diff --git a/audio/Android.bp b/audio/Android.bp
index 4117288..3121a36 100644
--- a/audio/Android.bp
+++ b/audio/Android.bp
@@ -3,4 +3,5 @@
     "2.0",
     "common/2.0",
     "effect/2.0",
+    "effect/2.0/vts/functional",
 ]
diff --git a/audio/effect/2.0/vts/functional/Android.bp b/audio/effect/2.0/vts/functional/Android.bp
new file mode 100644
index 0000000..fc198e5
--- /dev/null
+++ b/audio/effect/2.0/vts/functional/Android.bp
@@ -0,0 +1,36 @@
+//
+// Copyright (C) 2016 The Android Open Source Project
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//      http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+
+cc_test {
+    name: "audio_effect_hidl_hal_test",
+    gtest: true,
+    srcs: ["audio_effect_hidl_hal_test.cpp"],
+    shared_libs: [
+        "libbase",
+        "liblog",
+        "libcutils",
+        "libhidl",
+        "libhwbinder",
+        "libnativehelper",
+        "libutils",
+        "android.hardware.audio.effect@2.0",
+    ],
+    static_libs: ["libgtest"],
+    cflags: [
+        "-O0",
+        "-g",
+    ],
+}
diff --git a/audio/effect/2.0/vts/functional/audio_effect_hidl_hal_test.cpp b/audio/effect/2.0/vts/functional/audio_effect_hidl_hal_test.cpp
new file mode 100644
index 0000000..ddd5eac
--- /dev/null
+++ b/audio/effect/2.0/vts/functional/audio_effect_hidl_hal_test.cpp
@@ -0,0 +1,168 @@
+/*
+ * Copyright (C) 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#define LOG_TAG "AudioEffectHidlHalTest"
+#include <android-base/logging.h>
+#include <cutils/native_handle.h>
+
+#include <android/hardware/audio/effect/2.0/IEffectsFactory.h>
+#include <android/hardware/audio/effect/2.0/types.h>
+
+#include <gtest/gtest.h>
+
+using ::android::hardware::audio::common::V2_0::Uuid;
+using ::android::hardware::audio::effect::V2_0::EffectDescriptor;
+using ::android::hardware::audio::effect::V2_0::IEffect;
+using ::android::hardware::audio::effect::V2_0::IEffectsFactory;
+using ::android::hardware::audio::effect::V2_0::Result;
+using ::android::hardware::Return;
+using ::android::hardware::Status;
+using ::android::hardware::Void;
+using ::android::hardware::hidl_vec;
+using ::android::sp;
+
+// The main test class for Audio Effect HIDL HAL.
+class AudioEffectHidlTest : public ::testing::Test {
+ public:
+  virtual void SetUp() override {
+    // currently test passthrough mode only
+    effectsFactory = IEffectsFactory::getService("audio_effects_factory", true);
+    ASSERT_NE(effectsFactory, nullptr);
+  }
+
+  virtual void TearDown() override {}
+
+  sp<IEffectsFactory> effectsFactory;
+};
+
+// A class for test environment setup (kept since this file is a template).
+class AudioEffectHidlEnvironment : public ::testing::Environment {
+ public:
+  virtual void SetUp() {}
+  virtual void TearDown() {}
+
+ private:
+};
+
+TEST_F(AudioEffectHidlTest, EnumerateEffects) {
+  Result retval = Result::NOT_INITIALIZED;
+  size_t effectCount = 0;
+  Return<void> ret = effectsFactory->getAllDescriptors(
+      [&](Result r, const hidl_vec<EffectDescriptor>& result) {
+        retval = r;
+        effectCount = result.size();
+      });
+  EXPECT_EQ(ret.getStatus().exceptionCode(), Status::EX_NONE);
+  EXPECT_EQ(retval, Result::OK);
+  EXPECT_GT(effectCount, 0u);
+}
+
+TEST_F(AudioEffectHidlTest, CreateEffect) {
+  bool gotEffect = false;
+  Uuid effectUuid;
+  Return<void> ret = effectsFactory->getAllDescriptors(
+      [&](Result r, const hidl_vec<EffectDescriptor>& result) {
+        if (r == Result::OK && result.size() > 0) {
+          gotEffect = true;
+          effectUuid = result[0].uuid;
+        }
+      });
+  ASSERT_EQ(ret.getStatus().exceptionCode(), Status::EX_NONE);
+  ASSERT_TRUE(gotEffect);
+  Result retval = Result::NOT_INITIALIZED;
+  sp<IEffect> effect;
+  ret = effectsFactory->createEffect(effectUuid, 1, 1,
+                                     [&](Result r, const sp<IEffect>& result) {
+                                       retval = r;
+                                       if (r == Result::OK) {
+                                         effect = result;
+                                       }
+                                     });
+  EXPECT_EQ(ret.getStatus().exceptionCode(), Status::EX_NONE);
+  EXPECT_EQ(retval, Result::OK);
+  EXPECT_NE(effect, nullptr);
+}
+
+// See b/32834072 -- we should have those operator== generated by hidl-gen.
+
+namespace android {
+namespace hardware {
+namespace audio {
+namespace common {
+namespace V2_0 {
+
+static bool operator==(const Uuid& lhs, const Uuid& rhs) {
+  return lhs.timeLow == rhs.timeLow && lhs.timeMid == rhs.timeMid &&
+         lhs.versionAndTimeHigh == rhs.versionAndTimeHigh &&
+         lhs.variantAndClockSeqHigh == rhs.variantAndClockSeqHigh &&
+         memcmp(lhs.node.data(), rhs.node.data(), lhs.node.size()) == 0;
+}
+
+}  // namespace V2_0
+}  // namespace common
+}  // namespace audio
+}  // namespace hardware
+}  // namespace android
+
+namespace android {
+namespace hardware {
+namespace audio {
+namespace effect {
+namespace V2_0 {
+
+static bool operator==(const EffectDescriptor& lhs,
+                       const EffectDescriptor& rhs) {
+  return lhs.type == rhs.type && lhs.uuid == rhs.uuid &&
+         lhs.flags == rhs.flags && lhs.cpuLoad == rhs.cpuLoad &&
+         lhs.memoryUsage == rhs.memoryUsage &&
+         memcmp(lhs.name.data(), rhs.name.data(), lhs.name.size()) == 0 &&
+         memcmp(lhs.implementor.data(), rhs.implementor.data(),
+                lhs.implementor.size()) == 0;
+}
+
+}  // namespace V2_0
+}  // namespace effect
+}  // namespace audio
+}  // namespace hardware
+}  // namespace android
+
+TEST_F(AudioEffectHidlTest, GetDescriptor) {
+  hidl_vec<EffectDescriptor> allDescriptors;
+  Return<void> ret = effectsFactory->getAllDescriptors(
+      [&](Result r, const hidl_vec<EffectDescriptor>& result) {
+        if (r == Result::OK) {
+          allDescriptors = result;
+        }
+      });
+  ASSERT_EQ(ret.getStatus().exceptionCode(), Status::EX_NONE);
+  ASSERT_GT(allDescriptors.size(), 0u);
+  for (size_t i = 0; i < allDescriptors.size(); ++i) {
+    ret = effectsFactory->getDescriptor(
+        allDescriptors[i].uuid, [&](Result r, const EffectDescriptor& result) {
+          EXPECT_EQ(r, Result::OK);
+          EXPECT_EQ(result, allDescriptors[i]);
+        });
+  }
+  EXPECT_EQ(ret.getStatus().exceptionCode(), Status::EX_NONE);
+}
+
+int main(int argc, char** argv) {
+  ::testing::AddGlobalTestEnvironment(new AudioEffectHidlEnvironment);
+  ::testing::InitGoogleTest(&argc, argv);
+  int status = RUN_ALL_TESTS();
+  ALOGI("Test result = %d", status);
+  return status;
+}
diff --git a/contexthub/1.0/Android.bp b/contexthub/1.0/Android.bp
new file mode 100644
index 0000000..23c44de
--- /dev/null
+++ b/contexthub/1.0/Android.bp
@@ -0,0 +1,59 @@
+// This file is autogenerated by hidl-gen. Do not edit manually.
