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Diffstat (limited to 'Documentation/DocBook/media/dvb/fe-set-tone.xml')
-rw-r--r-- | Documentation/DocBook/media/dvb/fe-set-tone.xml | 91 |
1 files changed, 0 insertions, 91 deletions
diff --git a/Documentation/DocBook/media/dvb/fe-set-tone.xml b/Documentation/DocBook/media/dvb/fe-set-tone.xml deleted file mode 100644 index 62d44e4ccc39..000000000000 --- a/Documentation/DocBook/media/dvb/fe-set-tone.xml +++ /dev/null @@ -1,91 +0,0 @@ -<refentry id="FE_SET_TONE"> - <refmeta> - <refentrytitle>ioctl FE_SET_TONE</refentrytitle> - &manvol; - </refmeta> - - <refnamediv> - <refname>FE_SET_TONE</refname> - <refpurpose>Sets/resets the generation of the continuous 22kHz tone.</refpurpose> - </refnamediv> - - <refsynopsisdiv> - <funcsynopsis> - <funcprototype> - <funcdef>int <function>ioctl</function></funcdef> - <paramdef>int <parameter>fd</parameter></paramdef> - <paramdef>int <parameter>request</parameter></paramdef> - <paramdef>enum fe_sec_tone_mode *<parameter>tone</parameter></paramdef> - </funcprototype> - </funcsynopsis> - </refsynopsisdiv> - - <refsect1> - <title>Arguments</title> - <variablelist> - <varlistentry> - <term><parameter>fd</parameter></term> - <listitem> - <para>&fe_fd;</para> - </listitem> - </varlistentry> - <varlistentry> - <term><parameter>request</parameter></term> - <listitem> - <para>FE_SET_TONE</para> - </listitem> - </varlistentry> - <varlistentry> - <term><parameter>tone</parameter></term> - <listitem> - <para>pointer to &fe-sec-tone-mode;</para> - </listitem> - </varlistentry> - </variablelist> - </refsect1> - - <refsect1> - <title>Description</title> - -<para>This ioctl is used to set the generation of the continuous 22kHz tone. - This call requires read/write permissions.</para> -<para>Usually, satellite antenna subsystems require that the digital TV - device to send a 22kHz tone in order to select between high/low band on - some dual-band LNBf. It is also used to send signals to DiSEqC equipment, - but this is done using the DiSEqC ioctls.</para> -<para>NOTE: if more than one device is connected to the same antenna, - setting a tone may interfere on other devices, as they may lose - the capability of selecting the band. So, it is recommended that - applications would change to SEC_TONE_OFF when the device is not used.</para> - -&return-value-dvb; -</refsect1> - -<refsect1 id="fe-sec-tone-mode-t"> -<title>enum fe_sec_tone_mode</title> - -<table pgwide="1" frame="none" id="fe-sec-tone-mode"> - <title>enum fe_sec_tone_mode</title> - <tgroup cols="2"> - &cs-def; - <thead> - <row> - <entry>ID</entry> - <entry>Description</entry> - </row> - </thead> - <tbody valign="top"> - <row> - <entry align="char" id="SEC-TONE-ON"><constant>SEC_TONE_ON</constant></entry> - <entry align="char">Sends a 22kHz tone burst to the antenna</entry> - </row><row> - <entry align="char" id="SEC-TONE-OFF"><constant>SEC_TONE_OFF</constant></entry> - <entry align="char">Don't send a 22kHz tone to the antenna - (except if the FE_DISEQC_* ioctls are called)</entry> - </row> - </tbody> - </tgroup> -</table> -</refsect1> - -</refentry> |