
 
-    /* SensorType::ADDITIONAL_INFO */
+    /** SensorType::ADDITIONAL_INFO */
     AdditionalInfo additional;
 
-    /* undefined/custom sensor type >= SensorType::DEVICE_PRIVATE_BASE */
+    /** undefined/custom sensor type >= SensorType::DEVICE_PRIVATE_BASE */
     float[16] data;
 };
 
 struct Event {
-    /* Time measured in nanoseconds, in "elapsedRealtimeNano()'s" timebase. */
+    /** Time measured in nanoseconds, in "elapsedRealtimeNano()'s" timebase. */
     int64_t timestamp;
 
-    /* sensor identifier */
+    /** sensor identifier */
     int32_t sensorHandle;
 
     SensorType sensorType;
 
-    /* Union discriminated on sensorType */
+    /** Union discriminated on sensorType */
     EventPayload u;
 };
 
diff --git a/soundtrigger/2.0/ISoundTriggerHw.hal b/soundtrigger/2.0/ISoundTriggerHw.hal
index cf35ef1..0c235c9 100644
--- a/soundtrigger/2.0/ISoundTriggerHw.hal
+++ b/soundtrigger/2.0/ISoundTriggerHw.hal
@@ -22,106 +22,110 @@
 
 interface ISoundTriggerHw {
 
-    /*
+    /**
      * Sound trigger implementation descriptor read by the framework via
      * getProperties(). Used by SoundTrigger service to report to applications
      * and manage concurrency and policy.
      */
     struct Properties {
-        /* Implementor name */
+        /** Implementor name */
         string   implementor;
-        /* Implementation description */
+        /** Implementation description */
         string   description;
-        /* Implementation version */
+        /** Implementation version */
         uint32_t version;
-        /* Unique implementation ID. The UUID must change with each version of
+        /**
+         * Unique implementation ID. The UUID must change with each version of
            the engine implementation */
         Uuid     uuid;
-        /* Maximum number of concurrent sound models loaded */
+        /** Maximum number of concurrent sound models loaded */
         uint32_t maxSoundModels;
-        /* Maximum number of key phrases */
+        /** Maximum number of key phrases */
         uint32_t maxKeyPhrases;
-        /* Maximum number of concurrent users detected */
+        /** Maximum number of concurrent users detected */
         uint32_t maxUsers;
-        /* All supported modes. e.g RecognitionMode.VOICE_TRIGGER */
+        /** All supported modes. e.g RecognitionMode.VOICE_TRIGGER */
         uint32_t recognitionModes;
-        /* Supports seamless transition from detection to capture */
+        /** Supports seamless transition from detection to capture */
         bool     captureTransition;
-        /* Maximum buffering capacity in ms if captureTransition is true */
+        /** Maximum buffering capacity in ms if captureTransition is true */
         uint32_t maxBufferMs;
-        /* Supports capture by other use cases while detection is active */
+        /** Supports capture by other use cases while detection is active */
         bool     concurrentCapture;
-        /* Returns the trigger capture in event */
+        /** Returns the trigger capture in event */
         bool     triggerInEvent;
-        /* Rated power consumption when detection is active with TDB
+        /**
+         * Rated power consumption when detection is active with TDB
          * silence/sound/speech ratio */
         uint32_t powerConsumptionMw;
     };
 
 
-    /*
+    /**
      * Base sound model descriptor. This struct is the header of a larger block
      * passed to loadSoundModel() and contains the binary data of the
      * sound model.
      */
     struct SoundModel {
-        /* Model type. e.g. SoundModelType.KEYPHRASE */
+        /** Model type. e.g. SoundModelType.KEYPHRASE */
         SoundModelType type;
-        /* Unique sound model ID. */
+        /** Unique sound model ID. */
         Uuid           uuid;
-        /* Unique vendor ID. Identifies the engine the sound model
+        /**
+         * Unique vendor ID. Identifies the engine the sound model
          * was build for */
         Uuid           vendorUuid;
-        /* Opaque data transparent to Android framework */
+        /** Opaque data transparent to Android framework */
         vec<uint8_t>   data;
     };
 
