)
Values for HP Vectra EX-BIOS status:
 00h	successful
 02h	unsupported function
 04h	not serviced
 06h	done (no further processing should be performed on the ISR event)
 F2h	device is out of paper
 F4h	device is offline
 F6h	no more space for more drivers
 F8h	driver is busy
 FAh	bad parameter
 FEh	operation failed
Note:	status codes are always even; negative values (>= 80h) indicate errors
	  while positive values indicate exceptional conditions