anyone knows which kernel version supports dma_buf for v4l2src?

Sebastian Dröge sebastian at centricular.com
Wed Dec 4 02:43:28 PST 2013


On Mi, 2013-12-04 at 09:21 +0000, Zhao, Halley wrote:
> Hi Experts:
> v4l2src in (gst 1.2) supports dma_buf.
> However, when I tried it on Ubuntu 13.10, it reports ": Failed EXPBUF: Inappropriate ioctl for device".
> Anyone knows which version of kernel support this feature?

Most important the v4l2 driver must support dmabuf, and currently only
very few do. If you don't know about it, chances are good that your
driver does not support dmabuf yet.

-- 
Sebastian Dröge <sebastian at centricular.com>
Centricular Ltd - http://www.centricular.com
Expertise, Straight from the Source
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