-    /* Key phrase descriptor */
+    /** Key phrase descriptor */
     struct Phrase {
-        /* Unique keyphrase ID assigned at enrollment time */
+        /** Unique keyphrase ID assigned at enrollment time */
         uint32_t      id;
-        /* Recognition modes supported by this key phrase */
+        /** Recognition modes supported by this key phrase */
         uint32_t      recognitionModes;
-        /* List of users IDs associated with this key phrase */
+        /** List of users IDs associated with this key phrase */
         vec<uint32_t> users;
-        /* Locale - Java Locale style (e.g. en_US) */
+        /** Locale - Java Locale style (e.g. en_US) */
         string        locale;
-        /* Phrase text in UTF-8 format. */
+        /** Phrase text in UTF-8 format. */
         string        text;
     };
 
-    /*
+    /**
      * Specialized sound model for key phrase detection.
      * Proprietary representation of key phrases in binary data must match
      * information indicated by phrases field
      */
     struct PhraseSoundModel {
-        /* Common part of sound model descriptor */
+        /** Common part of sound model descriptor */
         SoundModel  common;
-        /* List of descriptors for key phrases supported by this sound model */
+        /** List of descriptors for key phrases supported by this sound model */
         vec<Phrase> phrases;
     };
 
-    /*
+    /**
      * Configuration for sound trigger capture session passed to
      * startRecognition() method
      */
     struct RecognitionConfig {
-        /* IO handle that will be used for capture. N/A if captureRequested
+        /**
+         * IO handle that will be used for capture. N/A if captureRequested
          * is false */
         AudioIoHandle   captureHandle;
-        /* Input device requested for detection capture */
+        /** Input device requested for detection capture */
         AudioDevice     captureDevice;
-        /* Capture and buffer audio for this recognition instance */
+        /** Capture and buffer audio for this recognition instance */
         bool            captureRequested;
-        /* Configuration for each key phrase */
+        /** Configuration for each key phrase */
         vec<PhraseRecognitionExtra> phrases;
-        /* Opaque capture configuration data transparent to the framework */
+        /** Opaque capture configuration data transparent to the framework */
         vec<uint8_t>    data;
     };
 
 
-    /*
+    /**
      * Retrieve implementation properties.
      * @return retval Operation completion status: 0 in case of success,
      *                -ENODEV in case of initialization error.
@@ -130,7 +134,7 @@
      */
     getProperties() generates (int32_t retval, Properties properties);
 
-    /*
+    /**
      * Load a sound model. Once loaded, recognition of this model can be
      * started and stopped. Only one active recognition per model at a time.
      * The SoundTrigger service must handle concurrent recognition requests by
@@ -158,7 +162,7 @@
                    CallbackCookie cookie)
             generates (int32_t retval, SoundModelHandle modelHandle);
 
-    /*
+    /**
      * Load a key phrase sound model. Once loaded, recognition of this model can
      * be started and stopped. Only one active recognition per model at a time.
      * The SoundTrigger service must handle concurrent recognition requests by
@@ -186,7 +190,7 @@
                    CallbackCookie cookie)
             generates (int32_t retval, SoundModelHandle modelHandle);
 
-    /*
+    /**
      * Unload a sound model. A sound model may be unloaded to make room for a
      * new one to overcome implementation limitations.
      * @param modelHandle the handle of the sound model to unload
@@ -197,7 +201,7 @@
     unloadSoundModel(SoundModelHandle modelHandle)
             generates (int32_t retval);
 
-    /*
+    /**
      * Start recognition on a given model. Only one recognition active
      * at a time per model. Once recognition succeeds of fails, the callback
      * is called.
@@ -221,7 +225,7 @@
                      CallbackCookie cookie)
             generates (int32_t retval);
 
-    /*
+    /**
      * Stop recognition on a given model.
      * The implementation must not call the recognition callback when stopped
      * via this method.
@@ -233,7 +237,7 @@
     stopRecognition(SoundModelHandle modelHandle)
             generates (int32_t retval);
 
-    /*
+    /**
      * Stop recognition on all models.
      * @return retval Operation completion status: 0 in case of success,
      *                -ENODEV in case of initialization error.
diff --git a/soundtrigger/2.0/ISoundTriggerHwCallback.hal b/soundtrigger/2.0/ISoundTriggerHwCallback.hal
index c6555f6..90132d9 100644
--- a/soundtrigger/2.0/ISoundTriggerHwCallback.hal
+++ b/soundtrigger/2.0/ISoundTriggerHwCallback.hal
@@ -29,62 +29,66 @@
         UPDATED  = 0,
     };
 
