Format of EDD v3.0 Device Path:
Offset	Size	Description	)
---ATA---
 00h	BYTE	flag: 00h = master, 01h = slave
 01h  7 BYTEs	reserved (0)
---ATAPI---
 00h	BYTE	flag: 00h = master, 01h = slave
 01h	BYTE	logical unit number
 02h  6 BYTEs	reserved (0)
---SCSI---
 00h	BYTE	logical unit number
 01h  7 BYTEs	reserved (0)
---USB---
 00h	BYTE	to be determined
 01h  7 BYTEs	reserved (0)
---IEEE1394---
 00h	QWORD	64-bit FireWire General Unique Identifier (GUID)
---FibreChannel---
 00h	QWORD	Word Wide Number (WWN)
SeeAlso: #00273,#00275