参照元†
- struct uvc_video_queue *queue
- enum v4l2_buf_type type
- int drop_corrupted
返り値†
int uvc_queue_init(struct uvc_video_queue *queue, enum v4l2_buf_type type,
int drop_corrupted)
{
int ret;
queue->queue.type = type;
queue->queue.io_modes = VB2_MMAP | VB2_USERPTR | VB2_DMABUF;
queue->queue.drv_priv = queue;
queue->queue.buf_struct_size = sizeof(struct uvc_buffer);
queue->queue.ops = &uvc_queue_qops;
queue->queue.mem_ops = &vb2_vmalloc_memops;
queue->queue.timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC
| V4L2_BUF_FLAG_TSTAMP_SRC_SOE;
queue->queue.lock = &queue->mutex;
ret = vb2_queue_init(&queue->queue);
if (ret)
return ret;
mutex_init(&queue->mutex);
spin_lock_init(&queue->irqlock);
INIT_LIST_HEAD(&queue->irqqueue);
queue->flags = drop_corrupted ? UVC_QUEUE_DROP_CORRUPTED : 0;
return 0;
}
コメント†