Symbol: V4L2_CTRL_CLASS_FM_TX
drivers/media/v4l2-core/v4l2-ctrls-core.c
2467
if (V4L2_CTRL_ID2WHICH(ctrl->id) == V4L2_CTRL_CLASS_FM_TX)
include/uapi/linux/v4l2-controls.h
1115
#define V4L2_CID_FM_TX_CLASS_BASE (V4L2_CTRL_CLASS_FM_TX | 0x900)
include/uapi/linux/v4l2-controls.h
1116
#define V4L2_CID_FM_TX_CLASS (V4L2_CTRL_CLASS_FM_TX | 1)