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| author | Mauro Carvalho Chehab <mchehab@osg.samsung.com> | 2015-05-29 02:00:43 +0300 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab@osg.samsung.com> | 2015-05-30 17:02:25 +0300 |
| commit | 58e11cc3c1f7d7e9fa70ba6c3d363456151fcffd (patch) | |
| tree | b2cbf52bc11aa877cc0d64595e41ceb934dcc71a /Documentation/DocBook/media/dvb/dvbproperty.xml | |
| parent | 01f18d9633e9d6db323534ef2863b0f87393ade2 (diff) | |
| download | linux-58e11cc3c1f7d7e9fa70ba6c3d363456151fcffd.tar.xz | |
[media] DocBook: improve documentation for DVB spectral inversion
Format it as a table and provide more details.
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
Diffstat (limited to 'Documentation/DocBook/media/dvb/dvbproperty.xml')
| -rw-r--r-- | Documentation/DocBook/media/dvb/dvbproperty.xml | 52 |
1 files changed, 39 insertions, 13 deletions
diff --git a/Documentation/DocBook/media/dvb/dvbproperty.xml b/Documentation/DocBook/media/dvb/dvbproperty.xml index d9861b54f8c8..41085537acfc 100644 --- a/Documentation/DocBook/media/dvb/dvbproperty.xml +++ b/Documentation/DocBook/media/dvb/dvbproperty.xml @@ -238,19 +238,45 @@ get/set up to 64 properties. The actual meaning of each property is described on </section> <section id="DTV-INVERSION"> <title><constant>DTV_INVERSION</constant></title> - <para>The Inversion field can take one of these values: - </para> - <programlisting> - typedef enum fe_spectral_inversion { - INVERSION_OFF, - INVERSION_ON, - INVERSION_AUTO - } fe_spectral_inversion_t; - </programlisting> - <para>It indicates if spectral inversion should be presumed or not. In the automatic setting - (<constant>INVERSION_AUTO</constant>) the hardware will try to figure out the correct setting by - itself. - </para> + + <para>Specifies if the frontend should do spectral inversion or not.</para> + +<section id="fe-spectral-inversion-t"> +<title>enum fe_modulation: Frontend spectral inversion</title> + +<para>This parameter indicates if spectral inversion should be presumed or not. + In the automatic setting (<constant>INVERSION_AUTO</constant>) the hardware + will try to figure out the correct setting by itself. If the hardware + doesn't support, the DVB core will try to lock at the carrier first with + inversion off. If it fails, it will try to enable inversion. +</para> + +<table pgwide="1" frame="none" id="fe-spectral-inversion"> + <title>enum fe_modulation</title> + <tgroup cols="2"> + &cs-def; + <thead> + <row> + <entry>ID</entry> + <entry>Description</entry> + </row> + </thead> + <tbody valign="top"> + <row> + <entry>INVERSION_OFF</entry> + <entry>Don't do spectral band inversion.</entry> + </row><row> + <entry>INVERSION_ON</entry> + <entry>Do spectral band inversion.</entry> + </row><row> + <entry>INVERSION_AUTO</entry> + <entry>Autodetect spectral band inversion.</entry> + </row> + </tbody> + </tgroup> +</table> +</section> + </section> <section id="DTV-DISEQC-MASTER"> <title><constant>DTV_DISEQC_MASTER</constant></title> |