diff --git a/bluetooth/1.0/IBluetoothHciCallbacks.hal b/bluetooth/1.0/IBluetoothHciCallbacks.hal
new file mode 100644
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+++ b/bluetooth/1.0/IBluetoothHciCallbacks.hal
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+/*
+ * 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.bluetooth@1.0;
+
+/* The interface from the Bluetooth Controller to the stack. */
+interface IBluetoothHciCallbacks {
+    /**
+     * This function is invoked when an HCI event is received from the
+     * Bluetooth controller to be forwarded to the Bluetooth stack.
+     * @param event is the HCI event to be sent to the Bluetooth stack.
+     */
+    oneway hciEventReceived(HciPacket event);
+
+    /**
+     * Send an ACL data packet form the controller to the host.
+     * @param data the ACL HCI packet to be passed to the host stack
+     */
+    oneway aclDataReceived(HciPacket data);
+
+    /**
+     * Send a SCO data packet form the controller to the host.
+     * @param data the SCO HCI packet to be passed to the host stack
+     */
+    oneway scoDataReceived(HciPacket data);
+};