+
+genrule {
+    name: "android.hardware.contexthub@1.0_genc++",
+    tools: ["hidl-gen"],
+    cmd: "$(location hidl-gen) -o $(genDir) -Lc++ -randroid.hardware:hardware/interfaces android.hardware.contexthub@1.0",
+    srcs: [
+        "types.hal",
+        "IContexthub.hal",
+        "IContexthubCallback.hal",
+    ],
+    out: [
+        "android/hardware/contexthub/1.0/types.cpp",
+        "android/hardware/contexthub/1.0/ContexthubAll.cpp",
+        "android/hardware/contexthub/1.0/ContexthubCallbackAll.cpp",
+    ],
+}
+
+genrule {
+    name: "android.hardware.contexthub@1.0_genc++_headers",
+    tools: ["hidl-gen"],
+    cmd: "$(location hidl-gen) -o $(genDir) -Lc++ -randroid.hardware:hardware/interfaces android.hardware.contexthub@1.0",
+    srcs: [
+        "types.hal",
+        "IContexthub.hal",
+        "IContexthubCallback.hal",
+    ],
+    out: [
+        "android/hardware/contexthub/1.0/types.h",
+        "android/hardware/contexthub/1.0/IContexthub.h",
+        "android/hardware/contexthub/1.0/IHwContexthub.h",
+        "android/hardware/contexthub/1.0/BnContexthub.h",
+        "android/hardware/contexthub/1.0/BpContexthub.h",
+        "android/hardware/contexthub/1.0/BsContexthub.h",
+        "android/hardware/contexthub/1.0/IContexthubCallback.h",
+        "android/hardware/contexthub/1.0/IHwContexthubCallback.h",
+        "android/hardware/contexthub/1.0/BnContexthubCallback.h",
+        "android/hardware/contexthub/1.0/BpContexthubCallback.h",
+        "android/hardware/contexthub/1.0/BsContexthubCallback.h",
+    ],
+}
+
+cc_library_shared {
+    name: "android.hardware.contexthub@1.0",
+    generated_sources: ["android.hardware.contexthub@1.0_genc++"],
+    generated_headers: ["android.hardware.contexthub@1.0_genc++_headers"],
+    export_generated_headers: ["android.hardware.contexthub@1.0_genc++_headers"],
+    shared_libs: [
+        "libhidl",
+        "libhwbinder",
+        "libutils",
+        "libcutils",
+    ],
+    export_shared_lib_headers: [
+        "libhidl",
+        "libhwbinder",
+        "libutils",
+    ],
+}
diff --git a/contexthub/1.0/Android.mk b/contexthub/1.0/Android.mk
new file mode 100644
index 0000000..72291e6
--- /dev/null
+++ b/contexthub/1.0/Android.mk
@@ -0,0 +1,552 @@
+# This file is autogenerated by hidl-gen. Do not edit manually.
+
+LOCAL_PATH := $(call my-dir)
+
+################################################################################
+
+include $(CLEAR_VARS)
+LOCAL_MODULE := android.hardware.contexthub@1.0-java
+LOCAL_MODULE_CLASS := JAVA_LIBRARIES
+
+intermediates := $(local-generated-sources-dir)
+
+HIDL := $(HOST_OUT_EXECUTABLES)/hidl-gen$(HOST_EXECUTABLE_SUFFIX)
+
+#
+# Build types.hal (AsyncEventType)
+#
+GEN := $(intermediates)/android/hardware/contexthub/1.0/AsyncEventType.java
+$(GEN): $(HIDL)
+$(GEN): PRIVATE_HIDL := $(HIDL)
+$(GEN): PRIVATE_DEPS := $(LOCAL_PATH)/types.hal
+$(GEN): PRIVATE_OUTPUT_DIR := $(intermediates)
+$(GEN): PRIVATE_CUSTOM_TOOL = \
+        $(PRIVATE_HIDL) -o $(PRIVATE_OUTPUT_DIR) \
+        -Ljava -randroid.hardware:hardware/interfaces \
+        android.hardware.contexthub@1.0::types.AsyncEventType
+
+$(GEN): $(LOCAL_PATH)/types.hal
+	$(transform-generated-source)
+LOCAL_GENERATED_SOURCES += $(GEN)
+
+#
+# Build types.hal (ContextHub)
+#
+GEN := $(intermediates)/android/hardware/contexthub/1.0/ContextHub.java
+$(GEN): $(HIDL)
+$(GEN): PRIVATE_HIDL := $(HIDL)
+$(GEN): PRIVATE_DEPS := $(LOCAL_PATH)/types.hal
+$(GEN): PRIVATE_OUTPUT_DIR := $(intermediates)
+$(GEN): PRIVATE_CUSTOM_TOOL = \
+        $(PRIVATE_HIDL) -o $(PRIVATE_OUTPUT_DIR) \
+        -Ljava -randroid.hardware:hardware/interfaces \
+        android.hardware.contexthub@1.0::types.ContextHub
+
+$(GEN): $(LOCAL_PATH)/types.hal
+	$(transform-generated-source)
+LOCAL_GENERATED_SOURCES += $(GEN)
+
+#
+# Build types.hal (ContextHubMsg)
+#
+GEN := $(intermediates)/android/hardware/contexthub/1.0/ContextHubMsg.java
+$(GEN): $(HIDL)
+$(GEN): PRIVATE_HIDL := $(HIDL)
+$(GEN): PRIVATE_DEPS := $(LOCAL_PATH)/types.hal
+$(GEN): PRIVATE_OUTPUT_DIR := $(intermediates)
+$(GEN): PRIVATE_CUSTOM_TOOL = \
+        $(PRIVATE_HIDL) -o $(PRIVATE_OUTPUT_DIR) \
+        -Ljava -randroid.hardware:hardware/interfaces \
+        android.hardware.contexthub@1.0::types.ContextHubMsg
+
+$(GEN): $(LOCAL_PATH)/types.hal
+	$(transform-generated-source)
+LOCAL_GENERATED_SOURCES += $(GEN)
+
+#
+# Build types.hal (HubAppInfo)
+#
+GEN := $(intermediates)/android/hardware/contexthub/1.0/HubAppInfo.java
+$(GEN): $(HIDL)
+$(GEN): PRIVATE_HIDL := $(HIDL)
+$(GEN): PRIVATE_DEPS := $(LOCAL_PATH)/types.hal
+$(GEN): PRIVATE_OUTPUT_DIR := $(intermediates)
+$(GEN): PRIVATE_CUSTOM_TOOL = \
+        $(PRIVATE_HIDL) -o $(PRIVATE_OUTPUT_DIR) \
+        -Ljava -randroid.hardware:hardware/interfaces \
+        android.hardware.contexthub@1.0::types.HubAppInfo
+
+$(GEN): $(LOCAL_PATH)/types.hal
+	$(transform-generated-source)
+LOCAL_GENERATED_SOURCES += $(GEN)
+
+#
+# Build types.hal (HubMemoryFlag)
+#
+GEN := $(intermediates)/android/hardware/contexthub/1.0/HubMemoryFlag.java
+$(GEN): $(HIDL)
+$(GEN): PRIVATE_HIDL := $(HIDL)
+$(GEN): PRIVATE_DEPS := $(LOCAL_PATH)/types.hal
