V4L/DVB: v4l: Add V4L2_CID_IRIS_ABSOLUTE and V4L2_CID_IRIS_RELATIVE controls

Those control, as their names imply, control the camera aperture
settings.

Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

1 files changed, 19 insertions, 0 deletions

diff --git a/Documentation/DocBook/v4l/controls.xml b/Documentation/DocBook/v4l/controls.xml
index e1bdbb6eff84..7e0c68747134 100644
--- a/Documentation/DocBook/v4l/controls.xml
+++ b/Documentation/DocBook/v4l/controls.xml
@@ -1831,6 +1831,25 @@ wide-angle direction. The zoom speed unit is driver-specific.</entry>
           <row><entry></entry></row>
 
           <row>
+            <entry spanname="id"><constant>V4L2_CID_IRIS_ABSOLUTE</constant>&nbsp;</entry>
+            <entry>integer</entry>
+          </row><row><entry spanname="descr">This control sets the
+camera's aperture to the specified value. The unit is undefined.
+Larger values open the iris wider, smaller values close it.</entry>
+          </row>
+          <row><entry></entry></row>
+
+          <row>
+            <entry spanname="id"><constant>V4L2_CID_IRIS_RELATIVE</constant>&nbsp;</entry>
+            <entry>integer</entry>
+          </row><row><entry spanname="descr">This control modifies the
+camera's aperture by the specified amount. The unit is undefined.
+Positive values open the iris one step further, negative values close
+it one step further. This is a write-only control.</entry>
+          </row>
+          <row><entry></entry></row>
+
+          <row>
             <entry spanname="id"><constant>V4L2_CID_PRIVACY</constant>&nbsp;</entry>
             <entry>boolean</entry>
           </row><row><entry spanname="descr">Prevent video from being acquired