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authorDevin Heitmueller <dheitmueller@kernellabs.com>2010-03-11 21:27:59 -0300
committerMauro Carvalho Chehab <mchehab@redhat.com>2010-05-18 00:50:16 -0300
commit7a01f6dbc7abb85a6ec048dd45db92ef1b91fe78 (patch)
treee851423ecb63c95e326f45707fce8852641379e9 /Documentation/DocBook
parentfea551fae99c79f43e519cf53e35462ff5ce2a03 (diff)
downloadlinux-linaro-android-7a01f6dbc7abb85a6ec048dd45db92ef1b91fe78.tar.gz
V4L/DVB: videodev2: introduce a common control for chroma gain
Introduce a new control for modifying the chroma gain. This allows for user intervention in abnormal signal conditions cases where the decoder's chroma AGC cannot compensate and the value needs to be adjusted manually. This work was sponsored by EyeMagnet Limited. Signed-off-by: Devin Heitmueller <dheitmueller@kernellabs.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Diffstat (limited to 'Documentation/DocBook')
-rw-r--r--Documentation/DocBook/v4l/controls.xml6
1 files changed, 6 insertions, 0 deletions
diff --git a/Documentation/DocBook/v4l/controls.xml b/Documentation/DocBook/v4l/controls.xml
index f4645061041..e1bdbb6eff8 100644
--- a/Documentation/DocBook/v4l/controls.xml
+++ b/Documentation/DocBook/v4l/controls.xml
@@ -267,6 +267,12 @@ minimum value disables backlight compensation.</entry>
<entry>Chroma automatic gain control.</entry>
</row>
<row>
+ <entry><constant>V4L2_CID_CHROMA_GAIN</constant></entry>
+ <entry>integer</entry>
+ <entry>Adjusts the Chroma gain control (for use when chroma AGC
+ is disabled).</entry>
+ </row>
+ <row>
<entry><constant>V4L2_CID_COLOR_KILLER</constant></entry>
<entry>boolean</entry>
<entry>Enable the color killer (&ie; force a black &amp; white image in case of a weak video signal).</entry>