<title>DVB Frontend API</title>
<para>The DVB frontend device controls the tuner and DVB demodulator
hardware. It can be accessed through <emphasis
role="tt">/dev/dvb/adapter0/frontend0</emphasis>. Data types and and
ioctl definitions can be accessed by including <emphasis
role="tt">linux/dvb/frontend.h</emphasis> in your application.</para>
<para>DVB frontends come in three varieties: DVB-S (satellite), DVB-C
(cable) and DVB-T (terrestrial). Transmission via the internet (DVB-IP)
is not yet handled by this API but a future extension is possible. For
DVB-S the frontend device also supports satellite equipment control
(SEC) via DiSEqC and V-SEC protocols. The DiSEqC (digital SEC)
specification is available from
<ulink url="http://www.eutelsat.com/satellites/4_5_5.html">Eutelsat</ulink>.</para>
<para>Note that the DVB API may also be used for MPEG decoder-only PCI
cards, in which
