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| author | Ricardo Ribalda <ricardo.ribalda@gmail.com> | 2015-03-20 13:30:46 (GMT) |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab@osg.samsung.com> | 2015-04-08 09:32:50 (GMT) |
| commit | b08d8d26f4520187e09191f0c45374383b5a74eb (patch) | |
| tree | f6c916e586c8df8d1c60462721948e265efc1d17 | |
| parent | 5190931d1d992fadc6ad9cc53b630783cf8e39c5 (diff) | |
| download | linux-b08d8d26f4520187e09191f0c45374383b5a74eb.tar.xz | |
[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>
| -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 45c5b47..2ebc33e 100644 --- a/drivers/media/v4l2-core/v4l2-ctrls.c +++ b/drivers/media/v4l2-core/v4l2-ctrls.c @@ -1609,6 +1609,15 @@ 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); |