<field type="CARD8" name="this_device_mode" enum="GrabMode" />
<field type="CARD8" name="other_device_mode" enum="GrabMode" />
<field type="CARD8" name="button" altenum="Grab" />
<field type="CARD8" name="this_device_mode" enum="GrabMode" />
<field type="CARD8" name="other_device_mode" enum="GrabMode" />
<field type="CARD8" name="button" altenum="Grab" />