+$(GEN): PRIVATE_OUTPUT_DIR := $(intermediates)
+$(GEN): PRIVATE_CUSTOM_TOOL = \
+        $(PRIVATE_HIDL) -o $(PRIVATE_OUTPUT_DIR) \
+        -Ljava -randroid.hardware:hardware/interfaces \
+        android.hardware.contexthub@1.0::types.HubMemoryFlag
+
+$(GEN): $(LOCAL_PATH)/types.hal
+	$(transform-generated-source)
+LOCAL_GENERATED_SOURCES += $(GEN)
+
+#
+# Build types.hal (HubMemoryType)
+#
+GEN := $(intermediates)/android/hardware/contexthub/1.0/HubMemoryType.java
+$(GEN): $(HIDL)
+$(GEN): PRIVATE_HIDL := $(HIDL)
+$(GEN): PRIVATE_DEPS := $(LOCAL_PATH)/types.hal
+$(GEN): PRIVATE_OUTPUT_DIR := $(intermediates)
+$(GEN): PRIVATE_CUSTOM_TOOL = \
+        $(PRIVATE_HIDL) -o $(PRIVATE_OUTPUT_DIR) \
+        -Ljava -randroid.hardware:hardware/interfaces \
+        android.hardware.contexthub@1.0::types.HubMemoryType
+
+$(GEN): $(LOCAL_PATH)/types.hal
+	$(transform-generated-source)
+LOCAL_GENERATED_SOURCES += $(GEN)
+
+#
+# Build types.hal (MemRange)
+#
+GEN := $(intermediates)/android/hardware/contexthub/1.0/MemRange.java
+$(GEN): $(HIDL)
+$(GEN): PRIVATE_HIDL := $(HIDL)
+$(GEN): PRIVATE_DEPS := $(LOCAL_PATH)/types.hal
+$(GEN): PRIVATE_OUTPUT_DIR := $(intermediates)
+$(GEN): PRIVATE_CUSTOM_TOOL = \
+        $(PRIVATE_HIDL) -o $(PRIVATE_OUTPUT_DIR) \
+        -Ljava -randroid.hardware:hardware/interfaces \
+        android.hardware.contexthub@1.0::types.MemRange
+
+$(GEN): $(LOCAL_PATH)/types.hal
+	$(transform-generated-source)
+LOCAL_GENERATED_SOURCES += $(GEN)
+
+#
+# Build types.hal (NanoAppBinary)
+#
+GEN := $(intermediates)/android/hardware/contexthub/1.0/NanoAppBinary.java
+$(GEN): $(HIDL)
+$(GEN): PRIVATE_HIDL := $(HIDL)
+$(GEN): PRIVATE_DEPS := $(LOCAL_PATH)/types.hal
+$(GEN): PRIVATE_OUTPUT_DIR := $(intermediates)
+$(GEN): PRIVATE_CUSTOM_TOOL = \
+        $(PRIVATE_HIDL) -o $(PRIVATE_OUTPUT_DIR) \
+        -Ljava -randroid.hardware:hardware/interfaces \
+        android.hardware.contexthub@1.0::types.NanoAppBinary
+
+$(GEN): $(LOCAL_PATH)/types.hal
+	$(transform-generated-source)
+LOCAL_GENERATED_SOURCES += $(GEN)
+
+#
+# Build types.hal (NanoAppFlags)
+#
+GEN := $(intermediates)/android/hardware/contexthub/1.0/NanoAppFlags.java
+$(GEN): $(HIDL)
+$(GEN): PRIVATE_HIDL := $(HIDL)
+$(GEN): PRIVATE_DEPS := $(LOCAL_PATH)/types.hal
+$(GEN): PRIVATE_OUTPUT_DIR := $(intermediates)
+$(GEN): PRIVATE_CUSTOM_TOOL = \
+        $(PRIVATE_HIDL) -o $(PRIVATE_OUTPUT_DIR) \
+        -Ljava -randroid.hardware:hardware/interfaces \
+        android.hardware.contexthub@1.0::types.NanoAppFlags
+
+$(GEN): $(LOCAL_PATH)/types.hal
+	$(transform-generated-source)
+LOCAL_GENERATED_SOURCES += $(GEN)
+
+#
+# Build types.hal (PhysicalSensor)
+#
+GEN := $(intermediates)/android/hardware/contexthub/1.0/PhysicalSensor.java
+$(GEN): $(HIDL)
+$(GEN): PRIVATE_HIDL := $(HIDL)
+$(GEN): PRIVATE_DEPS := $(LOCAL_PATH)/types.hal
+$(GEN): PRIVATE_OUTPUT_DIR := $(intermediates)
+$(GEN): PRIVATE_CUSTOM_TOOL = \
+        $(PRIVATE_HIDL) -o $(PRIVATE_OUTPUT_DIR) \
+        -Ljava -randroid.hardware:hardware/interfaces \
+        android.hardware.contexthub@1.0::types.PhysicalSensor
+
+$(GEN): $(LOCAL_PATH)/types.hal
+	$(transform-generated-source)
+LOCAL_GENERATED_SOURCES += $(GEN)
+
+#
+# Build types.hal (Result)
+#
+GEN := $(intermediates)/android/hardware/contexthub/1.0/Result.java
+$(GEN): $(HIDL)
+$(GEN): PRIVATE_HIDL := $(HIDL)
+$(GEN): PRIVATE_DEPS := $(LOCAL_PATH)/types.hal
+$(GEN): PRIVATE_OUTPUT_DIR := $(intermediates)
+$(GEN): PRIVATE_CUSTOM_TOOL = \
+        $(PRIVATE_HIDL) -o $(PRIVATE_OUTPUT_DIR) \
+        -Ljava -randroid.hardware:hardware/interfaces \
+        android.hardware.contexthub@1.0::types.Result
+
+$(GEN): $(LOCAL_PATH)/types.hal
+	$(transform-generated-source)
+LOCAL_GENERATED_SOURCES += $(GEN)
+
+#
+# Build types.hal (SensorType)
+#
+GEN := $(intermediates)/android/hardware/contexthub/1.0/SensorType.java
+$(GEN): $(HIDL)
+$(GEN): PRIVATE_HIDL := $(HIDL)
+$(GEN): PRIVATE_DEPS := $(LOCAL_PATH)/types.hal
+$(GEN): PRIVATE_OUTPUT_DIR := $(intermediates)
+$(GEN): PRIVATE_CUSTOM_TOOL = \
+        $(PRIVATE_HIDL) -o $(PRIVATE_OUTPUT_DIR) \
+        -Ljava -randroid.hardware:hardware/interfaces \
+        android.hardware.contexthub@1.0::types.SensorType
+
+$(GEN): $(LOCAL_PATH)/types.hal
+	$(transform-generated-source)
+LOCAL_GENERATED_SOURCES += $(GEN)
+
+#
+# Build types.hal (TransactionResult)
+#
+GEN := $(intermediates)/android/hardware/contexthub/1.0/TransactionResult.java
+$(GEN): $(HIDL)
+$(GEN): PRIVATE_HIDL := $(HIDL)
+$(GEN): PRIVATE_DEPS := $(LOCAL_PATH)/types.hal
+$(GEN): PRIVATE_OUTPUT_DIR := $(intermediates)
+$(GEN): PRIVATE_CUSTOM_TOOL = \
+        $(PRIVATE_HIDL) -o $(PRIVATE_OUTPUT_DIR) \
+        -Ljava -randroid.hardware:hardware/interfaces \
+        android.hardware.contexthub@1.0::types.TransactionResult
+
+$(GEN): $(LOCAL_PATH)/types.hal
+	$(transform-generated-source)
+LOCAL_GENERATED_SOURCES += $(GEN)
+
+#
+# Build IContexthub.hal
+#
+GEN := $(intermediates)/android/hardware/contexthub/1.0/IContexthub.java
+$(GEN): $(HIDL)
+$(GEN): PRIVATE_HIDL := $(HIDL)
+$(GEN): PRIVATE_DEPS := $(LOCAL_PATH)/IContexthub.hal
+$(GEN): PRIVATE_DEPS += $(LOCAL_PATH)/IContexthubCallback.hal
