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| author | Hans Verkuil <hverkuil-cisco@xs4all.nl> | 2020-01-15 18:32:54 +0100 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab+huawei@kernel.org> | 2020-02-24 16:14:06 +0100 |
| commit | 25f98947ced09b3528f52c983960847a31a0b014 (patch) | |
| tree | 8500dba083ee9b0dc6015d278a8abb378bf91e30 /Documentation/media/uapi | |
| parent | media: usbtv: fix control-message timeouts (diff) | |
| download | linux-25f98947ced09b3528f52c983960847a31a0b014.tar.xz linux-25f98947ced09b3528f52c983960847a31a0b014.zip | |
media: vidioc-queryctrl.rst: fix error code
An attempt to get a BUTTON control returns EACCES, not EINVAL.
BUTTON controls have V4L2_CTRL_FLAG_WRITE_ONLY set, and the documentation
for that flag correctly says that getting a write-only control returns
EACCES. It's the description of the BUTTON type that's wrong, so fix
that so they are consistent.
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Diffstat (limited to 'Documentation/media/uapi')
| -rw-r--r-- | Documentation/media/uapi/v4l/vidioc-queryctrl.rst | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/Documentation/media/uapi/v4l/vidioc-queryctrl.rst b/Documentation/media/uapi/v4l/vidioc-queryctrl.rst index 6690928e657b..22ff3c6abd9c 100644 --- a/Documentation/media/uapi/v4l/vidioc-queryctrl.rst +++ b/Documentation/media/uapi/v4l/vidioc-queryctrl.rst @@ -378,7 +378,7 @@ See also the examples in :ref:`control`. - 0 - 0 - A control which performs an action when set. Drivers must ignore - the value passed with ``VIDIOC_S_CTRL`` and return an ``EINVAL`` error + the value passed with ``VIDIOC_S_CTRL`` and return an ``EACCES`` error code on a ``VIDIOC_G_CTRL`` attempt. * - ``V4L2_CTRL_TYPE_INTEGER64`` - any |