VIDIOC_G_PRIORITY
__set_bit(_IOC_NR(VIDIOC_G_PRIORITY), valid_ioctls);
set_bit(_IOC_NR(VIDIOC_G_PRIORITY), vdev->valid_ioctls);
IOCTL_INFO(VIDIOC_G_PRIORITY, v4l_g_priority, v4l_print_u32, 0),
ret = ioctl(fd, VIDIOC_G_PRIORITY, &old_priority);
ret = ioctl(fd, VIDIOC_G_PRIORITY, &priority_to_compare);