bayrad.docbook

linux下LCD驱动的例子代码

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

<para>
This section talks about using LCDproc with the BayRAD LCD modules by EMAC, Inc.
</para>

<sect2 id="bayrad-features">
<title>Features</title>

<para>
The BayRAD LCD modules are designed to fit into 5,25" drive bays.
They contain an LCD display that is 20 characters wide and 2 lines high
surrounded by 4 buttons labeled <literal>Menu</literal>, <literal>Select</literal>,
<literal>+/Yes</literal>, and <literal>-/No</literal>.
</para>

<para>
BayRAD modules are connected to the PC using a serial RS232 connection getting
operating power using the standard floppy drive power connector.
</para>

<para>
For more information see the 
<ulink url="http://www.emacinc.com/bay_rad.htm">BayRAD home page</ulink>
</para>

</sect2>


<!-- ## EMAC BayRAD driver ## -->
<sect2 id="bayrad-config">
<title>Configuration in LCDd.conf</title>

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

<variablelist>
<varlistentry>
  <term>
    <command>Device=</command>
    <arg choice="plain"><replaceable>DEVICE</replaceable></arg>
  </term>
  <listitem><para>
    Select the serial output device to use.
    If not given, default is <filename>/dev/lcd</filename>.
  </para></listitem>
</varlistentry>

<varlistentry>
  <term>
    <command>Speed=</command>
    <arg choice="plain">
    <group choice="req">
      <arg choice="plain"><literal>1200</literal></arg>
      <arg choice="plain"><literal>2400</literal></arg>
      <arg choice="plain"><literal><emphasis>9600</emphasis></literal></arg>
      <arg choice="plain"><literal>19200</literal></arg>
    </group>
    </arg>
  </term>
  <listitem><para>
    Set the the baud rate to use when communicating with the LCD.
    <literal>9600</literal> is the default, if not specified.
  </para></listitem>
</varlistentry>
</variablelist>

</sect3>

</sect2>

</sect1>