v4l2_device_supports_requests  450 drivers/media/v4l2-core/v4l2-dev.c 		if (v4l2_device_supports_requests(vdev->v4l2_dev)) {
v4l2_device_supports_requests 2871 drivers/media/v4l2-core/v4l2-ioctl.c 	if (v4l2_device_supports_requests(vfd->v4l2_dev) &&