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diff --git a/camera/QCamera2/QCamera2Factory.h b/camera/QCamera2/QCamera2Factory.h
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+/* Copyright (c) 2012-2016, The Linux Foundation. All rights reserved.
+*
+* Redistribution and use in source and binary forms, with or without
+* modification, are permitted provided that the following conditions are
+* met:
+*     * Redistributions of source code must retain the above copyright
+*       notice, this list of conditions and the following disclaimer.
+*     * Redistributions in binary form must reproduce the above
+*       copyright notice, this list of conditions and the following
+*       disclaimer in the documentation and/or other materials provided
+*       with the distribution.
+*     * Neither the name of The Linux Foundation nor the names of its
+*       contributors may be used to endorse or promote products derived
+*       from this software without specific prior written permission.
+*
+* THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESS OR IMPLIED
+* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT
+* ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS
+* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
+* BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
+* OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN
+* IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+*
+*/
+
+#ifndef __QCAMERA2FACTORY_H__
+#define __QCAMERA2FACTORY_H__
+
+// Camera dependencies
+#include "camera_common.h"
+
+namespace qcamera {
+
+typedef struct {
+    uint32_t cameraId;
+    uint32_t device_version;
+} hal_desc;
+
+class QCamera2Factory
+{
+public:
+    QCamera2Factory();
+    virtual ~QCamera2Factory();
+
+    static int get_number_of_cameras();
+    static int get_camera_info(int camera_id, struct camera_info *info);
+    static int set_callbacks(const camera_module_callbacks_t *callbacks);
+    static int open_legacy(const struct hw_module_t* module,
+            const char* id, uint32_t halVersion, struct hw_device_t** device);
+    static int set_torch_mode(const char* camera_id, bool on);
+    bool isDualCamAvailable(int hal3Enabled);
+
+private:
+    int getNumberOfCameras();
+    int getCameraInfo(int camera_id, struct camera_info *info);
+    int setCallbacks(const camera_module_callbacks_t *callbacks);
+    int cameraDeviceOpen(int camera_id, struct hw_device_t **hw_device);
+    static int camera_device_open(const struct hw_module_t *module, const char *id,
+                struct hw_device_t **hw_device);
+    static int openLegacy(
+            int32_t cameraId, uint32_t halVersion, struct hw_device_t** hw_device);
+    int setTorchMode(const char* camera_id, bool on);
+public:
+    static struct hw_module_methods_t mModuleMethods;
+
+private:
+    int mNumOfCameras;
+    hal_desc *mHalDescriptors;
+    const camera_module_callbacks_t *mCallbacks;
+};
+
+}; /*namespace qcamera*/
+
+extern camera_module_t HAL_MODULE_INFO_SYM;
+
+#endif /* __QCAMERA2FACTORY_H__ */