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authorSylwester Nawrocki <s.nawrocki@samsung.com>2012-01-20 15:38:50 -0300
committerMauro Carvalho Chehab <mchehab@redhat.com>2012-02-28 18:54:06 -0300
commit29fa0eedd4703b0c7c93738faf28ac9d6f930224 (patch)
treea6a7e458e1f6fc98026cb4e4f91de3e1c394b228 /Documentation/DocBook/media/v4l/vidioc-g-jpegcomp.xml
parentc7361ae1e7a5a5395693f1f978af032c41cdb10d (diff)
[media] V4L: Add JPEG compression control class documentation
Add DocBook entries for the JPEG control class. Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com> Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Diffstat (limited to 'Documentation/DocBook/media/v4l/vidioc-g-jpegcomp.xml')
-rw-r--r--Documentation/DocBook/media/v4l/vidioc-g-jpegcomp.xml16
1 files changed, 14 insertions, 2 deletions
diff --git a/Documentation/DocBook/media/v4l/vidioc-g-jpegcomp.xml b/Documentation/DocBook/media/v4l/vidioc-g-jpegcomp.xml
index 01ea24b8438..48748499c09 100644
--- a/Documentation/DocBook/media/v4l/vidioc-g-jpegcomp.xml
+++ b/Documentation/DocBook/media/v4l/vidioc-g-jpegcomp.xml
@@ -57,6 +57,11 @@
<refsect1>
<title>Description</title>
+ <para>These ioctls are <emphasis role="bold">deprecated</emphasis>.
+ New drivers and applications should use <link linkend="jpeg-controls">
+ JPEG class controls</link> for image quality and JPEG markers control.
+ </para>
+
<para>[to do]</para>
<para>Ronald Bultje elaborates:</para>
@@ -86,7 +91,10 @@ to add them.</para>
<row>
<entry>int</entry>
<entry><structfield>quality</structfield></entry>
- <entry></entry>
+ <entry>Deprecated. If <link linkend="jpeg-quality-control"><constant>
+ V4L2_CID_JPEG_IMAGE_QUALITY</constant></link> control is exposed by
+ a driver applications should use it instead and ignore this field.
+ </entry>
</row>
<row>
<entry>int</entry>
@@ -116,7 +124,11 @@ to add them.</para>
<row>
<entry>__u32</entry>
<entry><structfield>jpeg_markers</structfield></entry>
- <entry>See <xref linkend="jpeg-markers" />.</entry>
+ <entry>See <xref linkend="jpeg-markers"/>. Deprecated.
+ If <link linkend="jpeg-active-marker-control"><constant>
+ V4L2_CID_JPEG_ACTIVE_MARKER</constant></link> control
+ is exposed by a driver applications should use it instead
+ and ignore this field.</entry>
</row>
</tbody>
</tgroup>