From 25f98947ced09b3528f52c983960847a31a0b014 Mon Sep 17 00:00:00 2001 From: Hans Verkuil Date: Wed, 15 Jan 2020 18:32:54 +0100 Subject: 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 Signed-off-by: Mauro Carvalho Chehab --- Documentation/media/uapi/v4l/vidioc-queryctrl.rst | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'Documentation/media') 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 -- cgit v1.2.3-59-g8ed1b