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diff --git a/Documentation/linux_tv/media/dvb/frontend.rst b/Documentation/linux_tv/media/dvb/frontend.rst new file mode 100644 index 0000000..46be409 --- /dev/null +++ b/Documentation/linux_tv/media/dvb/frontend.rst @@ -0,0 +1,62 @@ +.. -*- coding: utf-8; mode: rst -*- + +.. _dvb_frontend: + +################ +DVB Frontend API +################ +The DVB frontend API was designed to support three types of delivery +systems: + +- 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 + +- Satellite systems: DVB-S, DVB-S2, DVB Turbo, ISDB-S, DSS + +The DVB frontend controls several sub-devices including: + +- Tuner + +- Digital TV demodulator + +- Low noise amplifier (LNA) + +- Satellite Equipment Control (SEC) hardware (only for Satellite). + +The frontend can be accessed through ``/dev/dvb/adapter?/frontend?``. +Data types and ioctl definitions can be accessed by including +``linux/dvb/frontend.h`` in your application. + +NOTE: Transmission via the internet (DVB-IP) is not yet handled by this +API but a future extension is possible. + +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:: + :maxdepth: 1 + + query-dvb-frontend-info + dvb-fe-read-status + dvbproperty + frontend_fcalls + frontend_legacy_dvbv3_api + + + + +.. ------------------------------------------------------------------------------ +.. This file was automatically converted from DocBook-XML with the dbxml +.. library (https://github.com/return42/sphkerneldoc). The origin XML comes +.. from the linux kernel, refer to: +.. +.. * https://github.com/torvalds/linux/tree/master/Documentation/DocBook +.. ------------------------------------------------------------------------------ |
