1<refentry id="FE_GET_PROPERTY">
2  <refmeta>
3    <refentrytitle>ioctl FE_SET_PROPERTY, FE_GET_PROPERTY</refentrytitle>
4    &manvol;
5  </refmeta>
6
7  <refnamediv>
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>
12  </refnamediv>
13
14  <refsynopsisdiv>
15    <funcsynopsis>
16      <funcprototype>
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>
21      </funcprototype>
22    </funcsynopsis>
23  </refsynopsisdiv>
24
25  <refsect1>
26    <title>Arguments</title>
27        <variablelist>
28      <varlistentry>
29	<term><parameter>fd</parameter></term>
30	<listitem>
31	  <para>&fe_fd;</para>
32	</listitem>
33      </varlistentry>
34      <varlistentry>
35	<term><parameter>request</parameter></term>
36	<listitem>
37	  <para>FE_SET_PROPERTY, FE_GET_PROPERTY</para>
38	</listitem>
39      </varlistentry>
40      <varlistentry>
41	<term><parameter>argp</parameter></term>
42	<listitem>
43	    <para>pointer to &dtv-properties;</para>
44	</listitem>
45      </varlistentry>
46    </variablelist>
47  </refsect1>
48
49  <refsect1>
50    <title>Description</title>
51
52    <para>All DVB frontend devices support the
53<constant>FE_SET_PROPERTY</constant> and <constant>FE_GET_PROPERTY</constant>
54ioctls. The supported properties and statistics depends on the delivery system
55and on the device:</para>
56<itemizedlist>
57<listitem>
58    <para><constant>FE_SET_PROPERTY:</constant></para>
59<itemizedlist>
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>
67</itemizedlist>
68</listitem>
69<listitem>
70    <para><constant>FE_GET_PROPERTY:</constant></para>
71<itemizedlist>
72<listitem><para>This ioctl is used to get properties and
73statistics 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>
76</itemizedlist>
77</listitem>
78</itemizedlist>
79&return-value-dvb;
80</refsect1>
81</refentry>
82