[media] videobuf2: Add support for file access mode flags for DMABUF exporting
authorPhilipp Zabel <p.zabel@pengutronix.de>
Tue, 21 May 2013 08:11:35 +0000 (05:11 -0300)
committerMauro Carvalho Chehab <m.chehab@samsung.com>
Mon, 9 Dec 2013 16:50:50 +0000 (14:50 -0200)
commitc1b96a236e94d49d9396d0bbceb5524519c5c66e
treea65634750514493440bdea83364001f3a48c9b7f
parentc7223f8f66b685f325879a88a6c955ebf46a8a36
[media] videobuf2: Add support for file access mode flags for DMABUF exporting

Currently it is not possible for userspace to map a DMABUF exported buffer
with write permissions. This patch allows to also pass O_RDONLY/O_RDWR when
exporting the buffer, so that userspace may map it with write permissions.

Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
Documentation/DocBook/media/v4l/vidioc-expbuf.xml
drivers/media/v4l2-core/videobuf2-core.c
drivers/media/v4l2-core/videobuf2-dma-contig.c
include/media/videobuf2-core.h