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+.. Permission is granted to copy, distribute and/or modify this
+.. document under the terms of the GNU Free Documentation License,
+.. Version 1.1 or any later version published by the Free Software
+.. Foundation, with no Invariant Sections, no Front-Cover Texts
+.. and no Back-Cover Texts. A copy of the license is included at
+.. Documentation/userspace-api/media/fdl-appendix.rst.
+..
+.. TODO: replace it to GFDL-1.1-or-later WITH no-invariant-sections
+
+.. _dvb_frontend:
+
+#######################
+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)
+
+-  Satellite systems: DVB-S, DVB-S2, DVB Turbo, ISDB-S, DSS
+
+The Digital TV frontend controls several sub-devices including:
+
+-  Tuner
+
+-  Digital TV demodulator
+
+-  Low noise amplifier (LNA)
+
+-  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
+``linux/dvb/frontend.h`` in your application.
+
+.. note::
+
+   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>`__.
+
+
+.. toctree::
+    :maxdepth: 1
+
+    query-dvb-frontend-info
+    dvb-fe-read-status
+    dvbproperty
+    frontend_fcalls