-    /*
+    /**
      * Generic recognition event sent via recognition callback
      */
     struct RecognitionEvent {
-        /* Recognition status e.g. SUCCESS */
+        /** Recognition status e.g. SUCCESS */
         RecognitionStatus status;
-        /* Sound model type for this event. e.g SoundModelType.TYPE_KEYPHRASE */
+        /** Sound model type for this event. e.g SoundModelType.TYPE_KEYPHRASE */
         SoundModelType    type;
-        /* Handle of loaded sound model which triggered the event */
+        /** Handle of loaded sound model which triggered the event */
         SoundModelHandle  model;
-        /* It is possible to capture audio from this */
-        /* utterance buffered by the implementation */
+        /** It is possible to capture audio from this */
+        /** utterance buffered by the implementation */
         bool              captureAvailable;
-        /* Audio session ID. framework use */
+        /** Audio session ID. framework use */
         int32_t           captureSession;
-        /* Delay in ms between end of model detection and start of audio
-        /* available for capture. A negative value is possible
+        /**
+         * Delay in ms between end of model detection and start of audio
+        /**
+         * available for capture. A negative value is possible
          * (e.g. if key phrase is also available for capture */
         int32_t           captureDelayMs;
-        /* Duration in ms of audio captured before the start of the trigger.
+        /**
+         * Duration in ms of audio captured before the start of the trigger.
          * 0 if none. */
         int32_t           capturePreambleMs;
-        /* The opaque data is the capture of the trigger sound */
+        /** The opaque data is the capture of the trigger sound */
         bool              triggerInData;
-        /* Audio format of either the trigger in event data or to use for
+        /**
+         * Audio format of either the trigger in event data or to use for
          * capture of the rest of the utterance */
         AudioConfig       audioConfig;
-        /* Opaque event data */
+        /** Opaque event data */
         vec<uint8_t>      data;
     };
 
-    /*
+    /**
      * Specialized recognition event for key phrase recognitions
      */
     struct PhraseRecognitionEvent {
-        /* Common part of the recognition event */
+        /** Common part of the recognition event */
         RecognitionEvent common;
-        /* List of descriptors for each recognized key phrase */
+        /** List of descriptors for each recognized key phrase */
         vec<PhraseRecognitionExtra> phraseExtras;
     };
 
-    /*
+    /**
      * Event sent via load sound model callback
      */
     struct ModelEvent {
-         /* Sound model status e.g. SoundModelStatus.UPDATED */
+         /** Sound model status e.g. SoundModelStatus.UPDATED */
         SoundModelStatus status;
-        /* Loaded sound model that triggered the event */
+        /** Loaded sound model that triggered the event */
         SoundModelHandle model;
-        /* Opaque event data, passed transparently by the framework */
+        /** Opaque event data, passed transparently by the framework */
         vec<uint8_t>     data;
     };
 
     typedef int32_t CallbackCookie;
 
-    /*
+    /**
      * Callback method called by the HAL when the sound recognition triggers
      * @param event A RecognitionEvent structure containing detailed results
      *              of the recognition triggered
@@ -93,7 +97,7 @@
      */
     recognitionCallback(RecognitionEvent event, CallbackCookie cookie);
 
-    /*
+    /**
      * Callback method called by the HAL when the sound recognition triggers
      * for a key phrase sound model.
      * @param event A RecognitionEvent structure containing detailed results
@@ -103,7 +107,7 @@
      */
     phraseRecognitionCallback(PhraseRecognitionEvent event,
                               CallbackCookie cookie);
-    /*
+    /**
      * Callback method called by the HAL when the sound model loading completes
      * @param event A ModelEvent structure containing detailed results of the
      *              model loading operation
diff --git a/soundtrigger/2.0/types.hal b/soundtrigger/2.0/types.hal
index 26928ba..fc7d019 100644
--- a/soundtrigger/2.0/types.hal
+++ b/soundtrigger/2.0/types.hal
@@ -16,66 +16,67 @@
 
 package android.hardware.soundtrigger@2.0;
 
-/*
+/**
  * Sound model types modes used in ISoundTriggerHw.SoundModel
  */
 enum SoundModelType : int32_t {
-    /* use for unspecified sound model type */
+    /** use for unspecified sound model type */
     UNKNOWN   = -1,
-    /* use for key phrase sound models */
+    /** use for key phrase sound models */
     KEYPHRASE = 0,
-    /* use for all models other than keyphrase */
+    /** use for all models other than keyphrase */
     GENERIC   = 1,
 };
 
 typedef int32_t SoundModelHandle;
 
