Commit 25f98947 authored Jan 15, 2020 by Hans Verkuil Committed by Mauro Carvalho Chehab Feb 24, 2020

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>

parent 536f561d

Documentation/media/uapi/v4l/vidioc-queryctrl.rst

+1 −1

Original line number	Diff line number	Diff line
		@@ -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

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