V4L2_CTRL_CLASS_DETECT 1116 include/uapi/linux/v4l2-controls.h #define V4L2_CID_DETECT_CLASS_BASE (V4L2_CTRL_CLASS_DETECT | 0x900) V4L2_CTRL_CLASS_DETECT 1117 include/uapi/linux/v4l2-controls.h #define V4L2_CID_DETECT_CLASS (V4L2_CTRL_CLASS_DETECT | 1)