+$(GEN): $(LOCAL_PATH)/IContexthubCallback.hal
+$(GEN): PRIVATE_DEPS += $(LOCAL_PATH)/types.hal
+$(GEN): $(LOCAL_PATH)/types.hal
+$(GEN): PRIVATE_OUTPUT_DIR := $(intermediates)
+$(GEN): PRIVATE_CUSTOM_TOOL = \
+        $(PRIVATE_HIDL) -o $(PRIVATE_OUTPUT_DIR) \
+        -Ljava -randroid.hardware:hardware/interfaces \
+        android.hardware.contexthub@1.0::IContexthub
+
+$(GEN): $(LOCAL_PATH)/IContexthub.hal
+	$(transform-generated-source)
+LOCAL_GENERATED_SOURCES += $(GEN)
+
+#
+# Build IContexthubCallback.hal
+#
+GEN := $(intermediates)/android/hardware/contexthub/1.0/IContexthubCallback.java
+$(GEN): $(HIDL)
+$(GEN): PRIVATE_HIDL := $(HIDL)
+$(GEN): PRIVATE_DEPS := $(LOCAL_PATH)/IContexthubCallback.hal
+$(GEN): PRIVATE_DEPS += $(LOCAL_PATH)/types.hal
+$(GEN): $(LOCAL_PATH)/types.hal
+$(GEN): PRIVATE_OUTPUT_DIR := $(intermediates)
+$(GEN): PRIVATE_CUSTOM_TOOL = \
+        $(PRIVATE_HIDL) -o $(PRIVATE_OUTPUT_DIR) \
+        -Ljava -randroid.hardware:hardware/interfaces \
+        android.hardware.contexthub@1.0::IContexthubCallback
+
+$(GEN): $(LOCAL_PATH)/IContexthubCallback.hal
+	$(transform-generated-source)
+LOCAL_GENERATED_SOURCES += $(GEN)
+include $(BUILD_JAVA_LIBRARY)
+
+
+################################################################################
+
+include $(CLEAR_VARS)
+LOCAL_MODULE := android.hardware.contexthub@1.0-java-static
+LOCAL_MODULE_CLASS := JAVA_LIBRARIES
+
+intermediates := $(local-generated-sources-dir)
+
+HIDL := $(HOST_OUT_EXECUTABLES)/hidl-gen$(HOST_EXECUTABLE_SUFFIX)
+
+#
+# Build types.hal (AsyncEventType)
+#
+GEN := $(intermediates)/android/hardware/contexthub/1.0/AsyncEventType.java
+$(GEN): $(HIDL)
+$(GEN): PRIVATE_HIDL := $(HIDL)
+$(GEN): PRIVATE_DEPS := $(LOCAL_PATH)/types.hal
+$(GEN): PRIVATE_OUTPUT_DIR := $(intermediates)
+$(GEN): PRIVATE_CUSTOM_TOOL = \
+        $(PRIVATE_HIDL) -o $(PRIVATE_OUTPUT_DIR) \
+        -Ljava -randroid.hardware:hardware/interfaces \
+        android.hardware.contexthub@1.0::types.AsyncEventType
+
+$(GEN): $(LOCAL_PATH)/types.hal
+	$(transform-generated-source)
+LOCAL_GENERATED_SOURCES += $(GEN)
+
+#
+# Build types.hal (ContextHub)
+#
+GEN := $(intermediates)/android/hardware/contexthub/1.0/ContextHub.java
+$(GEN): $(HIDL)
+$(GEN): PRIVATE_HIDL := $(HIDL)
+$(GEN): PRIVATE_DEPS := $(LOCAL_PATH)/types.hal
+$(GEN): PRIVATE_OUTPUT_DIR := $(intermediates)
+$(GEN): PRIVATE_CUSTOM_TOOL = \
+        $(PRIVATE_HIDL) -o $(PRIVATE_OUTPUT_DIR) \
+        -Ljava -randroid.hardware:hardware/interfaces \
+        android.hardware.contexthub@1.0::types.ContextHub
+
+$(GEN): $(LOCAL_PATH)/types.hal
+	$(transform-generated-source)
+LOCAL_GENERATED_SOURCES += $(GEN)
+
+#
+# Build types.hal (ContextHubMsg)
+#
+GEN := $(intermediates)/android/hardware/contexthub/1.0/ContextHubMsg.java
+$(GEN): $(HIDL)
+$(GEN): PRIVATE_HIDL := $(HIDL)
+$(GEN): PRIVATE_DEPS := $(LOCAL_PATH)/types.hal
+$(GEN): PRIVATE_OUTPUT_DIR := $(intermediates)
+$(GEN): PRIVATE_CUSTOM_TOOL = \
+        $(PRIVATE_HIDL) -o $(PRIVATE_OUTPUT_DIR) \
+        -Ljava -randroid.hardware:hardware/interfaces \
+        android.hardware.contexthub@1.0::types.ContextHubMsg
+
+$(GEN): $(LOCAL_PATH)/types.hal
+	$(transform-generated-source)
+LOCAL_GENERATED_SOURCES += $(GEN)
+
+#
+# Build types.hal (HubAppInfo)
+#
+GEN := $(intermediates)/android/hardware/contexthub/1.0/HubAppInfo.java
+$(GEN): $(HIDL)
+$(GEN): PRIVATE_HIDL := $(HIDL)
+$(GEN): PRIVATE_DEPS := $(LOCAL_PATH)/types.hal
+$(GEN): PRIVATE_OUTPUT_DIR := $(intermediates)
+$(GEN): PRIVATE_CUSTOM_TOOL = \
+        $(PRIVATE_HIDL) -o $(PRIVATE_OUTPUT_DIR) \
+        -Ljava -randroid.hardware:hardware/interfaces \
+        android.hardware.contexthub@1.0::types.HubAppInfo
+
+$(GEN): $(LOCAL_PATH)/types.hal
+	$(transform-generated-source)
+LOCAL_GENERATED_SOURCES += $(GEN)
+
+#
+# Build types.hal (HubMemoryFlag)
+#
+GEN := $(intermediates)/android/hardware/contexthub/1.0/HubMemoryFlag.java
+$(GEN): $(HIDL)
+$(GEN): PRIVATE_HIDL := $(HIDL)
+$(GEN): PRIVATE_DEPS := $(LOCAL_PATH)/types.hal
+$(GEN): PRIVATE_OUTPUT_DIR := $(intermediates)
+$(GEN): PRIVATE_CUSTOM_TOOL = \
+        $(PRIVATE_HIDL) -o $(PRIVATE_OUTPUT_DIR) \
+        -Ljava -randroid.hardware:hardware/interfaces \
+        android.hardware.contexthub@1.0::types.HubMemoryFlag
+
+$(GEN): $(LOCAL_PATH)/types.hal
+	$(transform-generated-source)
+LOCAL_GENERATED_SOURCES += $(GEN)
+
+#
+# Build types.hal (HubMemoryType)
+#
+GEN := $(intermediates)/android/hardware/contexthub/1.0/HubMemoryType.java
+$(GEN): $(HIDL)
+$(GEN): PRIVATE_HIDL := $(HIDL)
+$(GEN): PRIVATE_DEPS := $(LOCAL_PATH)/types.hal
+$(GEN): PRIVATE_OUTPUT_DIR := $(intermediates)
+$(GEN): PRIVATE_CUSTOM_TOOL = \
+        $(PRIVATE_HIDL) -o $(PRIVATE_OUTPUT_DIR) \
+        -Ljava -randroid.hardware:hardware/interfaces \
+        android.hardware.contexthub@1.0::types.HubMemoryType
+
+$(GEN): $(LOCAL_PATH)/types.hal
+	$(transform-generated-source)
+LOCAL_GENERATED_SOURCES += $(GEN)
+
+#
+# Build types.hal (MemRange)
+#
+GEN := $(intermediates)/android/hardware/contexthub/1.0/MemRange.java
+$(GEN): $(HIDL)
+$(GEN): PRIVATE_HIDL := $(HIDL)
+$(GEN): PRIVATE_DEPS := $(LOCAL_PATH)/types.hal
