VIDIOC_REQBUFS    686 drivers/media/v4l2-core/v4l2-dev.c 		SET_VALID_IOCTL(ops, VIDIOC_REQBUFS, vidioc_reqbufs);
VIDIOC_REQBUFS   2697 drivers/media/v4l2-core/v4l2-ioctl.c 	IOCTL_INFO(VIDIOC_REQBUFS, v4l_reqbufs, v4l_print_requestbuffers, INFO_FL_PRIO | INFO_FL_QUEUE),