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[media] DocBook/frontend.xml: Correlate dvb delivery systems 

As the DVB API provides two ways to specify the delivery
systems, correlate both ways into a table.

Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
This commit is contained in:
Mauro Carvalho Chehab 2011-06-07 17:02:37 -03:00
parent 95e61e0188
commit 0969ec1834
1 changed files with 11 additions and 6 deletions
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17
Documentation/DocBook/media/dvb/frontend.xml
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@ -23,40 +23,45 @@ cards, in which case there exists no frontend device.</para>
<section id="fe-type-t">
<title>Frontend type</title>
<para>For historical reasons frontend types are named after the type of modulation used in
<para>For historical reasons, frontend types are named by the type of modulation used in
transmission. The fontend types are given by fe_type_t type, defined as:</para>
<table pgwide="1" frame="none" id="fe-type">
<title>Frontend types</title>
<tgroup cols="2">
<tgroup cols="3">
&cs-def;
<thead>
<row>
<entry>fe_type</entry>
<entry>Description</entry>
<entry><link linkend="DTV-DELIVERY-SYSTEM">DTV_DELIVERY_SYSTEM</link> equivalent type</entry>
</row>
</thead>
<tbody valign="top">
<row>
<entry id="FE_QPSK"><constant>FE_QPSK</constant></entry>
<entry>For DVB-S standard</entry>
<entry><constant>SYS_DVBS</constant></entry>
</row>
<row>
<entry id="FE_QAM"><constant>FE_QAM</constant></entry>
<entry>For DVB-C standard</entry>
<entry>For DVB-C annex A/C standard</entry>
<entry><constant>SYS_DVBC_ANNEX_AC</constant></entry>
</row>
<row>
<entry id="FE_OFDM"><constant>FE_OFDM</constant></entry>
<entry>For DVB-T standard. Also used for ISDB-T on compatibility mode</entry>
<entry>For DVB-T standard</entry>
<entry><constant>SYS_DVBT</constant></entry>
</row>
<row>
<entry id="FE_ATSC"><constant>FE_ATSC</constant></entry>
<entry>For ATSC standard (terrestrial or cable)</entry>
<entry>For ATSC standard (terrestrial) or for DVB-C Annex B (cable) used in US.</entry>
<entry><constant>SYS_ATSC</constant> (terrestrial) or <constant>SYS_DVBC_ANNEX_B</constant> (cable)</entry>
</row>
</tbody></tgroup></table>
<para>Newer formats like DVB-S2, ISDB-T, ISDB-S and DVB-T2 are not described at the above, as they're
supported via the new <link linkend="FE_GET_SET_PROPERTY">FE_GET_PROPERTY/FE_GET_SET_PROPERTY</link> method.
supported via the new <link linkend="FE_GET_SET_PROPERTY">FE_GET_PROPERTY/FE_GET_SET_PROPERTY</link> ioctl's, using the <link linkend="DTV-DELIVERY-SYSTEM">DTV_DELIVERY_SYSTEM</link> parameter.
</para>
</section>