[media] DocBook: better document FE_SET_TONE ioctl
Use the proper format for FE_SET_TONE documentation and improve the documentation. Keep the enum fe_sec_tone_mode description together with the ioctl, as both are used together. Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
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Mauro Carvalho Chehab
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<refentry id="FE_SET_TONE">
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<refmeta>
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<refentrytitle>ioctl FE_SET_TONE</refentrytitle>
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&manvol;
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</refmeta>
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<refnamediv>
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<refname>FE_SET_TONE</refname>
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<refpurpose>Sets/resets the generation of the continuous 22kHz tone.</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>&fe-sec-tone-mode; *<parameter>tone</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_TONE</para>
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</listitem>
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</varlistentry>
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<varlistentry>
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<term><parameter>pointer to &fe-sec-tone-mode;</parameter></term>
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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>This ioctl is used to set the generation of the continuous 22kHz tone.
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This call requires read/write permissions.</para>
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<para>Usually, satellital antenna subsystems require that the digital TV
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device to send a 22kHz tone in order to select between high/low band on
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some dual-band LNBf. It is also used to send signals to DiSEqC equipment,
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but this is done using the DiSEqC ioctls.</para>
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<para>NOTE: if more than one device is connected to the same antenna,
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setting a tone may interfere on other devices, as they may lose
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the capability of selecting the band. So, it is recommended that
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applications would change to SEC_TONE_OFF when the device is not used.</para>
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&return-value-dvb;
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</refsect1>
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<section id="fe-sec-tone-mode-t">
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<title>enum fe_sec_voltage</title>
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<table pgwide="1" frame="none" id="fe-sec-tone-mode">
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<title>enum fe_sec_tone_mode</title>
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<tgroup cols="2">
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&cs-def;
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<thead>
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<row>
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<entry>ID</entry>
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<entry>Description</entry>
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</row>
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</thead>
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<tbody valign="top">
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<row>
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<entry align="char">SEC_TONE_ON</entry>
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<entry align="char">Sends a 22kHz tone burst to the antenna</entry>
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</row><row>
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<entry align="char">SEC_TONE_OFF</entry>
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<entry align="char">Don't send a 22kHz tone to the antenna
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(except if the FE_DISEQC_* ioctls are called)</entry>
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</row>
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</tbody>
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</tgroup>
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</table>
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</section>
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</refentry>
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@ -75,21 +75,6 @@ specification is available at
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</programlisting>
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</section>
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<section id="fe-sec-tone-mode-t">
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<title>SEC continuous tone</title>
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<para>The continuous 22KHz tone is usually used with non-DiSEqC capable LNBs to switch the
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high/low band of a dual-band LNB. When using DiSEqC epuipment this voltage has to
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be switched consistently to the DiSEqC commands as described in the DiSEqC
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spec.</para>
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<programlisting>
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typedef enum fe_sec_tone_mode {
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SEC_TONE_ON,
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SEC_TONE_OFF
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} fe_sec_tone_mode_t;
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</programlisting>
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</section>
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<section id="fe-sec-mini-cmd-t">
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<title>SEC tone burst</title>
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@ -582,52 +567,8 @@ typedef enum fe_hierarchy {
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&return-value-dvb;
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</section>
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<section id="FE_SET_TONE">
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<title>FE_SET_TONE</title>
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<para>DESCRIPTION
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</para>
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<informaltable><tgroup cols="1"><tbody><row><entry
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align="char">
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<para>This call is used to set the generation of the continuous 22kHz tone. This call
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requires read/write permissions.</para>
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</entry>
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</row></tbody></tgroup></informaltable>
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<para>SYNOPSIS
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</para>
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<informaltable><tgroup cols="1"><tbody><row><entry
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align="char">
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<para>int ioctl(int fd, int request = <link linkend="FE_SET_TONE">FE_SET_TONE</link>,
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fe_sec_tone_mode_t tone);</para>
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</entry>
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</row></tbody></tgroup></informaltable>
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<para>PARAMETERS
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</para>
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<informaltable><tgroup cols="2"><tbody><row><entry
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align="char">
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<para>int fd</para>
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</entry><entry
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align="char">
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<para>File descriptor returned by a previous call to open().</para>
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</entry>
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</row><row><entry
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align="char">
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<para>int request</para>
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</entry><entry
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align="char">
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<para>Equals <link linkend="FE_SET_TONE">FE_SET_TONE</link> for this command.</para>
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</entry>
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</row><row><entry
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align="char">
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<para>fe_sec_tone_mode_t
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tone</para>
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</entry><entry
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align="char">
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<para>The requested tone generation mode (on/off).</para>
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</entry>
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</row></tbody></tgroup></informaltable>
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&return-value-dvb;
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</section>
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&sub-fe-set-tone;
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&sub-fe-set-voltage;
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&sub-fe-enable-high-lnb-voltage;
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&sub-fe-set-frontend-tune-mode;
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@ -114,10 +114,12 @@ enum fe_sec_voltage {
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typedef enum fe_sec_voltage fe_sec_voltage_t;
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typedef enum fe_sec_tone_mode {
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enum fe_sec_tone_mode {
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SEC_TONE_ON,
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SEC_TONE_OFF
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} fe_sec_tone_mode_t;
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};
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typedef enum fe_sec_tone_mode fe_sec_tone_mode_t;
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typedef enum fe_sec_mini_cmd {
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