1 <refentry id="FE_GET_PROPERTY">
3 <refentrytitle>ioctl FE_SET_PROPERTY, FE_GET_PROPERTY</refentrytitle>
8 <refname>FE_SET_PROPERTY</refname>
9 <refname>FE_GET_PROPERTY</refname>
10 <refpurpose>FE_SET_PROPERTY sets one or more frontend properties.
11 FE_GET_PROPERTY returns one or more frontend properties.</refpurpose>
17 <funcdef>int <function>ioctl</function></funcdef>
18 <paramdef>int <parameter>fd</parameter></paramdef>
19 <paramdef>int <parameter>request</parameter></paramdef>
20 <paramdef>struct dtv_properties *<parameter>argp</parameter></paramdef>
26 <title>Arguments</title>
29 <term><parameter>fd</parameter></term>
35 <term><parameter>request</parameter></term>
37 <para>FE_SET_PROPERTY, FE_GET_PROPERTY</para>
41 <term><parameter>argp</parameter></term>
43 <para>pointer to &dtv-properties;</para>
50 <title>Description</title>
52 <para>All DVB frontend devices support the
53 <constant>FE_SET_PROPERTY</constant> and <constant>FE_GET_PROPERTY</constant>
54 ioctls. The supported properties and statistics depends on the delivery system
55 and on the device:</para>
58 <para><constant>FE_SET_PROPERTY:</constant></para>
60 <listitem><para>This ioctl is used to set one or more
61 frontend properties.</para></listitem>
62 <listitem><para>This is the basic command to request the frontend to tune into some
63 frequency and to start decoding the digital TV signal.</para></listitem>
64 <listitem><para>This call requires read/write access to the device.</para></listitem>
65 <listitem><para>At return, the values are updated to reflect the
66 actual parameters used.</para></listitem>
70 <para><constant>FE_GET_PROPERTY:</constant></para>
72 <listitem><para>This ioctl is used to get properties and
73 statistics from the frontend.</para></listitem>
74 <listitem><para>No properties are changed, and statistics aren't reset.</para></listitem>
75 <listitem><para>This call only requires read-only access to the device.</para></listitem>