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[media] v4l2-ctrls: don't initially set CH_VALUE for write-only controls

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When sending the SEND_INITIAL event for write-only controls the
V4L2_EVENT_CTRL_CH_VALUE flag should not be set. It's meaningless.

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
This commit is contained in:
Hans Verkuil 2011-06-14 02:42:45 -03:00 committed by Mauro Carvalho Chehab
parent 2151bdc887
commit c12fcfd676
1 changed files with 4 additions and 2 deletions
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6
drivers/media/video/v4l2-ctrls.c
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@ -2033,9 +2033,11 @@ void v4l2_ctrl_add_event(struct v4l2_ctrl *ctrl,
if (ctrl->type != V4L2_CTRL_TYPE_CTRL_CLASS &&
(sev->flags & V4L2_EVENT_SUB_FL_SEND_INITIAL)) {
struct v4l2_event ev;
u32 changes = V4L2_EVENT_CTRL_CH_FLAGS;
fill_event(&ev, ctrl, V4L2_EVENT_CTRL_CH_VALUE |
V4L2_EVENT_CTRL_CH_FLAGS);
if (!(ctrl->flags & V4L2_CTRL_FLAG_WRITE_ONLY))
changes |= V4L2_EVENT_CTRL_CH_VALUE;
fill_event(&ev, ctrl, changes);
v4l2_event_queue_fh(sev->fh, &ev);
}
v4l2_ctrl_unlock(ctrl);