 
-/*
+/**
  * Recognition modes used in ISoundTriggerHw.RecognitionConfig,
  * ISoundTriggerHw.Properties or PhraseRecognitionExtra
  */
 enum RecognitionMode : uint32_t {
-    /* simple voice trigger */
+    /** simple voice trigger */
     VOICE_TRIGGER       = (1 << 0),
-    /* trigger only if one user in model identified */
+    /** trigger only if one user in model identified */
     USER_IDENTIFICATION = (1 << 1),
-    /* trigger only if one user in mode authenticated */
+    /** trigger only if one user in mode authenticated */
     USER_AUTHENTICATION = (1 << 2),
-    /* generic sound trigger */
+    /** generic sound trigger */
     GENERIC_TRIGGER     = (1 << 3),
 };
 
-/*
+/**
  * Confidence level for each user in structure PhraseRecognitionExtra
  */
 struct ConfidenceLevel {
-    /* user ID */
+    /** user ID */
     uint32_t userId;
-    /* confidence level in percent (0 - 100): */
-    /* - min level for recognition configuration */
-    /* - detected level for recognition event */
+    /** confidence level in percent (0 - 100): */
+    /** - min level for recognition configuration */
+    /** - detected level for recognition event */
     uint32_t levelPercent;
 };
 
-/*
+/**
  * Specialized recognition event for key phrase detection
  */
 struct PhraseRecognitionExtra {
-    /* keyphrase ID */
+    /** keyphrase ID */
     uint32_t id;
-    /* recognition modes used for this keyphrase */
+    /** recognition modes used for this keyphrase */
     uint32_t recognitionModes;
-    /* confidence level for mode RecognitionMode.VOICE_TRIGGER */
+    /** confidence level for mode RecognitionMode.VOICE_TRIGGER */
     uint32_t confidenceLevel;
-    /* list of confidence levels per user for
+    /**
+     * list of confidence levels per user for
      * RecognitionMode.USER_IDENTIFICATION and
      * RecognitionMode.USER_AUTHENTICATION */
     vec<ConfidenceLevel> levels;
 };
 
-/* TODO(elaurent) remove when Java build problem is fixed */
+/** TODO(elaurent) remove when Java build problem is fixed */
 union Dummy {
   uint32_t dummy1;
   int32_t dummy2;
-};
\ No newline at end of file
+};
diff --git a/thermal/1.0/IThermal.hal b/thermal/1.0/IThermal.hal
index e5f70cb..31a65d4 100644
--- a/thermal/1.0/IThermal.hal
+++ b/thermal/1.0/IThermal.hal
@@ -18,7 +18,7 @@
 
 interface IThermal {
 
-    /*
+    /**
      * Retrieves temperatures in Celsius.
      *
      * @return status Status of the operation. If status code is FAILURE,
@@ -38,7 +38,7 @@
     getTemperatures()
         generates (ThermalStatus status, vec<Temperature> temperatures);
 
-    /*
+    /**
      * Retrieves CPU usage information of each core: active and total times
      * in ms since first boot.
      *
@@ -55,7 +55,7 @@
     @exit
     getCpuUsages() generates (ThermalStatus status, vec<CpuUsage> cpuUsages);
 
-    /*
+    /**
      * Retrieves the cooling devices information.
      *
      * @return status Status of the operation. If status code is FAILURE,
diff --git a/tv/cec/1.0/IHdmiCec.hal b/tv/cec/1.0/IHdmiCec.hal
index e8db265..2840417 100644
--- a/tv/cec/1.0/IHdmiCec.hal
+++ b/tv/cec/1.0/IHdmiCec.hal
@@ -18,11 +18,11 @@
 
 import IHdmiCecCallback;
 
-/*
+/**
  * HDMI-CEC HAL interface definition.
  */
 interface IHdmiCec {
-    /*
+    /**
      * Passes the logical address that must be used in this system.
      *
      * HAL must use it to configure the hardware so that the CEC commands
@@ -39,7 +39,7 @@
     @callflow(next={"*"})
     addLogicalAddress(CecLogicalAddress addr) generates (Result result);
 
-    /*
+    /**
      * Clears all the logical addresses.
      *
      * It is used when the system doesn't need to process CEC command any more,
@@ -50,7 +50,7 @@
     @exit
     clearLogicalAddress();
 
