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T13/2132-D Revision 3 June 23, 2010
52 Working Draft Enhanced Disk Drive - 4 (EDD-4)
Table 24 — Device Path Definitions
(part 1 of 2)
Interface Type Offset Type Definition
ATA 56 Byte
Value Description
00h ATA Device 0
01h ATA Device 1
02h..FFh Reserved
57 Byte Reserved
58 Word Reserved
60 DWord Reserved
64 QWord Reserved
ATAPI 56 Byte
Value Description
00h ATAPI Device 0
01h ATAPI Device 1
02h..FFh Reserved
57 Byte Logical Unit Number
58 Byte Reserved
59 Byte Reserved
60 DWord Reserved
64 QWord Reserved
SCSI 56 Word Physical Unit Number/SCSI ID
58 QWord Logical Unit Number
66 Word Reserved
68 DWord Reserved
USB 56 QWord 64-bit Serial Number as defined in the USB Mass Storage specifications
64 QWord Reserved
1394 56 QWord 64-bit Extended Unique Identifier (EUI-64)
64 QWord Reserved
FIBRE 56 QWord 64-bit Worldwide Identifier (WWID)
64 QWord Logical Unit Number
I
2
O 56 QWord 64-bit Identity Tag
64 QWord Reserved
RAID 56 DWord RAID array number of which this device is a member
60 DWord Reserved.
64 QWord Reserved