Linux kernel development work - see feature branches https://git.zx2c4.com/linux-dev/atom/drivers/media/media-dev-allocator.c?h=master 2019-05-28T16:15:46Z 2019-05-28T16:15:46Z Hans Verkuil hverkuil@xs4all.nl 2019-05-02T13:42:31Z urn:sha1:c612e54fca55d9380c1378eaa623d74ed89b62db It is really weird that the media controller sources are all top-level in drivers/media. It is a bit of a left-over from long ago when most media sources were all at the top-level. At some point we reorganized the directory structure, but the media-*.c sources where never moved to their own directory. So create a new mc directory and move all sources there. Also rename the prefix from media- to mc-. Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org> 2019-04-22T15:18:26Z Shuah Khan shuah@kernel.org 2019-04-02T00:40:19Z urn:sha1:6e1d824e7a1d324f7fdd276fb7133013109d3764 Media Device Allocator API to allows multiple drivers share a media device. This API solves a very common use-case for media devices where one physical device (an USB stick) provides both audio and video. When such media device exposes a standard USB Audio class, a proprietary Video class, two or more independent drivers will share a single physical USB bridge. In such cases, it is necessary to coordinate access to the shared resource. Using this API, drivers can allocate a media device with the shared struct device as the key. Once the media device is allocated by a driver, other drivers can get a reference to it. The media device is released when all the references are released. Signed-off-by: Shuah Khan <shuah@kernel.org> Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>