-    /*
+    /**
      * Gets the CEC physical address.
      *
      * The physical address depends on the topology of the network formed by
@@ -66,7 +66,7 @@
     @callflow(next="*")
     getPhysicalAddress() generates (Result result, uint16_t addr);
 
-    /*
+    /**
      * Transmits HDMI-CEC message to other HDMI device.
      *
      * The method must be designed to return in a certain amount of time and not
@@ -84,7 +84,7 @@
     @callflow(next="*")
     sendMessage(CecMessage message) generates (SendMessageResult result);
 
-    /*
+    /**
      * Sets a callback that HDMI-CEC HAL must later use for incoming CEC
      * messages or internal HDMI events.
      *
@@ -95,7 +95,7 @@
     @entry
     setCallback(IHdmiCecCallback callback);
 
-    /*
+    /**
      * Returns the CEC version supported by underlying hardware.
      *
      * @return version the CEC version supported by underlying hardware.
@@ -103,7 +103,7 @@
     @callflow(next={"*"})
     getCecVersion() generates (int32_t version);
 
-    /*
+    /**
      * Gets the identifier of the vendor.
      *
      * @return vendorId Identifier of the vendor that is the 24-bit unique
@@ -113,7 +113,7 @@
     @callflow(next={"*"})
     getVendorId() generates (uint32_t vendorId);
 
-    /*
+    /**
      * Gets the hdmi port information of underlying hardware.
      *
      * @return infos The list of HDMI port information
@@ -121,7 +121,7 @@
     @callflow(next={"*"})
     getPortInfo() generates (vec<HdmiPortInfo> infos);
 
-    /*
+    /**
      * Sets flags controlling the way HDMI-CEC service works down to HAL
      * implementation. Those flags must be used in case the feature needs update
      * in HAL itself, firmware or microcontroller.
@@ -132,7 +132,7 @@
     @callflow(next="*")
     setOption(OptionKey key, bool value);
 
-    /*
+    /**
      * Passes the updated language information of Android system. Contains
      * three-letter code as defined in ISO/FDIS 639-2. Must be used for HAL to
      * respond to <Get Menu Language> while in standby mode.
@@ -143,7 +143,7 @@
     @callflow(next="*")
     setLanguage(string language);
 
-    /*
+    /**
      * Configures ARC circuit in the hardware logic to start or stop the
      * feature.
      *
@@ -154,7 +154,7 @@
     @callflow(next="*")
     enableAudioReturnChannel(int32_t portId, bool enable);
 
-    /*
+    /**
      * Gets the connection status of the specified port.
      *
      * @param portId Port id to be inspected for the connection status.
diff --git a/tv/cec/1.0/IHdmiCecCallback.hal b/tv/cec/1.0/IHdmiCecCallback.hal
index 4a9d28f..754d19f 100644
--- a/tv/cec/1.0/IHdmiCecCallback.hal
+++ b/tv/cec/1.0/IHdmiCecCallback.hal
@@ -17,13 +17,13 @@
 package android.hardware.tv.cec@1.0;
 
 interface IHdmiCecCallback {
-    /*
+    /**
      * The callback function that must be called by HAL implementation to notify
      * the system of new CEC message arrival.
      */
     oneway onCecMessage(CecMessage message);
 
-    /*
+    /**
      * The callback function that must be called by HAL implementation to notify
      * the system of new hotplug event.
      */
diff --git a/tv/cec/1.0/types.hal b/tv/cec/1.0/types.hal
index ec2e373..a1853a3 100644
--- a/tv/cec/1.0/types.hal
+++ b/tv/cec/1.0/types.hal
@@ -48,7 +48,7 @@
     BROADCAST = 15, // as Destination address
 };
 
-/*
+/**
  * HDMI CEC message types. The assigned values represent opcode used in CEC
  * frame as specified in CEC Table 8-26 of the CEC Spec 1.4b.
  */
@@ -123,7 +123,7 @@
     ABORT = 0xFF,
 };
 
-/*
+/**
  * Operand description [Abort Reason]
  */
 enum AbortReason : int32_t {
@@ -144,7 +144,7 @@
     FAILURE_BUSY = 5,
 };
 
-/*
+/**
  * error code used for send_message.
  */
 enum SendMessageResult : int32_t {
@@ -154,7 +154,7 @@
     FAIL = 3,
 };
 
