Format of HP Vectra HP-HIL physical device status table:
Offset	Size	Description	)
 00h	BYTE	status for HP-HIL device #1bit 0: device present
		bit 0: device present
		bits 7-2 reserved
 01h	BYTE	device ID for HP-HIL device #1..
	...
 0Ch	BYTE	status for HP-HIL device #7Dh	BYTE	device ID for HP-HIL device #7------b-6F08--BP005A
 0Dh	BYTE	device ID for HP-HIL device #7------b-6F08--BP005A