[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>
Fri, 29 Nov 2013 16:12:43 +0000 (14:12 -0200)
commitea3aba8482be6f3e4815f4014fa7302fc77c9c3f
tree452730ad3c76a2041ffc8935a3fd18aa60f09906
parentd8eec74a229f4e3448bfdff9ff3cd3f61bb1e63d
[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