-/*
+/**
  * HDMI port type.
  */
 enum HdmiPortType : int32_t {
@@ -162,24 +162,27 @@
     OUTPUT = 1,
 };
 
-/*
+/**
  * Options used for IHdmiCec.setOption()
  */
 enum OptionKey : int32_t {
-    /* When set to false, HAL does not wake up the system upon receiving <Image
+    /**
+     * When set to false, HAL does not wake up the system upon receiving <Image
      * View On> or <Text View On>. Used when user changes the TV settings to
      * disable the auto TV on functionality.
      * True by default.
      */
     WAKEUP = 1,
 
-    /* When set to false, all the CEC commands are discarded. Used when user
+    /**
+     * When set to false, all the CEC commands are discarded. Used when user
      * changes the TV settings to disable CEC functionality.
      * True by default.
      */
     ENABLE_CEC = 2,
 
-    /* Setting this flag to false means Android system must stop handling CEC
+    /**
+     * Setting this flag to false means Android system must stop handling CEC
      * service and yield the control over to the microprocessor that is powered
      * on through the standby mode. When set to true, the system must gain the
      * control over, hence telling the microprocessor to stop handling the CEC
@@ -190,17 +193,18 @@
      */
     SYSTEM_CEC_CONTROL = 3,
 
-    /* Option 4 not used */
+    /** Option 4 not used */
 };
 
 struct CecMessage {
-    /* logical address of sender */
+    /** logical address of sender */
     CecLogicalAddress initiator;
 
-    /* logical address of receiver */
+    /** logical address of receiver */
     CecLogicalAddress destination;
 
-    /* The maximum size of body is 15 (MaxLength::MESSAGE_BODY) as specified in
+    /**
+     * The maximum size of body is 15 (MaxLength::MESSAGE_BODY) as specified in
      * the section 6 of the CEC Spec 1.4b. Overflowed data must be ignored. */
     vec<uint8_t> body;
 };
@@ -210,7 +214,7 @@
     uint32_t portId;
 };
 
-/*
+/**
  * HDMI port descriptor
  */
 struct HdmiPortInfo {
diff --git a/tv/input/1.0/ITvInput.hal b/tv/input/1.0/ITvInput.hal
index 43de276..95aff21 100644
--- a/tv/input/1.0/ITvInput.hal
+++ b/tv/input/1.0/ITvInput.hal
@@ -19,7 +19,7 @@
 import ITvInputCallback;
 
 interface ITvInput {
-    /*
+    /**
      * Sets a callback for events.
      *
      * Note that initially no device is available in the client side, so the
@@ -33,7 +33,7 @@
     @callflow(next={"getStreamConfigurations"})
     setCallback(ITvInputCallback callback);
 
-    /*
+    /**
      * Gets stream configurations for a specific device.
      *
      * The configs object is valid only until the next
@@ -48,7 +48,7 @@
     getStreamConfigurations(int32_t deviceId)
             generates (Result result, vec<TvStreamConfig> configurations);
 
-    /*
+    /**
      * Opens a specific stream in a device.
      *
      * @param deviceId Device ID for the steam to open.
@@ -65,7 +65,7 @@
     openStream(int32_t deviceId, int32_t streamId)
             generates (Result result, handle sidebandStream);
 
-    /*
+    /**
      * Closes a specific stream in a device.
      *
      * @param deviceId Device ID for the steam to open.
diff --git a/tv/input/1.0/ITvInputCallback.hal b/tv/input/1.0/ITvInputCallback.hal
index f2f07a0..6d88c5b 100644
--- a/tv/input/1.0/ITvInputCallback.hal
+++ b/tv/input/1.0/ITvInputCallback.hal
@@ -17,7 +17,7 @@
 package android.hardware.tv.input@1.0;
 
 interface ITvInputCallback {
-    /*
+    /**
      * Notifies the client that an event has occured. For possible event types,
      * check TvInputEventType.
      *
diff --git a/tv/input/1.0/types.hal b/tv/input/1.0/types.hal
index 60a3b7b..55dd6c0 100644
--- a/tv/input/1.0/types.hal
+++ b/tv/input/1.0/types.hal
@@ -26,7 +26,7 @@
     INVALID_STATE,
 };
 
