[media] DocBook: document RF tuner bandwidth controls
Add documentation for RF tuner bandwidth controls. These controls are
used to set filters on tuner signal path.
Cc: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Antti Palosaari <crope@iki.fi>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
diff --git a/Documentation/DocBook/media/v4l/controls.xml b/Documentation/DocBook/media/v4l/controls.xml
index 0340b962..7789215 100644
--- a/Documentation/DocBook/media/v4l/controls.xml
+++ b/Documentation/DocBook/media/v4l/controls.xml
@@ -5045,6 +5045,25 @@
description of this control class.</entry>
</row>
<row>
+ <entry spanname="id"><constant>V4L2_CID_RF_TUNER_BANDWIDTH_AUTO</constant> </entry>
+ <entry>boolean</entry>
+ </row>
+ <row>
+ <entry spanname="descr">Enables/disables tuner radio channel
+bandwidth configuration. In automatic mode bandwidth configuration is performed
+by the driver.</entry>
+ </row>
+ <row>
+ <entry spanname="id"><constant>V4L2_CID_RF_TUNER_BANDWIDTH</constant> </entry>
+ <entry>integer</entry>
+ </row>
+ <row>
+ <entry spanname="descr">Filter(s) on tuner signal path are used to
+filter signal according to receiving party needs. Driver configures filters to
+fulfill desired bandwidth requirement. Used when V4L2_CID_RF_TUNER_BANDWIDTH_AUTO is not
+set. The range and step are driver-specific.</entry>
+ </row>
+ <row>
<entry spanname="id"><constant>V4L2_CID_RF_TUNER_LNA_GAIN_AUTO</constant> </entry>
<entry>boolean</entry>
</row>