+$(GEN): PRIVATE_OUTPUT_DIR := $(intermediates)
+$(GEN): PRIVATE_CUSTOM_TOOL = \
+        $(PRIVATE_HIDL) -o $(PRIVATE_OUTPUT_DIR) \
+        -Ljava -randroid.hardware:hardware/interfaces \
+        android.hardware.contexthub@1.0::types.MemRange
+
+$(GEN): $(LOCAL_PATH)/types.hal
+	$(transform-generated-source)
+LOCAL_GENERATED_SOURCES += $(GEN)
+
+#
+# Build types.hal (NanoAppBinary)
+#
+GEN := $(intermediates)/android/hardware/contexthub/1.0/NanoAppBinary.java
+$(GEN): $(HIDL)
+$(GEN): PRIVATE_HIDL := $(HIDL)
+$(GEN): PRIVATE_DEPS := $(LOCAL_PATH)/types.hal
+$(GEN): PRIVATE_OUTPUT_DIR := $(intermediates)
+$(GEN): PRIVATE_CUSTOM_TOOL = \
+        $(PRIVATE_HIDL) -o $(PRIVATE_OUTPUT_DIR) \
+        -Ljava -randroid.hardware:hardware/interfaces \
+        android.hardware.contexthub@1.0::types.NanoAppBinary
+
+$(GEN): $(LOCAL_PATH)/types.hal
+	$(transform-generated-source)
+LOCAL_GENERATED_SOURCES += $(GEN)
+
+#
+# Build types.hal (NanoAppFlags)
+#
+GEN := $(intermediates)/android/hardware/contexthub/1.0/NanoAppFlags.java
+$(GEN): $(HIDL)
+$(GEN): PRIVATE_HIDL := $(HIDL)
+$(GEN): PRIVATE_DEPS := $(LOCAL_PATH)/types.hal
+$(GEN): PRIVATE_OUTPUT_DIR := $(intermediates)
+$(GEN): PRIVATE_CUSTOM_TOOL = \
+        $(PRIVATE_HIDL) -o $(PRIVATE_OUTPUT_DIR) \
+        -Ljava -randroid.hardware:hardware/interfaces \
+        android.hardware.contexthub@1.0::types.NanoAppFlags
+
+$(GEN): $(LOCAL_PATH)/types.hal
+	$(transform-generated-source)
+LOCAL_GENERATED_SOURCES += $(GEN)
+
+#
+# Build types.hal (PhysicalSensor)
+#
+GEN := $(intermediates)/android/hardware/contexthub/1.0/PhysicalSensor.java
+$(GEN): $(HIDL)
+$(GEN): PRIVATE_HIDL := $(HIDL)
+$(GEN): PRIVATE_DEPS := $(LOCAL_PATH)/types.hal
+$(GEN): PRIVATE_OUTPUT_DIR := $(intermediates)
+$(GEN): PRIVATE_CUSTOM_TOOL = \
+        $(PRIVATE_HIDL) -o $(PRIVATE_OUTPUT_DIR) \
+        -Ljava -randroid.hardware:hardware/interfaces \
+        android.hardware.contexthub@1.0::types.PhysicalSensor
+
+$(GEN): $(LOCAL_PATH)/types.hal
+	$(transform-generated-source)
+LOCAL_GENERATED_SOURCES += $(GEN)
+
+#
+# Build types.hal (Result)
+#
+GEN := $(intermediates)/android/hardware/contexthub/1.0/Result.java
+$(GEN): $(HIDL)
+$(GEN): PRIVATE_HIDL := $(HIDL)
+$(GEN): PRIVATE_DEPS := $(LOCAL_PATH)/types.hal
+$(GEN): PRIVATE_OUTPUT_DIR := $(intermediates)
+$(GEN): PRIVATE_CUSTOM_TOOL = \
+        $(PRIVATE_HIDL) -o $(PRIVATE_OUTPUT_DIR) \
+        -Ljava -randroid.hardware:hardware/interfaces \
+        android.hardware.contexthub@1.0::types.Result
+
+$(GEN): $(LOCAL_PATH)/types.hal
+	$(transform-generated-source)
+LOCAL_GENERATED_SOURCES += $(GEN)
+
+#
+# Build types.hal (SensorType)
+#
+GEN := $(intermediates)/android/hardware/contexthub/1.0/SensorType.java
+$(GEN): $(HIDL)
+$(GEN): PRIVATE_HIDL := $(HIDL)
+$(GEN): PRIVATE_DEPS := $(LOCAL_PATH)/types.hal
+$(GEN): PRIVATE_OUTPUT_DIR := $(intermediates)
+$(GEN): PRIVATE_CUSTOM_TOOL = \
+        $(PRIVATE_HIDL) -o $(PRIVATE_OUTPUT_DIR) \
+        -Ljava -randroid.hardware:hardware/interfaces \
+        android.hardware.contexthub@1.0::types.SensorType
+
+$(GEN): $(LOCAL_PATH)/types.hal
+	$(transform-generated-source)
+LOCAL_GENERATED_SOURCES += $(GEN)
+
+#
+# Build types.hal (TransactionResult)
+#
+GEN := $(intermediates)/android/hardware/contexthub/1.0/TransactionResult.java
+$(GEN): $(HIDL)
+$(GEN): PRIVATE_HIDL := $(HIDL)
+$(GEN): PRIVATE_DEPS := $(LOCAL_PATH)/types.hal
+$(GEN): PRIVATE_OUTPUT_DIR := $(intermediates)
+$(GEN): PRIVATE_CUSTOM_TOOL = \
+        $(PRIVATE_HIDL) -o $(PRIVATE_OUTPUT_DIR) \
+        -Ljava -randroid.hardware:hardware/interfaces \
+        android.hardware.contexthub@1.0::types.TransactionResult
+
+$(GEN): $(LOCAL_PATH)/types.hal
+	$(transform-generated-source)
+LOCAL_GENERATED_SOURCES += $(GEN)
+
+#
+# Build IContexthub.hal
+#
+GEN := $(intermediates)/android/hardware/contexthub/1.0/IContexthub.java
+$(GEN): $(HIDL)
+$(GEN): PRIVATE_HIDL := $(HIDL)
+$(GEN): PRIVATE_DEPS := $(LOCAL_PATH)/IContexthub.hal
+$(GEN): PRIVATE_DEPS += $(LOCAL_PATH)/IContexthubCallback.hal
+$(GEN): $(LOCAL_PATH)/IContexthubCallback.hal
+$(GEN): PRIVATE_DEPS += $(LOCAL_PATH)/types.hal
+$(GEN): $(LOCAL_PATH)/types.hal
+$(GEN): PRIVATE_OUTPUT_DIR := $(intermediates)
+$(GEN): PRIVATE_CUSTOM_TOOL = \
+        $(PRIVATE_HIDL) -o $(PRIVATE_OUTPUT_DIR) \
+        -Ljava -randroid.hardware:hardware/interfaces \
+        android.hardware.contexthub@1.0::IContexthub
+
+$(GEN): $(LOCAL_PATH)/IContexthub.hal
+	$(transform-generated-source)
+LOCAL_GENERATED_SOURCES += $(GEN)
+
+#
+# Build IContexthubCallback.hal
+#
+GEN := $(intermediates)/android/hardware/contexthub/1.0/IContexthubCallback.java
+$(GEN): $(HIDL)
+$(GEN): PRIVATE_HIDL := $(HIDL)
+$(GEN): PRIVATE_DEPS := $(LOCAL_PATH)/IContexthubCallback.hal
+$(GEN): PRIVATE_DEPS += $(LOCAL_PATH)/types.hal
+$(GEN): $(LOCAL_PATH)/types.hal
+$(GEN): PRIVATE_OUTPUT_DIR := $(intermediates)
+$(GEN): PRIVATE_CUSTOM_TOOL = \
+        $(PRIVATE_HIDL) -o $(PRIVATE_OUTPUT_DIR) \
+        -Ljava -randroid.hardware:hardware/interfaces \
+        android.hardware.contexthub@1.0::IContexthubCallback
+
+$(GEN): $(LOCAL_PATH)/IContexthubCallback.hal
