[media] media: New flag V4L2_CTRL_FLAG_EXECUTE_ON_WRITE

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 <[email protected]> Signed-off-by: Hans Verkuil <[email protected]> Signed-off-by: Mauro Carvalho Chehab <[email protected]>
neviim · Apr 8, 2015 · b6e5b8f · b6e5b8f
1 parent b08d8d2
commit b6e5b8f
Showing 1 changed file with 1 addition and 0 deletions.
diff --git a/include/uapi/linux/videodev2.h b/include/uapi/linux/videodev2.h
@@ -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