From 82f7b59cb80679038e8e3a99738cce5e094f69b6 Mon Sep 17 00:00:00 2001 From: Sakari Ailus Date: Sun, 15 May 2011 12:33:58 -0300 Subject: [PATCH] [media] v4l: Document EACCES in VIDIOC_[GS]_CTRL and VIDIOC_{G, S, TRY}_EXT_CTRLS VIDIOC_S_CTRL and VIDIOC_S_EXT_CTRLS return EACCES when setting a read-only control VIDIOC_TRY_EXT_CTRLS when trying a read-only control and VIDIOC_G_CTRL and VIDIOC_G_EXT_CTRLS when getting a write-only control. Document this. Signed-off-by: Sakari Ailus Acked-by: Laurent Pinchart Signed-off-by: Mauro Carvalho Chehab --- Documentation/DocBook/media/v4l/vidioc-g-ctrl.xml | 7 +++++++ Documentation/DocBook/media/v4l/vidioc-g-ext-ctrls.xml | 7 +++++++ 2 files changed, 14 insertions(+) diff --git a/Documentation/DocBook/media/v4l/vidioc-g-ctrl.xml b/Documentation/DocBook/media/v4l/vidioc-g-ctrl.xml index 8b5e6ff7f3df..5146d00782e3 100644 --- a/Documentation/DocBook/media/v4l/vidioc-g-ctrl.xml +++ b/Documentation/DocBook/media/v4l/vidioc-g-ctrl.xml @@ -117,6 +117,13 @@ because another applications took over control of the device function this control belongs to. + + EACCES + + Attempt to set a read-only control or to get a + write-only control. + + diff --git a/Documentation/DocBook/media/v4l/vidioc-g-ext-ctrls.xml b/Documentation/DocBook/media/v4l/vidioc-g-ext-ctrls.xml index 3aa7f8f9ff0c..5e73517fa232 100644 --- a/Documentation/DocBook/media/v4l/vidioc-g-ext-ctrls.xml +++ b/Documentation/DocBook/media/v4l/vidioc-g-ext-ctrls.xml @@ -294,6 +294,13 @@ The field size is set to a value that is enough to store the payload and this error code is returned. + + EACCES + + Attempt to try or set a read-only control or to get a + write-only control. + + -- 2.20.1