uvcg_queue_cancel
void uvcg_queue_cancel(struct uvc_video_queue *queue, int disconnect);
uvcg_queue_cancel(queue, 1);
uvcg_queue_cancel(queue, 0);
uvcg_queue_cancel(queue, 0);
uvcg_queue_cancel(queue, 0);
uvcg_queue_cancel(&video->queue, 0);