+	$(transform-generated-source)
+LOCAL_GENERATED_SOURCES += $(GEN)
+include $(BUILD_STATIC_JAVA_LIBRARY)
+
+
+
+include $(call all-makefiles-under,$(LOCAL_PATH))
diff --git a/contexthub/1.0/IContexthub.hal b/contexthub/1.0/IContexthub.hal
new file mode 100644
index 0000000..8d19aeb
--- /dev/null
+++ b/contexthub/1.0/IContexthub.hal
@@ -0,0 +1,157 @@
+/*
+ * Copyright (C) 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package android.hardware.contexthub@1.0;
+
+import IContexthubCallback;
+
+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
+     * callback has already been registered must override the previous
+     * registration.
+     *
+     * @param hubId    identifier for the hub
+     *        callback an implementation of the IContextHubCallbacks
+     *
+     * @return result OK on success
+     *                BAD_VALUE if parameters are not sane
+     *
+     */
+     registerCallback(uint32_t hubId, IContexthubCallback cb) generates (Result result);
+
+    /**
+     * Send a message to a hub
+     *
+     * @param hubId identifier for hub to send message to
+     *        msg   message to be sent
+     *
+     * @return result OK if successful, error code otherwise
+     *                BAD_VALUE if parameters are not sane
+     *                TRANSACTION_FAILED if message send failed
+     */
+    sendMessageToHub(uint32_t hubId, ContextHubMsg msg)
+            generates (Result result);
+
+    /**
+     * Loads a nanoApp. After loading, the nanoApp's init method must be called.
+     * After the init method for nanoApp returns success, this must be indicated
+     * to the service by an asynchronous call to handleTxnResult.
+     *
+     * @param hubId identifer of the contextHub
+     *        appBinary binary for the nanoApp
+     *        msg   message to be sent
+     *
+     * @return result OK if transation started
+     *                BAD_VALUE if parameters are not sane
+     *                TRANSACTION_PENDING if hub is busy with another
+     *                                    load/unload transaction
+     *                TRANSACTION_FAILED if load failed synchronously
+     *
+     */
+    loadNanoApp(uint32_t hubId, NanoAppBinary appBinary, uint32_t transactionId)
+            generates (Result result);
+
+    /**
+     * Unloads a nanoApp. Before the unload, the apps deinit method is called.
+     * After this, success must be indicated to the service through an
+     * asynchronous call to handleTxnResult.
+     *
+     * @param hubId identifer of the contextHub
+     *        appId appIdentifier returned by the HAL
+     *        msg   message to be sent
+     *
+     * @return result OK if transation started
+     *                BAD_VALUE if parameters are not sane
+     *                TRANSACTION_PENDING if hub is busy with another
+     *                                    load/unload transaction
+     *                TRANSACTION_FAILED if unload failed synchronously
+     *
+     */
+    unloadNanoApp(uint32_t hubId, uint64_t appId, uint32_t transactionId)
+            generates (Result result);
+
+    /**
+     * Enables a nanoApp. The app's init method is called.
+     * After this, success must be indicated to the service through an
+     * asynchronous message.
+     *
+     * @param hubId identifer of the contextHub
+     *        appId appIdentifier returned by the HAL
+     *        msg   message to be sent
+     *
+     * @return result OK if transation started
+     *                BAD_VALUE if parameters are not sane
+     *                TRANSACTION_PENDING if hub is busy with another
+     *                                    load/unload transaction
+     *                FAILED_TRANSACTION if load fails immediately
+     *
+     */
+    enableNanoApp(uint32_t hubId, uint64_t appId, uint32_t transactionId)
+            generates (Result result);
+
+    /**
+     * Disables a nanoApp. The app's deinit method is called.
+     * After this, success must be indicated to the service through an
+     * asynchronous message.
+     *
+     * @param hubId identifer of the contextHub
+     *        appId appIdentifier returned by the HAL
+     *        msg   message to be sent
+     *
+     * @return result OK if transation started
+     *                BAD_VALUE if parameters are not sane
+     *                TRANSACTION_PENDING if hub is busy with another
+     *                                    load/unload transaction
+     *                FAILED_TRANSACTION if load fails immediately
+     *
+     */
+    disableNanoApp(uint32_t hubId, uint64_t appId, uint32_t transactionId)
+            generates (Result result);
+
+    /**
+     * Queries for Loaded apps on the hub
+     *
+     * @param hubId identifer of the contextHub
+     *
+     * @return apps all nanoApps on the hub
+     *
+     */
+    queryApps(uint32_t hubId) generates (Result result);
+
+    /**
+     * Reboots context hub OS, restarts all the nanoApps.
+     * No reboot notification is sent to nanoApps; reboot happens immediately
+     * and unconditionally; all volatile contexthub state and any data is lost
+     * as a result.
