[media] V4L: Add MATRIX option to V4L2_CID_EXPOSURE_METERING control
This patch adds a menu option to the V4L2_CID_EXPOSURE_METERING
control for multi-zone metering.
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>
diff --git a/Documentation/DocBook/media/v4l/controls.xml b/Documentation/DocBook/media/v4l/controls.xml
index c8eb6c2..8d7a779 100644
--- a/Documentation/DocBook/media/v4l/controls.xml
+++ b/Documentation/DocBook/media/v4l/controls.xml
@@ -3142,6 +3142,13 @@
<entry><constant>V4L2_EXPOSURE_METERING_SPOT</constant> </entry>
<entry>Measure only very small area at the center of the frame.</entry>
</row>
+ <row>
+ <entry><constant>V4L2_EXPOSURE_METERING_MATRIX</constant> </entry>
+ <entry>A multi-zone metering. The light intensity is measured
+in several points of the frame and the the results are combined. The
+algorithm of the zones selection and their significance in calculating the
+final value is device dependant.</entry>
+ </row>
</tbody>
</entrytbl>
</row>