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[media] uvcvideo: Allow userptr IO mode

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Userptr can be very useful if a UVC camera is requested to use video
buffers allocated by another processing device. So that buffers don't
need to be copied.

Signed-off-by: Javier Martin <javier.martin@vista-silicon.com>
Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
This commit is contained in:
Javier Martin 2012-01-02 11:12:23 -03:00 committed by Mauro Carvalho Chehab
parent 1a5e4c867c
commit ab86e9e03d
1 changed files with 1 additions and 1 deletions
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2
drivers/media/video/uvc/uvc_queue.c
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@ -126,7 +126,7 @@ void uvc_queue_init(struct uvc_video_queue *queue, enum v4l2_buf_type type,
int drop_corrupted)
{
queue->queue.type = type;
queue->queue.io_modes = VB2_MMAP;
queue->queue.io_modes = VB2_MMAP | VB2_USERPTR;
queue->queue.drv_priv = queue;
queue->queue.buf_struct_size = sizeof(struct uvc_buffer);
queue->queue.ops = &uvc_queue_qops;