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authorSakari Ailus <sakari.ailus@maxwell.research.nokia.com>2011-05-15 12:33:58 -0300
committerMauro Carvalho Chehab <mchehab@redhat.com>2011-07-27 17:52:19 -0300
commit82f7b59cb80679038e8e3a99738cce5e094f69b6 (patch)
tree7e70424805cfe23611aac4ff9eadb136b65f146f /Documentation
parent45f239ab82b2a808103a0fae02594961b09c5c8b (diff)
[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 <sakari.ailus@maxwell.research.nokia.com> Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Diffstat (limited to 'Documentation')
-rw-r--r--Documentation/DocBook/media/v4l/vidioc-g-ctrl.xml7
-rw-r--r--Documentation/DocBook/media/v4l/vidioc-g-ext-ctrls.xml7
2 files changed, 14 insertions, 0 deletions
diff --git a/Documentation/DocBook/media/v4l/vidioc-g-ctrl.xml b/Documentation/DocBook/media/v4l/vidioc-g-ctrl.xml
index 8b5e6ff7f3d..5146d00782e 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.</para>
</listitem>
</varlistentry>
+ <varlistentry>
+ <term><errorcode>EACCES</errorcode></term>
+ <listitem>
+ <para>Attempt to set a read-only control or to get a
+ write-only control.</para>
+ </listitem>
+ </varlistentry>
</variablelist>
</refsect1>
</refentry>
diff --git a/Documentation/DocBook/media/v4l/vidioc-g-ext-ctrls.xml b/Documentation/DocBook/media/v4l/vidioc-g-ext-ctrls.xml
index 3aa7f8f9ff0..5e73517fa23 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 <structfield>size</structfield> is set to a value that is enough
to store the payload and this error code is returned.</para>
</listitem>
</varlistentry>
+ <varlistentry>
+ <term><errorcode>EACCES</errorcode></term>
+ <listitem>
+ <para>Attempt to try or set a read-only control or to get a
+ write-only control.</para>
+ </listitem>
+ </varlistentry>
</variablelist>
</refsect1>
</refentry>