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[media] media: New flag V4L2_CTRL_FLAG_EXECUTE_ON_WRITE

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Create a new flag that represent controls which its value needs to be
passed to the driver even if it has not changed.

They typically represent actions, like triggering a flash or clearing an
error flag. So writing to such a control means some action is executed.

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>
This commit is contained in:
Ricardo Ribalda 2015-03-20 10:45:43 -03:00 • committed by Mauro Carvalho Chehab
commit b6e5b8f1a9
1 changed files with 1 additions and 0 deletions
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include/uapi/linux/videodev2.h
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@ -1457,6 +1457,7 @@ struct v4l2_querymenu {
#define V4L2_CTRL_FLAG_WRITE_ONLY 0x0040
#define V4L2_CTRL_FLAG_VOLATILE 0x0080
#define V4L2_CTRL_FLAG_HAS_PAYLOAD 0x0100
#define V4L2_CTRL_FLAG_EXECUTE_ON_WRITE 0x0200
/* Query flags, to be ORed with the control ID */
#define V4L2_CTRL_FLAG_NEXT_CTRL 0x80000000