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.mar...@vista-silicon.com>
---
drivers/media/video/uvc/uvc_queue.c | 2 +-
1 files changed, 1 insertions(+), 1 deletions(-)
diff --git a/drivers/media/video/uvc/uvc_queue.c
b/drivers/media/video/uvc/uvc_queue.c
index 518f77d..8f54e24 100644
--- a/drivers/media/video/uvc/uvc_queue.c
+++ b/drivers/media/video/uvc/uvc_queue.c
@@ -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;
--
1.7.0.4
--
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