ula200.docbook

linux下LCD驱动的例子代码

<sect1 id="ula200-howto">
<title>The ula200 Driver</title>

<para>
This section talks about using LCDproc with LCD displays that use the
ula200 chipset.
</para>

<!-- ## ELV ULA200 driver ## -->
<sect2 id="ula200-config">
<title>Configuration in LCDd.conf</title>

<sect3 id="ula200-config-section">
<title>[ula200]</title>

<variablelist>
<varlistentry>
  <term>
    <command>Size=</command>
    <arg choice="plain">
      <replaceable>WIDTH</replaceable>
      <literal>x</literal>
      <replaceable>HEIGHT</replaceable>
    </arg>
  </term>
  <listitem><para>
    Select the LCD size [default: <literal>20x4</literal>]
  </para></listitem>
</varlistentry>

<varlistentry>
  <term>
    <command>KeyMap_A=</command>
    <arg choice="plain"><replaceable>KEY</replaceable></arg>
  </term>
  <term>
    <command>KeyMap_B=</command>
    <arg choice="plain"><replaceable>KEY</replaceable></arg>
  </term>
  <term>
    <command>KeyMap_C=</command>
    <arg choice="plain"><replaceable>KEY</replaceable></arg>
  </term>
  <term>
    <command>KeyMap_D=</command>
    <arg choice="plain"><replaceable>KEY</replaceable></arg>
  </term>
  <term>
    <command>KeyMap_E=</command>
    <arg choice="plain"><replaceable>KEY</replaceable></arg>
  </term>
  <term>
    <command>KeyMap_F=</command>
    <arg choice="plain"><replaceable>KEY</replaceable></arg>
  </term>
  <listitem><para>
    If you have a non standard keypad you can associate any keystrings to keys.
    There are 6 input key in the CwLnx hardware that generate characters
    from '<literal>A</literal>' to '<literal>F</literal>'.
    Legal values for <replaceable>KEY</replaceable> are <literal>Up</literal>,
    <literal>Down</literal>, <literal>Left</literal>, <literal>Right</literal>,
    <literal>Enter</literal> and <literal>Escape</literal>.
    </para>
    <para>
    The following it the built-in default mapping hardcoded in the driver.
    </para>
    <informaltable>
    <tgroup cols="2">
      <tbody>
        <row>
	  <entry>KeyMap_A</entry>
	  <entry><literal>Up</literal></entry>
	</row>
        <row>
	  <entry>KeyMap_B</entry>
	  <entry><literal>Down</literal></entry>
	</row>
        <row>
	  <entry>KeyMap_C</entry>
	  <entry><literal>Left</literal></entry>
	</row>
        <row>
	  <entry>KeyMap_D</entry>
	  <entry><literal>Right</literal></entry>
	</row>
        <row>
	  <entry>KeyMap_E</entry>
	  <entry><literal>Enter</literal></entry>
	</row>
        <row>
	  <entry>KeyMap_F</entry>
	  <entry><literal>Escape</literal></entry>
	</row>
      </tbody>
    </tgroup>
    </informaltable>
    <para>
    You may leave it unchanged if you have a standard keypad.
    You can change it if you want to report other keystrings or have a non
    standard keypad.
    </para>
  </listitem>
</varlistentry>
</variablelist>

</sect3>

</sect2>

</sect1>