V4L2_CTRL_CLASS_IMAGE_SOURCE 1027 include/uapi/linux/v4l2-controls.h #define V4L2_CID_IMAGE_SOURCE_CLASS_BASE	(V4L2_CTRL_CLASS_IMAGE_SOURCE | 0x900)
V4L2_CTRL_CLASS_IMAGE_SOURCE 1028 include/uapi/linux/v4l2-controls.h #define V4L2_CID_IMAGE_SOURCE_CLASS		(V4L2_CTRL_CLASS_IMAGE_SOURCE | 1)