<option type="float" id="opt/@@DRVNAME@@-brightness">
  <!-- A multilingual <comments> block can appear here, too;
       it should be treated as documentation for the user. -->
  <arg_longname>
   <en>stpBrightness</en>
  </arg_longname>
  <arg_shortname>
   <en>stpBrightness</en><!-- backends only know <en> shortnames! -->
  </arg_shortname>
  <arg_execution>@@GROUP@@
   <arg_order>170</arg_order>
   <arg_spot>B</arg_spot>
   <arg_substitution />
   <arg_proto>Brightness=%s,</arg_proto>
  </arg_execution>
  <constraints>
     <constraint sense="true">
      <driver>@@DRVNAME@@</driver>
      <arg_defval>@@DEFVAL@@</arg_defval>
     </constraint>
  </constraints>
  <arg_max>@@MAXVAL@@</arg_max>
  <arg_min>@@MINVAL@@</arg_min>
</option>
