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diff --git a/include/camera/ICameraServiceListener.h b/include/camera/ICameraServiceListener.h
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+++ b/include/camera/ICameraServiceListener.h
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+/*
+ * Copyright (C) 2013 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.
+ */
+
+#ifndef ANDROID_HARDWARE_ICAMERASERVICE_LISTENER_H
+#define ANDROID_HARDWARE_ICAMERASERVICE_LISTENER_H
+
+#include <utils/RefBase.h>
+#include <binder/IInterface.h>
+#include <binder/Parcel.h>
+#include <hardware/camera_common.h>
+
+namespace android {
+
+class ICameraServiceListener : public IInterface
+{
+    /**
+     * Keep up-to-date with ICameraServiceListener.aidl in frameworks/base
+     */
+public:
+
+    /**
+     * Initial status will be transmitted with onStatusChange immediately
+     * after this listener is added to the service listener list.
+     *
+     * Allowed transitions:
+     *
+     *     (Any)               -> NOT_PRESENT
+     *     NOT_PRESENT         -> PRESENT
+     *     NOT_PRESENT         -> ENUMERATING
+     *     ENUMERATING         -> PRESENT
+     *     PRESENT             -> NOT_AVAILABLE
+     *     NOT_AVAILABLE       -> PRESENT
+     *
+     * A state will never immediately transition back to itself.
+     */
+    enum Status {
+        // Device physically unplugged
+        STATUS_NOT_PRESENT      = CAMERA_DEVICE_STATUS_NOT_PRESENT,
+        // Device physically has been plugged in
+        //  and the camera can be used exlusively
+        STATUS_PRESENT          = CAMERA_DEVICE_STATUS_PRESENT,
+        // Device physically has been plugged in
+        //   but it will not be connect-able until enumeration is complete
+        STATUS_ENUMERATING      = CAMERA_DEVICE_STATUS_ENUMERATING,
+
+        // Camera can be used exclusively
+        STATUS_AVAILABLE        = STATUS_PRESENT, // deprecated, will be removed
+
+        // Camera is in use by another app and cannot be used exclusively
+        STATUS_NOT_AVAILABLE    = 0x80000000,
+
+        // Use to initialize variables only
+        STATUS_UNKNOWN          = 0xFFFFFFFF,
+    };
+
+    DECLARE_META_INTERFACE(CameraServiceListener);
+
+    virtual void onStatusChanged(Status status, int32_t cameraId) = 0;
+};
+
+// ----------------------------------------------------------------------------
+
+class BnCameraServiceListener : public BnInterface<ICameraServiceListener>
+{
+public:
+    virtual status_t    onTransact( uint32_t code,
+                                    const Parcel& data,
+                                    Parcel* reply,
+                                    uint32_t flags = 0);
+};
+
+}; // namespace android
+
+#endif