V4L2_CTRL_CLASS_FM_TX 754 include/uapi/linux/v4l2-controls.h #define V4L2_CID_FM_TX_CLASS_BASE (V4L2_CTRL_CLASS_FM_TX | 0x900) V4L2_CTRL_CLASS_FM_TX 755 include/uapi/linux/v4l2-controls.h #define V4L2_CID_FM_TX_CLASS (V4L2_CTRL_CLASS_FM_TX | 1)