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Date: Tue, 26 Feb 2013 09:06:32 +0100 From: Hans Verkuil <hverkuil@...all.nl> To: Andrey Smirnov <andrew.smirnov@...il.com> Cc: mchehab@...hat.com, sameo@...ux.intel.com, perex@...ex.cz, tiwai@...e.de, linux-media@...r.kernel.org, linux-kernel@...r.kernel.org Subject: Re: [PATCH v5 6/8] v4l2: Add documentation for the FM RX controls On Tue February 26 2013 07:38:52 Andrey Smirnov wrote: > Add appropriate documentation for all the newly added standard > controls. Give credit to Manjunatha Halli. > Signed-off-by: Andrey Smirnov <andrew.smirnov@...il.com> > --- > Documentation/DocBook/media/v4l/compat.xml | 3 + > Documentation/DocBook/media/v4l/controls.xml | 72 ++++++++++++++++++++ > .../DocBook/media/v4l/vidioc-g-ext-ctrls.xml | 11 ++- > 3 files changed, 85 insertions(+), 1 deletion(-) > > diff --git a/Documentation/DocBook/media/v4l/compat.xml b/Documentation/DocBook/media/v4l/compat.xml > index 104a1a2..f418bc3 100644 > --- a/Documentation/DocBook/media/v4l/compat.xml > +++ b/Documentation/DocBook/media/v4l/compat.xml > @@ -2310,6 +2310,9 @@ more information.</para> > <listitem> > <para>Added FM Modulator (FM TX) Extended Control Class: <constant>V4L2_CTRL_CLASS_FM_TX</constant> and their Control IDs.</para> > </listitem> > +<listitem> > + <para>Added FM Receiver (FM RX) Extended Control Class: <constant>V4L2_CTRL_CLASS_FM_RX</constant> and their Control IDs.</para> > + </listitem> > <listitem> > <para>Added Remote Controller chapter, describing the default Remote Controller mapping for media devices.</para> > </listitem> > diff --git a/Documentation/DocBook/media/v4l/controls.xml b/Documentation/DocBook/media/v4l/controls.xml > index 9e8f854..e8fe005 100644 > --- a/Documentation/DocBook/media/v4l/controls.xml > +++ b/Documentation/DocBook/media/v4l/controls.xml > @@ -4687,4 +4687,76 @@ interface and may change in the future.</para> > </table> > > </section> > + > + <section id="fm-rx-controls"> > + <title>FM Receiver Control Reference</title> > + > + <para>The FM Receiver (FM_RX) class includes controls for common features of > + FM Reception capable devices.</para> > + > + <table pgwide="1" frame="none" id="fm-rx-control-id"> > + <title>FM_RX Control IDs</title> > + > + <tgroup cols="4"> > + <colspec colname="c1" colwidth="1*" /> > + <colspec colname="c2" colwidth="6*" /> > + <colspec colname="c3" colwidth="2*" /> > + <colspec colname="c4" colwidth="6*" /> > + <spanspec namest="c1" nameend="c2" spanname="id" /> > + <spanspec namest="c2" nameend="c4" spanname="descr" /> > + <thead> > + <row> > + <entry spanname="id" align="left">ID</entry> > + <entry align="left">Type</entry> > + </row><row rowsep="1"><entry spanname="descr" align="left">Description</entry> > + </row> > + </thead> > + <tbody valign="top"> > + <row><entry></entry></row> > + <row> > + <entry spanname="id"><constant>V4L2_CID_FM_RX_CLASS</constant> </entry> > + <entry>class</entry> > + </row><row><entry spanname="descr">The FM_RX class > +descriptor. Calling &VIDIOC-QUERYCTRL; for this control will return a > +description of this control class.</entry> > + </row> > + <row> > + <entry spanname="id"><constant>V4L2_CID_RDS_RECEPTION</constant> </entry> > + <entry>boolean</entry> > + </row><row><entry spanname="descr">Enables/disables RDS > + reception by the radio tuner</entry> > + </row> > + <row> > + <entry spanname="id"><constant>V4L2_CID_TUNE_DEEMPHASIS</constant> </entry> > + <entry>integer</entry> This is type 'enum v4l2_deemphasis', not integer. BTW, V4L2_CID_TUNE_PREEMPHASIS has the same mistake, can you update that entry as well to 'enum v4l2_preemphasis'? > + </row> > + <row id="v4l2-deemphasis"><entry spanname="descr">Configures the de-emphasis value for reception. > +A de-emphasis filter is applied to the broadcast to accentuate the high audio frequencies. > +Depending on the region, a time constant of either 50 or 75 useconds is used. The enum v4l2_emphasis enum v4l2_deemphasis > +defines possible values for de-emphasis. Here they are:</entry> > + </row><row> > + <entrytbl spanname="descr" cols="2"> > + <tbody valign="top"> > + <row> > + <entry><constant>V4L2_PREEMPHASIS_DISABLED</constant> </entry> > + <entry>No de-emphasis is applied.</entry> > + </row> > + <row> > + <entry><constant>V4L2_PREEMPHASIS_50_uS</constant> </entry> > + <entry>A de-emphasis of 50 uS is used.</entry> > + </row> > + <row> > + <entry><constant>V4L2_PREEMPHASIS_75_uS</constant> </entry> > + <entry>A de-emphasis of 75 uS is used.</entry> For the three constants above: PRE -> DE > + </row> > + </tbody> > + </entrytbl> > + > + </row> > + <row><entry></entry></row> > + </tbody> > + </tgroup> > + </table> > + > + </section> > </section> > diff --git a/Documentation/DocBook/media/v4l/vidioc-g-ext-ctrls.xml b/Documentation/DocBook/media/v4l/vidioc-g-ext-ctrls.xml > index 4e16112..b03a57b 100644 > --- a/Documentation/DocBook/media/v4l/vidioc-g-ext-ctrls.xml > +++ b/Documentation/DocBook/media/v4l/vidioc-g-ext-ctrls.xml > @@ -9,7 +9,7 @@ VIDIOC_TRY_EXT_CTRLS</refentrytitle> > <refname>VIDIOC_G_EXT_CTRLS</refname> > <refname>VIDIOC_S_EXT_CTRLS</refname> > <refname>VIDIOC_TRY_EXT_CTRLS</refname> > - <refpurpose>Get or set the value of several controls, try control > + <refpurpose>Get or set the value of several controls, try control Spurious whitespace change, just revert this to the original. > values</refpurpose> > </refnamediv> > > @@ -319,6 +319,15 @@ These controls are described in <xref > processing controls. These controls are described in <xref > linkend="image-process-controls" />.</entry> > </row> > + > + <row> > + <entry><constant>V4L2_CTRL_CLASS_FM_RX</constant></entry> > + <entry>0xa10000</entry> > + <entry>The class containing FM Receiver (FM RX) controls. > +These controls are described in <xref > + linkend="fm-rx-controls" />.</entry> > + </row> > + > </tbody> > </tgroup> > </table> > Regards, Hans -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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