From 0969ec18346c174a20e9d7e73231efab95c23f86 Mon Sep 17 00:00:00 2001 From: Mauro Carvalho Chehab Date: Tue, 7 Jun 2011 17:02:37 -0300 Subject: [PATCH] [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 --- Documentation/DocBook/media/dvb/frontend.xml | 17 +++++++++++------ 1 file changed, 11 insertions(+), 6 deletions(-) diff --git a/Documentation/DocBook/media/dvb/frontend.xml b/Documentation/DocBook/media/dvb/frontend.xml index b52f66a..65a790e 100644 --- a/Documentation/DocBook/media/dvb/frontend.xml +++ b/Documentation/DocBook/media/dvb/frontend.xml @@ -23,40 +23,45 @@ cards, in which case there exists no frontend device.
Frontend type -For historical reasons frontend types are named after the type of modulation used in +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: Frontend types - + &cs-def; fe_type Description + DTV_DELIVERY_SYSTEM equivalent type FE_QPSK For DVB-S standard + SYS_DVBS FE_QAM - For DVB-C standard + For DVB-C annex A/C standard + SYS_DVBC_ANNEX_AC FE_OFDM - For DVB-T standard. Also used for ISDB-T on compatibility mode + For DVB-T standard + SYS_DVBT FE_ATSC - For ATSC standard (terrestrial or cable) + For ATSC standard (terrestrial) or for DVB-C Annex B (cable) used in US. + SYS_ATSC (terrestrial) or SYS_DVBC_ANNEX_B (cable)
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 FE_GET_PROPERTY/FE_GET_SET_PROPERTY method. +supported via the new FE_GET_PROPERTY/FE_GET_SET_PROPERTY ioctl's, using the DTV_DELIVERY_SYSTEM parameter.
-- 2.7.4