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| author | Ricardo Ribalda <ricardo.ribalda@gmail.com> | 2018-03-28 15:12:35 -0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2018-04-08 11:49:47 +0200 |
| commit | fe1d928469cc7fcde4a079f52d6e67dc1445fb52 (patch) | |
| tree | 33462f76de1d57392b6af8a63b3437b327ea5120 /drivers/media/v4l2-core | |
| parent | 5f5fe19a886db65a5a9a8b4cc27473e0a5ce7916 (diff) | |
| download | linux-stable-fe1d928469cc7fcde4a079f52d6e67dc1445fb52.tar.gz linux-stable-fe1d928469cc7fcde4a079f52d6e67dc1445fb52.tar.bz2 linux-stable-fe1d928469cc7fcde4a079f52d6e67dc1445fb52.zip | |
media: media/v4l2-ctrls: volatiles should not generate CH_VALUE
Volatile controls should not generate CH_VALUE events.
Set has_changed to false to prevent this happening.
Signed-off-by: Ricardo Ribalda Delgado <ricardo.ribalda@gmail.com>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/media/v4l2-core')
| -rw-r--r-- | drivers/media/v4l2-core/v4l2-ctrls.c | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/drivers/media/v4l2-core/v4l2-ctrls.c b/drivers/media/v4l2-core/v4l2-ctrls.c index 3c4e22855652..2bdb2a3512a4 100644 --- a/drivers/media/v4l2-core/v4l2-ctrls.c +++ b/drivers/media/v4l2-core/v4l2-ctrls.c @@ -1619,6 +1619,15 @@ static int cluster_changed(struct v4l2_ctrl *master) if (ctrl == NULL) continue; + /* + * Set has_changed to false to avoid generating + * the event V4L2_EVENT_CTRL_CH_VALUE + */ + if (ctrl->flags & V4L2_CTRL_FLAG_VOLATILE) { + ctrl->has_changed = false; + continue; + } + for (idx = 0; !ctrl_changed && idx < ctrl->elems; idx++) ctrl_changed = !ctrl->type_ops->equal(ctrl, idx, ctrl->p_cur, ctrl->p_new); |