summaryrefslogtreecommitdiffstats
path: root/Documentation/DocBook/media/v4l/media-ioc-device-info.xml
diff options
context:
space:
mode:
authorLars-Peter Clausen <lars@metafoo.de>2015-06-24 13:50:31 -0300
committerMauro Carvalho Chehab <mchehab@osg.samsung.com>2015-07-17 09:48:32 -0300
commit2cf4090fc8db8f9c2f3778a6a3768357a2b6aa6e (patch)
treefad974031a65840b92503941911af518eeab38bc /Documentation/DocBook/media/v4l/media-ioc-device-info.xml
parent6f5bcfc30e1918c6029ebfdc9ed5002d618ab3de (diff)
downloadblackbird-op-linux-2cf4090fc8db8f9c2f3778a6a3768357a2b6aa6e.tar.gz
blackbird-op-linux-2cf4090fc8db8f9c2f3778a6a3768357a2b6aa6e.zip
[media] adv7842: Deliver resolution change events to userspace
Use the new v4l2_subdev_notify_event() helper function to deliver the resolution change event to userspace via the v4l2 subdev event queue as well as to the bridge driver using the callback notify mechanism. This allows userspace applications to react to changes in resolution. This is useful and often necessary for video pipelines where there is no direct 1-to-1 relationship between the subdevice converter and the video capture device and hence it does not make sense to directly forward the event to the video capture device node. Signed-off-by: Lars-Peter Clausen <lars@metafoo.de> [hans.verkuil@cisco.com: fix obvious mistake: v4l2_event_subdev_unsubscribe -> v4l2_ctrl_subdev_subscribe_event] Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
Diffstat (limited to 'Documentation/DocBook/media/v4l/media-ioc-device-info.xml')
0 files changed, 0 insertions, 0 deletions
OpenPOWER on IntegriCloud