+     *
+     * @param hubId identifer of the contextHub
+     *
+     * @return result OK on success
+     *                BAD_VALUE if parameters are not sane
+     *
+     */
+    reboot(uint32_t hubId) generates (Result result);
+};
diff --git a/contexthub/1.0/IContexthubCallback.hal b/contexthub/1.0/IContexthubCallback.hal
new file mode 100644
index 0000000..29c41ce
--- /dev/null
+++ b/contexthub/1.0/IContexthubCallback.hal
@@ -0,0 +1,62 @@
+/*
+ * Copyright (C) 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+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.
+     *
+     * @params hubId : identifier of the hub calling callback
+     *         msg   : message
+     *
+     */
+     handleClientMsg(uint32_t hubId, 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.
+     *
+     * @params hubId : identifier of the hub calling callback
+     *         txnId : transaction id whose result is being sent
+     *                 passed in by the service at start of transacation.
+     *         result: result of transaction.
+     *
+     */
+     handleTxnResult(uint32_t hubId, 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.
+     *
+     * @params hubId : identifier of the hub calling callback
+     *         msg   : message
+     *
+     */
+     handleHubEvent(uint32_t hubId, AsyncEventType evt);
+
+     /*
+      * 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.
+      */
+      handleAppsInfo(uint32_t hubId, vec<HubAppInfo> appInfo);
+};
diff --git a/contexthub/1.0/types.hal b/contexthub/1.0/types.hal
new file mode 100644
index 0000000..7d5a1ac
--- /dev/null
+++ b/contexthub/1.0/types.hal
@@ -0,0 +1,151 @@
+/*
+ * Copyright (C) 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package android.hardware.contexthub@1.0;
+
+enum Result : uint32_t {
+    OK,                  // Success
+    BAD_PARAMS,          // Parameters not sane
+    NOT_INIT,            // not initialized
+    TRANSACTION_FAILED,  // transaction failed
+    TRANSACTION_PENDING, // Pending transaction, cannot accept a new request
+};
+
+
+enum NanoAppFlags : uint32_t {
+    SIGNED = (1<<0),   // Signed nanoapp
+    ENCRYPTED = (1<<1),// Encrypted nanoapp
+};
+
+struct NanoAppBinary {
+    uint32_t headerVersion;    // 0x1 for this version
+    uint32_t magic;            // "NANO"
+    uint64_t appId;            // App Id contains vendor id
+    uint32_t appVersion;       // Version of the app
+    uint32_t flags;            // mask of NanoAppFlags
+    uint64_t hwHubType;        // which hub type is this compiled for
+                               // a unique UUID for each h/w + toolchain
+                               // combination.
+    vec<uint8_t> customBinary; // start of custom binary data
+};
+
+enum SensorType : uint32_t {
+    RESERVED,
+    ACCELEROMETER,
+    GYROSCOPE,
+    MAGNETOMETER,
+    BAROMETER,
+    PROXIMITY_SENSOR,
+    AMBIENT_LIGHT_SENSOR,
+
+    GPS = 0x100,
+    // Reserving this space for variants on GPS
+
+    WIFI = 0x200,
+    // Reserving this space for variants on WIFI
+
+    AUDIO = 0x300,
+    // Reserving this space for variants on Audio
+
+    CAMERA = 0x400,
+    // Reserving this space for variants on Camera
+
+    BLE = 0x500,
+
+    PRIVATE_SENSOR_BASE = 0x10000,
+    // Sensor types beyond PRIVATE_SENSOR_BASE are custom types
+};
+
+struct PhysicalSensor{
+    SensorType sensorType;       // From the definitions above eg: 100
+    string type;                 // Type as a string. eg: "GPS"
+    string name;                 // Identifier eg: "Bosch BMI160"
+    string vendor;               // Vendor : eg "STM"
+    uint32_t version;            // Version : eg 0x1001
+    uint32_t fifoReservedCount;  // Batching possible in hardware. Please
+                                 // note that here hardware does not include
+                                 // the context hub itself. Thus, this
+                                 // definition may be different from say the
+                                 // number advertised in the sensors HAL
+                                 // which allows for batching in a hub.
+    uint32_t fifoMaxCount;       // maximum number of batchable events.
+    uint64_t minDelayMs;         // in milliseconds, corresponding to highest
+                                 // sampling freq.
+    uint64_t maxDelayMs;         // in milliseconds, corresponds to minimum
+                                 // sampling frequency
+    float peakPowerMw;           // At max frequency & no batching, power
+                                 // in milliwatts
+};
+
+struct ContextHub {
+    string name;                // descriptive name eg: "Awesome Hub #1"
+    string vendor;              // hub hardware vendor eg: "Qualcomm"
+    string toolchain;           // toolchain to make binaries eg: "gcc ARM"
+    uint32_t platformVersion;   // Version of the hardware : eg 0x20
+    uint32_t toolchainVersion;  // Version of the toolchain : eg: 0x484
+    uint32_t hubId;             // a device unique id for this hub
+
+    float peakMips;             // Peak MIPS platform can deliver
+    float stoppedPowerDrawMw;   // if stopped, retention power, milliwatts
+    float sleepPowerDrawMw;     // if sleeping, retention power, milliwatts
+    float peakPowerDrawMw;      // for a busy CPUm power in milliwatts
+
+    vec<PhysicalSensor> connectedSensors; // array of connected sensors
+
+    uint32_t maxSupportedMsgLen;// This is the maximum size of the message that can
+                                // be sent to the hub in one chunk (in bytes)
+};
+
+struct ContextHubMsg {
+    uint64_t appName; // intended recipient
+    uint32_t msgType; // identifier for message
+    vec<uint8_t> msg; // message body
+};
+
+enum HubMemoryType : uint32_t {
+    MAIN      = 0, // Main memory
+    SECONDARY = 1, // Secondary memory
+    TCM       = 2, // Tightly coupled memory
+};
+
+enum HubMemoryFlag : uint32_t {
+    READ  = (1<<0), // Readable
+    WRITE = (1<<1), // Writable
+    EXEC  = (1<<2), // Executable
+};
+
+struct MemRange {
+    uint32_t totalBytes; // total capacity in bytes
+    uint32_t freeBytes;  // free capacity in bytes
+    HubMemoryType type;  // type of memory, see HubMemoryType
+    uint32_t flags;      // mask of HubMemoryFlag
+};
+
+enum AsyncEventType : uint32_t {
+    RESTARTED = 1, // Hub restarted unexpectedly
+};
+
+enum TransactionResult {
+    SUCCESS,      // successful completion of transaction
+    FAILURE,      // failed transaction
+};
+
+struct HubAppInfo {
+    uint64_t appId;         // Identifier of the app
+    uint32_t version;       // version of the app
+    vec<MemRange> memUsage; // Memory used by this app
+};
+
diff --git a/contexthub/Android.bp b/contexthub/Android.bp
new file mode 100644
index 0000000..bbb3e4b
--- /dev/null
+++ b/contexthub/Android.bp
@@ -0,0 +1,4 @@
+// This is an autogenerated file, do not edit.
+subdirs = [
+    "1.0",
+]
diff --git a/memtrack/1.0/vts/Android.mk b/memtrack/1.0/vts/Android.mk
new file mode 100644
index 0000000..c0fe968
--- /dev/null
+++ b/memtrack/1.0/vts/Android.mk
@@ -0,0 +1,87 @@
+#
+# Copyright (C) 2016 The Android Open Source Project
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#       http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+
+LOCAL_PATH := $(call my-dir)
+
+# build VTS driver for memtrack v1.0.
