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FE_SET_PROPERTY/FE_GET_PROPERTY actually expects a struct dtv_properties argument. Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
82 lines
2.5 KiB
XML
82 lines
2.5 KiB
XML
<refentry id="FE_GET_PROPERTY">
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<refmeta>
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<refentrytitle>ioctl FE_SET_PROPERTY, FE_GET_PROPERTY</refentrytitle>
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&manvol;
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</refmeta>
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<refnamediv>
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<refname>FE_SET_PROPERTY</refname>
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<refname>FE_GET_PROPERTY</refname>
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<refpurpose>FE_SET_PROPERTY sets one or more frontend properties.
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FE_GET_PROPERTY returns one or more frontend properties.</refpurpose>
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</refnamediv>
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<refsynopsisdiv>
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<funcsynopsis>
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<funcprototype>
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<funcdef>int <function>ioctl</function></funcdef>
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<paramdef>int <parameter>fd</parameter></paramdef>
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<paramdef>int <parameter>request</parameter></paramdef>
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<paramdef>struct dtv_properties *<parameter>argp</parameter></paramdef>
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</funcprototype>
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</funcsynopsis>
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</refsynopsisdiv>
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<refsect1>
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<title>Arguments</title>
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<variablelist>
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<varlistentry>
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<term><parameter>fd</parameter></term>
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<listitem>
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<para>&fe_fd;</para>
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</listitem>
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</varlistentry>
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<varlistentry>
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<term><parameter>request</parameter></term>
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<listitem>
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<para>FE_SET_PROPERTY, FE_GET_PROPERTY</para>
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</listitem>
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</varlistentry>
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<varlistentry>
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<term><parameter>argp</parameter></term>
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<listitem>
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<para>pointer to &dtv-properties;</para>
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</listitem>
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</varlistentry>
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</variablelist>
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</refsect1>
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<refsect1>
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<title>Description</title>
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<para>All DVB frontend devices support the
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<constant>FE_SET_PROPERTY</constant> and <constant>FE_GET_PROPERTY</constant>
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ioctls. The supported properties and statistics depends on the delivery system
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and on the device:</para>
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<itemizedlist>
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<listitem>
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<para><constant>FE_SET_PROPERTY:</constant></para>
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<itemizedlist>
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<listitem><para>This ioctl is used to set one or more
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frontend properties.</para></listitem>
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<listitem><para>This is the basic command to request the frontend to tune into some
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frequency and to start decoding the digital TV signal.</para></listitem>
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<listitem><para>This call requires read/write access to the device.</para></listitem>
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<listitem><para>At return, the values are updated to reflect the
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actual parameters used.</para></listitem>
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</itemizedlist>
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</listitem>
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<listitem>
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<para><constant>FE_GET_PROPERTY:</constant></para>
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<itemizedlist>
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<listitem><para>This ioctl is used to get properties and
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statistics from the frontend.</para></listitem>
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<listitem><para>No properties are changed, and statistics aren't reset.</para></listitem>
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<listitem><para>This call only requires read-only access to the device.</para></listitem>
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</itemizedlist>
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</listitem>
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</itemizedlist>
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&return-value-dvb;
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</refsect1>
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</refentry>
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