V4L/DVB (13619): v4l2-spec: Adds EBUSY error code for S_STD and QUERYSTD ioctls

During review of Video Timing API documentation, Hans Verkuil had a comment
on adding EBUSY error code for VIDIOC_S_STD and VIDIOC_QUERYSTD ioctls. This
patch updates the document for this.

Signed-off-by: Muralidharan Karicheri <m-karicheri2@ti.com>
Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

1 files changed, 6 insertions, 0 deletions

diff --git a/Documentation/DocBook/v4l/vidioc-querystd.xml b/Documentation/DocBook/v4l/vidioc-querystd.xml
index b5a7ff934486..1a9e60393091 100644
--- a/Documentation/DocBook/v4l/vidioc-querystd.xml
+++ b/Documentation/DocBook/v4l/vidioc-querystd.xml
@@ -70,6 +70,12 @@ current video input or output.</para>
           <para>This ioctl is not supported.</para>
         </listitem>
       </varlistentry>
+      <varlistentry>
+        <term><errorcode>EBUSY</errorcode></term>
+        <listitem>
+          <para>The device is busy and therefore can not detect the standard</para>
+        </listitem>
+      </varlistentry>
     </variablelist>
   </refsect1>
 </refentry>