<request name="SetDeviceModifierMapping" opcode="27">
<field type="CARD8" name="device_id" />
<field type="CARD8" name="keycodes_per_modifier" />
<request name="SetDeviceModifierMapping" opcode="27">
<field type="CARD8" name="device_id" />
<field type="CARD8" name="keycodes_per_modifier" />