<field type="CARD8" name="modifier_device" />
<field type="CARD8" name="button" altenum="Grab" />
<field type="CARD8" name="grabbed_device" />
<field type="CARD8" name="modifier_device" />
<field type="CARD8" name="button" altenum="Grab" />
<field type="CARD8" name="grabbed_device" />