joy.docbook

linux下LCD驱动的例子代码

<sect1 id="joy-howto">
<title>The Joystick Input Driver</title>

<para>
This section covers the joystick input driver for LCDd.
</para>

<!-- ## Joystick driver ## -->
<sect2 id="joy-config">
<title>Configuration in LCDd.conf</title>

<sect3 id="joy-config-section">
<title>[joy]</title>

<variablelist>
<varlistentry>
  <term>
    <command>Device=</command>
    <arg choice="plain"><replaceable>DEVICE</replaceable></arg>
  </term>
  <listitem><para>
    Select the input device to use [default: <filename>/dev/js0</filename>]
  </para></listitem>
</varlistentry>

<varlistentry>
  <term>
    <command>Map_Axis<replaceable>NUM</replaceable>neg=</command>
    <arg choice="plain"><replaceable>KEY</replaceable></arg>
  </term>
  <term>
    <command>Map_Axis<replaceable>NUM</replaceable>pos=</command>
    <arg choice="plain"><replaceable>KEY</replaceable></arg>
  </term>
  <listitem>
    <para>
    Set the axis map.
    </para>

    <para>
    <replaceable>NUM</replaceable> is an integer starting with <literal>1</literal>
    that represents each axis with the affixes <literal>neg</literal> and
    <literal>pos</literal> determining the direction.
    The exact numbering of the axes depends on the hardware used.
    </para>

    <para>
    <replaceable>KEY</replaceable> can be one of the keys that LCDd recognizes
    (<literal>Left</literal>, <literal>Right</literal>, <literal>Up</literal>, 
    <literal>Down</literal>, <literal>Enter</literal> or <literal>Escape</literal>)
    or any other string that a client can parse.
    </para>
  </listitem>
</varlistentry>

<varlistentry>
  <term>
    <command>Map_Button<replaceable>NUM</replaceable>=</command>
    <arg choice="plain"><replaceable>KEY</replaceable></arg>
  </term>
  <listitem>
    <para>
    Set the button map.
    </para>

    <para>
    <replaceable>NUM</replaceable> is an integer starting with <literal>1</literal>
    that represents each button. The exact numbering of the buttons depends on the
    hardware used.
    </para>

    <para>
    <replaceable>KEY</replaceable> can be one of the keys that LCDd recognizes
    (<literal>Left</literal>, <literal>Right</literal>, <literal>Up</literal>, 
    <literal>Down</literal>, <literal>Enter</literal> or <literal>Escape</literal>)
    or any other string that a client can parse.
    </para>
  </listitem>
</varlistentry>
</variablelist>

</sect3>

</sect2>

</sect1>