+include $(CLEAR_VARS)
+
+LOCAL_MODULE := libvts_driver_hidl_memtrack@1.0
+
+LOCAL_SRC_FILES := \
+  Memtrack.vts \
+  types.vts \
+
+LOCAL_C_INCLUDES := \
+  android.hardware.memtrack@1.0 \
+  system/core/base/include \
+  system/core/include \
+
+LOCAL_SHARED_LIBRARIES += \
+  android.hardware.memtrack@1.0 \
+  libbase \
+  libutils \
+  libcutils \
+  liblog \
+  libhidl \
+  libhwbinder \
+  libprotobuf-cpp-full \
+  libvts_common \
+  libvts_datatype \
+  libvts_measurement \
+  libvts_multidevice_proto \
+
+LOCAL_CFLAGS += -DENABLE_TREBLE
+
+LOCAL_STATIC_LIBRARIES := \
+
+LOCAL_PROTOC_OPTIMIZE_TYPE := full
+
+LOCAL_MULTILIB := both
+
+include $(BUILD_SHARED_LIBRARY)
+
+# build profiler for memtrack.
+include $(CLEAR_VARS)
+
+LOCAL_MODULE := libvts_profiler_hidl_memtrack@1.0
+
+LOCAL_SRC_FILES := \
+  Memtrack.vts \
+  types.vts \
+
+LOCAL_C_INCLUDES += \
+  test/vts/drivers/libprofiling \
+
+LOCAL_VTS_MODE := PROFILER
+
+LOCAL_SHARED_LIBRARIES := \
+   android.hardware.memtrack@1.0 \
+   libbase \
+   libcutils \
+   liblog \
+   libhidl \
+   libhwbinder \
+   libprotobuf-cpp-full \
+   libvts_common \
+   libvts_multidevice_proto \
+   libvts_profiling \
+   libutils \
+
+LOCAL_PROTOC_OPTIMIZE_TYPE := full
+
+include $(BUILD_SHARED_LIBRARY)
+
diff --git a/memtrack/1.0/vts/Memtrack.vts b/memtrack/1.0/vts/Memtrack.vts
new file mode 100644
index 0000000..9fce2a0
--- /dev/null
+++ b/memtrack/1.0/vts/Memtrack.vts
@@ -0,0 +1,33 @@
+component_class: HAL_HIDL
+component_type_version: 1.0
+component_name: "IMemtrack"
+
+package: "android.hardware.memtrack"
+
+import: "android.hardware.memtrack@1.0::types"
+
+interface: {
+    api: {
+        name: "getMemory"
+        return_type_hidl: {
+            type: TYPE_ENUM
+            predefined_type: "::android::hardware::memtrack::V1_0::MemtrackStatus"
+        }
+        return_type_hidl: {
+            type: TYPE_VECTOR
+            vector_value: {
+                type: TYPE_STRUCT
+                predefined_type: "::android::hardware::memtrack::V1_0::MemtrackRecord"
+            }
+        }
+        arg: {
+            type: TYPE_SCALAR
+            scalar_type: "int32_t"
+        }
+        arg: {
+            type: TYPE_ENUM
+            predefined_type: "::android::hardware::memtrack::V1_0::MemtrackType"
+        }
+    }
+
+}
diff --git a/memtrack/1.0/vts/types.vts b/memtrack/1.0/vts/types.vts
new file mode 100644
index 0000000..bec090f
--- /dev/null
+++ b/memtrack/1.0/vts/types.vts
@@ -0,0 +1,121 @@
+component_class: HAL_HIDL
+component_type_version: 1.0
+component_name: "types"
+
+package: "android.hardware.memtrack"
+
+
+attribute: {
+    name: "::android::hardware::memtrack::V1_0::MemtrackFlag"
+    type: TYPE_ENUM
+    enum_value: {
+        scalar_type: "uint32_t"
+
+        enumerator: "SMAPS_ACCOUNTED"
+        scalar_value: {
+            uint32_t: 2
+        }
+        enumerator: "SMAPS_UNACCOUNTED"
+        scalar_value: {
+            uint32_t: 4
+        }
+        enumerator: "SHARED"
+        scalar_value: {
+            uint32_t: 8
+        }
+        enumerator: "SHARED_PSS"
+        scalar_value: {
+            uint32_t: 16
+        }
+        enumerator: "PRIVATE"
+        scalar_value: {
+            uint32_t: 32
+        }
+        enumerator: "SYSTEM"
+        scalar_value: {
+            uint32_t: 64
+        }
+        enumerator: "DEDICATED"
+        scalar_value: {
+            uint32_t: 128
+        }
+        enumerator: "NONSECURE"
+        scalar_value: {
+            uint32_t: 256
+        }
+        enumerator: "SECURE"
+        scalar_value: {
+            uint32_t: 512
+        }
+    }
+}
+
+attribute: {
+    name: "::android::hardware::memtrack::V1_0::MemtrackType"
+    type: TYPE_ENUM
+    enum_value: {
+        scalar_type: "uint32_t"
+
+        enumerator: "OTHER"
+        scalar_value: {
+            uint32_t: 0
+        }
+        enumerator: "GL"
+        scalar_value: {
+            uint32_t: 1
+        }
+        enumerator: "GRAPHICS"
+        scalar_value: {
+            uint32_t: 2
+        }
+        enumerator: "MULTIMEDIA"
+        scalar_value: {
+            uint32_t: 3
+        }
+        enumerator: "CAMERA"
+        scalar_value: {
+            uint32_t: 4
+        }
+        enumerator: "NUM_TYPES"
+        scalar_value: {
+            uint32_t: 5
+        }
+    }
+}
+
+attribute: {
+    name: "::android::hardware::memtrack::V1_0::MemtrackStatus"
+    type: TYPE_ENUM
+    enum_value: {
+        scalar_type: "uint32_t"
+
+        enumerator: "SUCCESS"
+        scalar_value: {
+            uint32_t: 0
+        }
+        enumerator: "MEMORY_TRACKING_NOT_SUPPORTED"
+        scalar_value: {
+            uint32_t: 1
+        }
+        enumerator: "TYPE_NOT_SUPPORTED"
+        scalar_value: {
+            uint32_t: 2
+        }
+    }
+}
+
+attribute: {
+    name: "::android::hardware::memtrack::V1_0::MemtrackRecord"
+    type: TYPE_STRUCT
+    struct_value: {
+        name: "sizeInBytes"
+        type: TYPE_SCALAR
+        scalar_type: "uint64_t"
+    }
+    struct_value: {
+        name: "flags"
+        type: TYPE_SCALAR
+        scalar_type: "uint32_t"
+    }
+}
+
diff --git a/vehicle/2.0/default/vehicle_hal_manager/SubscriptionManager.cpp b/vehicle/2.0/default/vehicle_hal_manager/SubscriptionManager.cpp
index 0d2180f..910413e 100644
--- a/vehicle/2.0/default/vehicle_hal_manager/SubscriptionManager.cpp
+++ b/vehicle/2.0/default/vehicle_hal_manager/SubscriptionManager.cpp
@@ -40,7 +40,7 @@
     }
 
     float updatedRate = std::max(oldOpts.sampleRate, newOpts.sampleRate);
-    SubscribeFlags updatedFlags = oldOpts.flags | newOpts.flags;
+    SubscribeFlags updatedFlags = SubscribeFlags(oldOpts.flags | newOpts.flags);
 
     bool updated = updatedRate > oldOpts.sampleRate
                    || updatedAreas != oldOpts.vehicleAreas