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| author | Sylwester Nawrocki <sylvester.nawrocki@gmail.com> | 2013-01-22 19:00:23 -0300 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab@redhat.com> | 2013-02-05 15:05:26 -0200 |
| commit | 22fa4279eebc3fa4b3c3dc2b190158dbbafcda9f (patch) | |
| tree | 35e661c4993be3dda8342f836c8a7d7dc9e067c6 /include/media | |
| parent | 4f4d14b70a29c679dd53e367b0d9b007a7117ee3 (diff) | |
| download | linux-22fa4279eebc3fa4b3c3dc2b190158dbbafcda9f.tar.bz2 | |
[media] V4L: Add v4l2_ctrl_subdev_subscribe_event() helper function
Add a v4l2 core helper function that can be used as the subdev
.subscribe_event handler. This allows to eliminate some boilerplate
from drivers that are only handling the control events.
Signed-off-by: Sylwester Nawrocki <sylvester.nawrocki@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Diffstat (limited to 'include/media')
| -rw-r--r-- | include/media/v4l2-ctrls.h | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/include/media/v4l2-ctrls.h b/include/media/v4l2-ctrls.h index 91125b6f05a5..1e849461fc9d 100644 --- a/include/media/v4l2-ctrls.h +++ b/include/media/v4l2-ctrls.h @@ -654,4 +654,9 @@ int v4l2_subdev_s_ext_ctrls(struct v4l2_subdev *sd, struct v4l2_ext_controls *cs int v4l2_subdev_g_ctrl(struct v4l2_subdev *sd, struct v4l2_control *ctrl); int v4l2_subdev_s_ctrl(struct v4l2_subdev *sd, struct v4l2_control *ctrl); +/* Can be used as a subscribe_event function that just subscribes control + events. */ +int v4l2_ctrl_subdev_subscribe_event(struct v4l2_subdev *sd, struct v4l2_fh *fh, + struct v4l2_event_subscription *sub); + #endif |