diff --git a/include/ui/CameraParameters.h b/include/ui/CameraParameters.h
index 9ca1806..9c3d4f0 100644
--- a/include/ui/CameraParameters.h
+++ b/include/ui/CameraParameters.h
@@ -69,11 +69,203 @@
     void dump() const;
     status_t dump(int fd, const Vector<String16>& args) const;
 
+    // Parameter keys to communicate between camera application and driver.
+    // The access (read/write, read only, or write only) is viewed from the
+    // perspective of applications, not driver.
+
+    // Preview frame size in pixels (width x height).
+    // Example value: "480x320". Read/Write.
+    static const char KEY_PREVIEW_SIZE[];
+    // Supported preview frame sizes in pixels.
+    // Example value: "800x600,480x320". Read only.
+    static const char KEY_SUPPORTED_PREVIEW_SIZES[];
+    // The image format for preview frames.
+    // Example value: "yuv420sp" or PIXEL_FORMAT_XXX constants. Read/write.
+    static const char KEY_PREVIEW_FORMAT[];
+    // Supported image formats for preview frames.
+    // Example value: "yuv420sp,yuv422i-yuyv". Read only.
+    static const char KEY_SUPPORTED_PREVIEW_FORMATS[];
+    // Number of preview frames per second.
+    // Example value: "15". Read/write.
+    static const char KEY_PREVIEW_FRAME_RATE[];
+    // Supported number of preview frames per second.
+    // Example value: "24,15,10". Read.
+    static const char KEY_SUPPORTED_PREVIEW_FRAME_RATES[];
+    // The dimensions for captured pictures in pixels (width x height).
+    // Example value: "1024x768". Read/write.
+    static const char KEY_PICTURE_SIZE[];
+    // Supported dimensions for captured pictures in pixels.
+    // Example value: "2048x1536,1024x768". Read only.
+    static const char KEY_SUPPORTED_PICTURE_SIZES[];
+    // The image format for captured pictures.
+    // Example value: "jpeg" or PIXEL_FORMAT_XXX constants. Read/write.
+    static const char KEY_PICTURE_FORMAT[];
+    // Supported image formats for captured pictures.
+    // Example value: "jpeg,rgb565". Read only.
+    static const char KEY_SUPPORTED_PICTURE_FORMATS[];
+    // The width (in pixels) of EXIF thumbnail in Jpeg picture.
+    // Example value: "512". Read/write.
+    static const char KEY_JPEG_THUMBNAIL_WIDTH[];
+    // The height (in pixels) of EXIF thumbnail in Jpeg picture.
+    // Example value: "384". Read/write.
+    static const char KEY_JPEG_THUMBNAIL_HEIGHT[];
+    // Supported EXIF thumbnail sizes (width x height).
+    // Example value: "512x384,320x240". Read only.
+    static const char KEY_SUPPORTED_THUMBNAIL_SIZES[];
+    // The quality of the EXIF thumbnail in Jpeg picture. The range is 1 to 100,
+    // with 100 being the best.
+    // Example value: "90". Read/write.
+    static const char KEY_JPEG_THUMBNAIL_QUALITY[];
+    // Jpeg quality of captured picture. The range is 1 to 100, with 100 being
+    // the best.
+    // Example value: "90". Read/write.
+    static const char KEY_JPEG_QUALITY[];
+    // The orientation of the device in degrees. For example, suppose the
+    // natural position of the device is landscape. If the user takes a picture
+    // in landscape mode in 2048x1536 resolution, the rotation will be set to
+    // "0". If the user rotates the phone 90 degrees clockwise, the rotation
+    // should be set to "90".
+    // The camera driver can set orientation in the EXIF header without rotating
+    // the picture. Or the driver can rotate the picture and the EXIF thumbnail.
+    // If the Jpeg picture is rotated, the orientation in the EXIF header should
+    // be missing or 1 (row #0 is top and column #0 is left side). The driver
+    // should not set default value for this parameter.
+    // Example value: "0" or "90" or "180" or "270". Write only.
+    static const char KEY_ROTATION[];
+    // GPS latitude coordinate. This will be stored in JPEG EXIF header.
+    // Example value: "25.032146". Write only.
+    static const char KEY_GPS_LATITUDE[];
+    // GPS longitude coordinate. This will be stored in JPEG EXIF header.
+    // Example value: "121.564448". Write only.
+    static const char KEY_GPS_LONGITUDE[];
+    // GPS altitude. This will be stored in JPEG EXIF header.
+    // Example value: "21.0". Write only.
+    static const char KEY_GPS_ALTITUDE[];
+    // GPS timestamp (UTC in seconds since January 1, 1970). This should be
+    // stored in JPEG EXIF header.
+    // Example value: "1251192757". Write only.
+    static const char KEY_GPS_TIMESTAMP[];
+    // Current white balance setting.
+    // Example value: "auto" or WHITE_BALANCE_XXX constants. Read/write.
+    static const char KEY_WHITE_BALANCE[];
+    // Supported white balance settings.
+    // Example value: "auto,incandescent,daylight". Read only.
+    static const char KEY_SUPPORTED_WHITE_BALANCE[];
+    // Current color effect setting.
+    // Example value: "none" or EFFECT_XXX constants. Read/write.
+    static const char KEY_EFFECT[];
+    // Supported color effect settings.
