V4L2_CTRL_CLASS_MPEG  876 include/linux/videodev2.h #define V4L2_CID_MPEG_BASE 			(V4L2_CTRL_CLASS_MPEG | 0x900)
V4L2_CTRL_CLASS_MPEG  877 include/linux/videodev2.h #define V4L2_CID_MPEG_CLASS 			(V4L2_CTRL_CLASS_MPEG | 1)
V4L2_CTRL_CLASS_MPEG 1047 include/linux/videodev2.h #define V4L2_CID_MPEG_CX2341X_BASE 				(V4L2_CTRL_CLASS_MPEG | 0x1000)