{TAIL ~ This power state change} is communicated by the device controller to a device driver in {HEAD ~ response} to the device removal signal 
{ TAIL ~ This power state change } is communicated by the device controller to a device driver in { HEAD ~ response } to the device removal signal
TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH