On 05.03.2014 20:49, Mauro Carvalho Chehab wrote:
Em Thu, 27 Feb 2014 02:22:06 +0200
Antti Palosaari <crope@xxxxxx> escreveu:
Add documentation for RF tuner bandwidth controls. These controls are
used to set filters on tuner signal path.
Cc: Hans Verkuil <hverkuil@xxxxxxxxx>
Signed-off-by: Antti Palosaari <crope@xxxxxx>
---
Documentation/DocBook/media/v4l/controls.xml | 19 +++++++++++++++++++
1 file changed, 19 insertions(+)
diff --git a/Documentation/DocBook/media/v4l/controls.xml b/Documentation/DocBook/media/v4l/controls.xml
index 6c9dbf6..5550fea 100644
--- a/Documentation/DocBook/media/v4l/controls.xml
+++ b/Documentation/DocBook/media/v4l/controls.xml
@@ -5007,6 +5007,25 @@ descriptor. Calling &VIDIOC-QUERYCTRL; for this control will return a
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>
Huh? If this is enable/disable, why "the range and step are driver-specific"?
Because there is two controls grouped. That is situation of having
AUTO/MANUAL.
V4L2_CID_RF_TUNER_BANDWIDTH_AUTO
V4L2_CID_RF_TUNER_BANDWIDTH
V4L2_CID_RF_TUNER_BANDWIDTH is valid only when
V4L2_CID_RF_TUNER_BANDWIDTH_AUTO == false.
regards
Antti
+ </row>
+ <row>
<entry spanname="id"><constant>V4L2_CID_RF_TUNER_LNA_GAIN_AUTO</constant> </entry>
<entry>boolean</entry>
</row>
--
http://palosaari.fi/
--
To unsubscribe from this list: send the line "unsubscribe linux-media" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