+    // Example value: "none,mono,sepia". Read only.
+    static const char KEY_SUPPORTED_EFFECTS[];
+    // Current antibanding setting.
+    // Example value: "auto" or ANTIBANDING_XXX constants. Read/write.
+    static const char KEY_ANTIBANDING[];
+    // Supported antibanding settings.
+    // Example value: "auto,50hz,60hz,off". Read only.
+    static const char KEY_SUPPORTED_ANTIBANDING[];
+    // Current scene mode.
+    // Example value: "auto" or SCENE_MODE_XXX constants. Read/write.
+    static const char KEY_SCENE_MODE[];
+    // Supported scene mode settings.
+    // Example value: "auto,night,fireworks". Read only.
+    static const char KEY_SUPPORTED_SCENE_MODES[];
+    // Current flash mode.
+    // Example value: "auto" or FLASH_MODE_XXX constants. Read/write.
+    static const char KEY_FLASH_MODE[];
+    // Supported flash modes.
+    // Example value: "auto,on,off". Read only.
+    static const char KEY_SUPPORTED_FLASH_MODES[];
+    // Current focus mode. If the camera does not support auto-focus, the value
+    // should be FOCUS_MODE_FIXED. If the focus mode is not FOCUS_MODE_FIXED or
+    // or FOCUS_MODE_INFINITY, applications should call
+    // CameraHardwareInterface.autoFocus to start the focus.
+    // Example value: "auto" or FOCUS_MODE_XXX constants. Read/write.
+    static const char KEY_FOCUS_MODE[];
+    // Supported focus modes.
+    // Example value: "auto,macro,fixed". Read only.
+    static const char KEY_SUPPORTED_FOCUS_MODES[];
+
+        // Values for white balance settings.
+    static const char WHITE_BALANCE_AUTO[];
+    static const char WHITE_BALANCE_INCANDESCENT[];
+    static const char WHITE_BALANCE_FLUORESCENT[];
+    static const char WHITE_BALANCE_WARM_FLUORESCENT[];
+    static const char WHITE_BALANCE_DAYLIGHT[];
+    static const char WHITE_BALANCE_CLOUDY_DAYLIGHT[];
+    static const char WHITE_BALANCE_TWILIGHT[];
+    static const char WHITE_BALANCE_SHADE[];
+
+    // Values for effect settings.
+    static const char EFFECT_NONE[];
+    static const char EFFECT_MONO[];
+    static const char EFFECT_NEGATIVE[];
+    static const char EFFECT_SOLARIZE[];
+    static const char EFFECT_SEPIA[];
+    static const char EFFECT_POSTERIZE[];
+    static const char EFFECT_WHITEBOARD[];
+    static const char EFFECT_BLACKBOARD[];
+    static const char EFFECT_AQUA[];
+
+    // Values for antibanding settings.
+    static const char ANTIBANDING_AUTO[];
+    static const char ANTIBANDING_50HZ[];
+    static const char ANTIBANDING_60HZ[];
+    static const char ANTIBANDING_OFF[];
+
+    // Values for flash mode settings.
+    // Flash will not be fired.
+    static const char FLASH_MODE_OFF[];
+    // Flash will be fired automatically when required. The timing is decided by
+    // camera driver.
+    static const char FLASH_MODE_AUTO[];
+    // Flash will always be fired. The timing is decided by camera driver.
+    static const char FLASH_MODE_ON[];
+    // Flash will be fired in red-eye reduction mode.
+    static const char FLASH_MODE_RED_EYE[];
+    // Constant emission of light. This can be used for video recording.
+    static const char FLASH_MODE_VIDEO_LIGHT[];
+
+    // Values for scene mode settings.
+    static const char SCENE_MODE_AUTO[];
+    static const char SCENE_MODE_ACTION[];
+    static const char SCENE_MODE_PORTRAIT[];
+    static const char SCENE_MODE_LANDSCAPE[];
+    static const char SCENE_MODE_NIGHT[];
+    static const char SCENE_MODE_NIGHT_PORTRAIT[];
+    static const char SCENE_MODE_THEATRE[];
+    static const char SCENE_MODE_BEACH[];
+    static const char SCENE_MODE_SNOW[];
+    static const char SCENE_MODE_SUNSET[];
+    static const char SCENE_MODE_STEADYPHOTO[];
+    static const char SCENE_MODE_FIREWORKS[];
+    static const char SCENE_MODE_SPORTS[];
+    static const char SCENE_MODE_PARTY[];
+    static const char SCENE_MODE_CANDLELIGHT[];
+
+    // Formats for setPreviewFormat and setPictureFormat.
+    static const char PIXEL_FORMAT_YUV422SP[];
+    static const char PIXEL_FORMAT_YUV420SP[]; // NV21
+    static const char PIXEL_FORMAT_YUV422I[]; // YUY2
+    static const char PIXEL_FORMAT_RGB565[];
+    static const char PIXEL_FORMAT_JPEG[];
+
+    // Values for focus mode settings.
+    // Auto-focus mode.
+    static const char FOCUS_MODE_AUTO[];
+    // Focus is set at infinity. Applications should not call
+    // CameraHardwareInterface.autoFocus in this mode.
+    static const char FOCUS_MODE_INFINITY[];
+    static const char FOCUS_MODE_MACRO[];
+    // Focus is fixed. The camera is always in this mode if the focus is not
+    // adjustable. If the camera has auto-focus, this mode can fix the
+    // focus, which is usually at hyperfocal distance. Applications should
+    // not call CameraHardwareInterface.autoFocus in this mode.
+    static const char FOCUS_MODE_FIXED[];
+
 private:
     DefaultKeyedVector<String8,String8>    mMap;
 };
 
-
 }; // namespace android
 
 #endif