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Diffstat (limited to 'Documentation/media/uapi/dvb/frontend.rst')
| -rw-r--r-- | Documentation/media/uapi/dvb/frontend.rst | 39 |
1 files changed, 21 insertions, 18 deletions
diff --git a/Documentation/media/uapi/dvb/frontend.rst b/Documentation/media/uapi/dvb/frontend.rst index e051a9012540..4967c48d46ce 100644 --- a/Documentation/media/uapi/dvb/frontend.rst +++ b/Documentation/media/uapi/dvb/frontend.rst @@ -2,20 +2,22 @@ .. _dvb_frontend: -################ -DVB Frontend API -################ -The DVB frontend API was designed to support three types of delivery -systems: +####################### +Digital TV Frontend API +####################### + +The Digital TV frontend API was designed to support three groups of delivery +systems: Terrestrial, cable and Satellite. Currently, the following +delivery systems are supported: - Terrestrial systems: DVB-T, DVB-T2, ATSC, ATSC M/H, ISDB-T, DVB-H, DTMB, CMMB -- Cable systems: DVB-C Annex A/C, ClearQAM (DVB-C Annex B), ISDB-C +- Cable systems: DVB-C Annex A/C, ClearQAM (DVB-C Annex B) - Satellite systems: DVB-S, DVB-S2, DVB Turbo, ISDB-S, DSS -The DVB frontend controls several sub-devices including: +The Digital TV frontend controls several sub-devices including: - Tuner @@ -23,7 +25,7 @@ The DVB frontend controls several sub-devices including: - Low noise amplifier (LNA) -- Satellite Equipment Control (SEC) hardware (only for Satellite). +- Satellite Equipment Control (SEC) [#f1]_. The frontend can be accessed through ``/dev/dvb/adapter?/frontend?``. Data types and ioctl definitions can be accessed by including @@ -31,16 +33,18 @@ Data types and ioctl definitions can be accessed by including .. note:: - Transmission via the internet (DVB-IP) is not yet handled by this - API but a future extension is possible. + Transmission via the internet (DVB-IP) and MMT (MPEG Media Transport) + is not yet handled by this API but a future extension is possible. + +.. [#f1] -On Satellite systems, the API support for the Satellite Equipment -Control (SEC) allows to power control and to send/receive signals to -control the antenna subsystem, selecting the polarization and choosing -the Intermediate Frequency IF) of the Low Noise Block Converter Feed -Horn (LNBf). It supports the DiSEqC and V-SEC protocols. The DiSEqC -(digital SEC) specification is available at -`Eutelsat <http://www.eutelsat.com/satellites/4_5_5.html>`__. + On Satellite systems, the API support for the Satellite Equipment + Control (SEC) allows to power control and to send/receive signals to + control the antenna subsystem, selecting the polarization and choosing + the Intermediate Frequency IF) of the Low Noise Block Converter Feed + Horn (LNBf). It supports the DiSEqC and V-SEC protocols. The DiSEqC + (digital SEC) specification is available at + `Eutelsat <http://www.eutelsat.com/satellites/4_5_5.html>`__. .. toctree:: @@ -50,4 +54,3 @@ Horn (LNBf). It supports the DiSEqC and V-SEC protocols. The DiSEqC dvb-fe-read-status dvbproperty frontend_fcalls - frontend_legacy_dvbv3_api |