-/* Type of physical TV input. */
+/** Type of physical TV input. */
 @export(name="", value_prefix="TV_INPUT_TYPE_")
 enum TvInputType : int32_t {
     OTHER = 1,         // Generic hardware.
@@ -41,7 +41,7 @@
     DISPLAY_PORT = 10,
 };
 
-/*
+/**
  * Status of cable connection.
  * This status is for devices having availability to detect the cable in a mechanical way,
  * regardless of whether the connected external device is electrically on or not.
@@ -67,7 +67,7 @@
 
 @export(name="", value_prefix="EVENT_")
 enum TvInputEventType : int32_t {
-    /*
+    /**
      * Hardware notifies the framework that a device is available.
      *
      * Note that DEVICE_AVAILABLE and DEVICE_UNAVAILABLE events do not represent
@@ -89,7 +89,7 @@
      */
     DEVICE_AVAILABLE = 1,
 
-    /*
+    /**
      * Hardware notifies the framework that a device is unavailable.
      *
      * HAL implementation must generate this event when a device registered
@@ -104,7 +104,7 @@
      */
     DEVICE_UNAVAILABLE = 2,
 
-    /*
+    /**
      * Stream configurations are changed. Client must regard all open streams
      * at the specific device are closed, and must call
      * getStreamConfigurations() again, opening some of them if necessary.
@@ -126,7 +126,7 @@
 
 struct TvInputEvent {
     TvInputEventType type;
-    /*
+    /**
      * DEVICE_AVAILABLE: all fields are relevant.
      * DEVICE_UNAVAILABLE: only deviceId is relevant.
      * STREAM_CONFIGURATIONS_CHANGED: only deviceId is relevant.
diff --git a/usb/1.0/IUsb.hal b/usb/1.0/IUsb.hal
index 965326a..f464379 100644
--- a/usb/1.0/IUsb.hal
+++ b/usb/1.0/IUsb.hal
@@ -19,7 +19,7 @@
 import IUsbCallback;
 
 interface IUsb {
-    /*
+    /**
      * This function is used to change the port role of a specific port.
      * For example, when PD_SWAP or PR_SWAP is supported.
      * This is function is asynchronous. The status of the role switch
@@ -31,7 +31,7 @@
      */
     oneway switchRole(string portName, PortRole role);
 
-    /*
+    /**
      * This function is used to register a callback function which is
      * called by the HAL whenever there is a change in the port state.
      * i.e. DATA_ROLE, POWER_ROLE or MODE.
@@ -44,7 +44,7 @@
      */
     oneway setCallback(IUsbCallback callback);
 
-    /*
+    /**
      * This functions is used to request the hal for the current status
      * status of the Type-C ports. This method is async/oneway. The result of the
      * query would be sent through the IUsbCallback object's notifyRoleSwitchStatus
diff --git a/usb/1.0/IUsbCallback.hal b/usb/1.0/IUsbCallback.hal
index b665ba3..fd91cbf 100644
--- a/usb/1.0/IUsbCallback.hal
+++ b/usb/1.0/IUsbCallback.hal
@@ -16,13 +16,13 @@
 
 package android.hardware.usb@1.0;
 
-/*
+/**
  * Callback object used for all the IUsb async methods which expects a result.
  * Caller is expected to register the callback object using setCallback method
  * to receive updates on the PortStatus.
  */
 interface IUsbCallback {
-    /*
+    /**
      * Used to convey the current port status to the caller.
      * Called either when PortState changes due to the port partner (or)
      * when caller requested for the PortStatus update through queryPortStatus.
@@ -34,7 +34,7 @@
      */
     oneway notifyPortStatusChange(vec<PortStatus> currentPortStatus, Status retval);
 
-    /*
+    /**
      * Used to notify the result of the switchRole call to the caller.
      *
      * @param portName name of the port for which the roleswap is requested.
diff --git a/usb/1.0/types.hal b/usb/1.0/types.hal
index 17cd8c7..302616e 100644
--- a/usb/1.0/types.hal
+++ b/usb/1.0/types.hal
@@ -19,42 +19,42 @@
 enum Status : uint32_t {
     SUCCESS = 0,
 
-    /*
+    /**
      * error value when the HAL operation fails for reasons not listed here.
      */
     ERROR = 1,
 
-    /*
+    /**
      * error value returned when input argument is invalid.
      */
     INVALID_ARGUMENT = 2,
 
-    /*
+    /**
      * error value returned when role string is unrecognized.
      */
     UNRECOGNIZED_ROLE = 3,
 };
 
