<option type="enum" id="opt/drv_x125-Bidirectional">
  <!-- A multilingual <comments> block can appear here, too;
       it should be treated as documentation for the user. -->
  <arg_longname>
   <en>Bidirectional Printing</en>
  </arg_longname>
  <arg_shortname>
   <en>Bidirectional</en><!-- backends only know <en> shortnames! -->
  </arg_shortname>
  <arg_execution>
   <arg_group>General</arg_group>
   <arg_order>130</arg_order>
   <arg_spot>E</arg_spot>
   <arg_substitution />
   <arg_proto>%s</arg_proto>
  </arg_execution>
  <constraints>
     <constraint sense="true">
      <driver>drv_x125</driver>
      <arg_defval>ev/drv_x125-Bidirectional-Yes</arg_defval>
     </constraint>
  </constraints>
  <enum_vals>
   <enum_val id="ev/drv_x125-Bidirectional-Yes">
    <ev_longname>
     <en>Yes</en>
    </ev_longname>
    <!-- A multilingual <comments> block can appear here, too;
         it should be treated as documentation for the user. -->
    <ev_shortname>
     <en>Yes</en>
     <!-- Until someone tells me how to learn the user locale in 
          backends, the shortname must be monolingual in <en>! -->
    </ev_shortname>
    <ev_driverval>1</ev_driverval>
   </enum_val>
   <enum_val id="ev/drv_x125-Bidirectional-No">
    <ev_longname>
     <en>No</en>
    </ev_longname>
    <!-- A multilingual <comments> block can appear here, too;
         it should be treated as documentation for the user. -->
    <ev_shortname>
     <en>No</en>
     <!-- Until someone tells me how to learn the user locale in 
          backends, the shortname must be monolingual in <en>! -->
    </ev_shortname>
    <ev_driverval>0</ev_driverval>
   </enum_val>
  </enum_vals>
</option>
