V4L2_CTRL_FLAG_VOLATILE behaviour when V4L2_CTRL_FLAG_EXECUTE_ON_WRITE
is set was not properly explained.
Also set some hyperlink to ease the Documentation browsing.
Reported-by: Dimitrios Katsaros <patcherwork@xxxxxxxxx>
Credit-to: Hans Verkuil <hansverk@xxxxxxxxx>
Signed-off-by: Ricardo Ribalda Delgado <ricardo.ribalda@xxxxxxxxx>
---
v2: By Hans Verkuil <hansverk@xxxxxxxxx>
-Fix some syntax errors
By Mauro Carvalho Chehab <mchehab@xxxxxxxxxx>
-Add hyperlinks
Documentation/media/uapi/v4l/vidioc-queryctrl.rst | 11 +++++++----
1 file changed, 7 insertions(+), 4 deletions(-)
diff --git a/Documentation/media/uapi/v4l/vidioc-queryctrl.rst b/Documentation/media/uapi/v4l/vidioc-queryctrl.rst
index 8d6e61a7284d..22475f484cb3 100644
--- a/Documentation/media/uapi/v4l/vidioc-queryctrl.rst
+++ b/Documentation/media/uapi/v4l/vidioc-queryctrl.rst
@@ -728,10 +728,12 @@ See also the examples in :ref:`control`.
case the hardware calculates the gain value based on the lighting
conditions which can change over time.
- .. note:: Setting a new value for a volatile control will have no
- effect and no ``V4L2_EVENT_CTRL_CH_VALUE`` will be sent, unless
- the ``V4L2_CTRL_FLAG_EXECUTE_ON_WRITE`` flag (see below) is
- also set. Otherwise the new value will just be ignored.
+ .. note:: Setting a new value for a volatile control will be ignored
+ unless
+ :ref:`V4L2_CTRL_FLAG_EXECUTE_ON_WRITE <FLAG_EXECUTE_ON_WRITE>`
+ is also set.
+ Setting a new value for a volatile control will *never* trigger a
+ :ref:`V4L2_EVENT_CTRL_CH_VALUE <ctrl-changes-flags>` event.
- .. row 9
@@ -747,6 +749,7 @@ See also the examples in :ref:`control`.
payload of the control.
- .. row 10
+ .. _FLAG_EXECUTE_ON_WRITE:
- ``V4L2_CTRL_FLAG_EXECUTE_ON_WRITE``
--
2.8.1
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