-/*
+/**
  * Denotes the Port role type.
  * Passed as an argument for functions used to query or change port roles.
  */
 enum PortRoleType : uint32_t {
-    /*
+    /**
      * Denotes the data role of the port.
      * The port can either be a "host" or a "device" for data.
      * This maps to the PortDataRole enum.
      */
     DATA_ROLE = 0,
 
-    /*
+    /**
      * Denotes the power role of the port.
      * The port can either be a "source" or "sink" for power.
      * This maps to PortPowerRole enum.
      */
     POWER_ROLE = 1,
 
-    /*
+    /**
      * USB ports can be a pure DFP port which can only act
      * as a host. A UFP port which can only act as a device.
      * Or a dual role ports which can either can as a host or
@@ -65,19 +65,19 @@
 
 @export
 enum PortDataRole : uint32_t {
-    /*
+    /**
      * Indicates that the port does not have a data role.
      * In case of DRP, the current data role of the port is only resolved
      * when the type-c handshake happens.
      */
     NONE = 0,
 
-    /*
+    /**
      * Indicates that the port is acting as a host for data.
      */
     HOST = 1,
 
-    /*
+    /**
      * Indicated that the port is acting as a device for data.
      */
     DEVICE = 2,
@@ -87,19 +87,19 @@
 
 @export
 enum PortPowerRole : uint32_t {
-    /*
+    /**
      * Indicates that the port does not have a power role.
      * In case of DRP, the current power role of the port is only resolved
      * when the type-c handshake happens.
      */
     NONE = 0,
 
-    /*
+    /**
      * Indicates that the port is supplying power to the other port.
      */
     SOURCE = 1,
 
-    /*
+    /**
      * Indicates that the port is sinking power from the other port.
      */
     SINK = 2,
@@ -109,23 +109,23 @@
 
 @export
 enum PortMode : uint32_t {
-    /*
+    /**
      * Indicates that the port does not have a mode.
      * In case of DRP, the current mode of the port is only resolved
      * when the type-c handshake happens.
      */
     NONE = 0,
-    /*
+    /**
      * Indicates that port can only act as device for data and sink for power.
      */
     UFP = 1,
 
-    /*
+    /**
      * Indicates the port can only act as host for data and source for power.
      */
     DFP = 2,
 
-    /*
+    /**
      * Indicates can either act as UFP or DFP at a given point of time.
      */
     DRP = 3,
@@ -133,17 +133,17 @@
     NUM_MODES = 4,
 };
 
-/*
+/**
  * Used as a container to send port role information.
  */
 struct PortRole {
-    /*
+    /**
      * Indicates the type of Port Role.
      * Maps to the PortRoleType enum.
      */
     PortRoleType type;
 
-    /*
+    /**
      * when type is HAL_USB_DATA_ROLE pass values from enum PortDataRole.
      * when type is HAL_USB_POWER_ROLE pass values from enum PortPowerRole.
      * when type is HAL_USB_MODE pass values from enum PortMode.
@@ -151,40 +151,40 @@
     uint32_t role;
 };
 
-/*
+/**
  * Used as the container to report data back to the caller.
  * Represents the current connection status of a single USB port.
  */
 struct PortStatus {
-     /*
+     /**
       * Name of the port.
       * Used as the port's id by the caller.
       */
      string portName;
 
-     /*
+     /**
       * Data role of the port.
       */
      PortDataRole currentDataRole;
 
-     /*
+     /**
       * Power Role of thte port.
       */
      PortPowerRole currentPowerRole;
 
-     /*
+     /**
       * Mode in which the port is connected.
       * Can be UFP or DFP.
       */
      PortMode currentMode;
 
-     /*
+     /**
       * True indicates that the port's mode can
       * be changed. False otherwise.
       */
      bool canChangeMode;
 
-     /*
+     /**
       * True indicates that the port's data role
       * can be changed. False otherwise.
       * For example, true if Type-C PD PD_SWAP
@@ -192,7 +192,7 @@
       */
      bool canChangeDataRole;
 
-     /*
+     /**
       * True indicates that the port's power role
       * can be changed. False otherwise.
       * For example, true if Type-C PD PR_SWAP
@@ -200,7 +200,7 @@
       */
      bool canChangePowerRole;
 
-     /*
+     /**
       * Identifies the type of the local port.
       *
       * UFP - Indicates that port can only act as device for