V4L2_EVENT_CTRL_CH_RANGE 4315 drivers/media/v4l2-core/v4l2-ctrls.c ret = set_ctrl(NULL, ctrl, V4L2_EVENT_CTRL_CH_RANGE); V4L2_EVENT_CTRL_CH_RANGE 4317 drivers/media/v4l2-core/v4l2-ctrls.c send_event(NULL, ctrl, V4L2_EVENT_CTRL_CH_RANGE);