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Diffstat (limited to 'Documentation/DocBook/media/v4l/vidioc-g-output.xml')
-rw-r--r-- | Documentation/DocBook/media/v4l/vidioc-g-output.xml | 85 |
1 files changed, 0 insertions, 85 deletions
diff --git a/Documentation/DocBook/media/v4l/vidioc-g-output.xml b/Documentation/DocBook/media/v4l/vidioc-g-output.xml deleted file mode 100644 index 4533068ec..000000000 --- a/Documentation/DocBook/media/v4l/vidioc-g-output.xml +++ /dev/null @@ -1,85 +0,0 @@ -<refentry id="vidioc-g-output"> - <refmeta> - <refentrytitle>ioctl VIDIOC_G_OUTPUT, VIDIOC_S_OUTPUT</refentrytitle> - &manvol; - </refmeta> - - <refnamediv> - <refname>VIDIOC_G_OUTPUT</refname> - <refname>VIDIOC_S_OUTPUT</refname> - <refpurpose>Query or select the current video output</refpurpose> - </refnamediv> - - <refsynopsisdiv> - <funcsynopsis> - <funcprototype> - <funcdef>int <function>ioctl</function></funcdef> - <paramdef>int <parameter>fd</parameter></paramdef> - <paramdef>int <parameter>request</parameter></paramdef> - <paramdef>int *<parameter>argp</parameter></paramdef> - </funcprototype> - </funcsynopsis> - </refsynopsisdiv> - - <refsect1> - <title>Arguments</title> - - <variablelist> - <varlistentry> - <term><parameter>fd</parameter></term> - <listitem> - <para>&fd;</para> - </listitem> - </varlistentry> - <varlistentry> - <term><parameter>request</parameter></term> - <listitem> - <para>VIDIOC_G_OUTPUT, VIDIOC_S_OUTPUT</para> - </listitem> - </varlistentry> - <varlistentry> - <term><parameter>argp</parameter></term> - <listitem> - <para></para> - </listitem> - </varlistentry> - </variablelist> - </refsect1> - - <refsect1> - <title>Description</title> - - <para>To query the current video output applications call the -<constant>VIDIOC_G_OUTPUT</constant> ioctl with a pointer to an integer -where the driver stores the number of the output, as in the -&v4l2-output; <structfield>index</structfield> field. This ioctl -will fail only when there are no video outputs, returning the -&EINVAL;.</para> - - <para>To select a video output applications store the number of the -desired output in an integer and call the -<constant>VIDIOC_S_OUTPUT</constant> ioctl with a pointer to this integer. -Side effects are possible. For example outputs may support different -video standards, so the driver may implicitly switch the current -standard. -standard. Because of these possible side effects applications -must select an output before querying or negotiating any other parameters.</para> - - <para>Information about video outputs is available using the -&VIDIOC-ENUMOUTPUT; ioctl.</para> - </refsect1> - - <refsect1> - &return-value; - - <variablelist> - <varlistentry> - <term><errorcode>EINVAL</errorcode></term> - <listitem> - <para>The number of the video output is out of bounds, or -there are no video outputs at all.</para> - </listitem> - </varlistentry> - </variablelist> - </refsect1> -</refentry> |