V4L/DVB: v4l: add V4L2_PIX_FMT_Y4 and V4L2_PIX_FMT_Y6 pixelformats

Old 4 and 6 bit greyscale pixel formats for the old bw-qcam webcam.
This is needed to convert it to V4L2.

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

1 files changed, 12 insertions, 0 deletions

diff --git a/Documentation/DocBook/v4l/pixfmt.xml b/Documentation/DocBook/v4l/pixfmt.xml
index 885968d6a2fc..c4ad0a8e42dc 100644
--- a/Documentation/DocBook/v4l/pixfmt.xml
+++ b/Documentation/DocBook/v4l/pixfmt.xml
@@ -792,6 +792,18 @@ http://www.thedirks.org/winnov/</ulink></para></entry>
             <entry>'YYUV'</entry>
             <entry>unknown</entry>
           </row>
+          <row id="V4L2-PIX-FMT-Y4">
+            <entry><constant>V4L2_PIX_FMT_Y4</constant></entry>
+            <entry>'Y04 '</entry>
+            <entry>Old 4-bit greyscale format. Only the least significant 4 bits of each byte are used,
+the other bits are set to 0.</entry>
+          </row>
+          <row id="V4L2-PIX-FMT-Y6">
+            <entry><constant>V4L2_PIX_FMT_Y6</constant></entry>
+            <entry>'Y06 '</entry>
+            <entry>Old 6-bit greyscale format. Only the least significant 6 bits of each byte are used,
+the other bits are set to 0.</entry>
+          </row>
         </tbody>
       </tgroup>
     </table>