Extensible Firmware Interface Specification
5.3.4.1 ATAPI Device Path
Table 5-9.
ATAPI Device Path
Mnemonic
Type
Sub-Type
Length
PrimarySecondary
SlaveMaster
Logical Unit Number
5.3.4.2 SCSI Device Path
Table 5-10. SCSI Device Path
Mnemonic
Type
Sub-Type
Length
Target ID
Logical Unit Number
5.3.4.3 Fibre Channel Device Path
Table 5-11. Fibre Channel Device Path
Mnemonic
Type
Sub-Type
Length
Reserved
World Wide Number
Logical Unit Number
124
Byte
Byte
Offset
Length
Description
0
1
Type 3 – Messaging Device Path
1
1
Sub-Type 1 – ATAPI
2
2
Length of this structure in bytes. Length is 8 bytes.
4
1
Set to zero for primary or one for secondary
5
1
Set to zero for master or one for slave mode
6
2
Logical Unit Number
Byte
Byte
Offset
Length
Description
0
1
Type 3 – Messaging Device Path
1
1
Sub-Type 2 – SCSI
2
2
Length of this structure in bytes. Length is 8 bytes.
4
2
Target ID on the SCSI bus, PUN
6
2
Logical Unit Number, LUN
Byte
Byte
Offset
Length
Description
0
1
Type 3 – Messaging Device Path
1
1
Sub-Type 3 – Fibre Channel
2
2
Length of this structure in bytes. Length is 24 bytes.
4
4
Reserved
8
8
Fibre Channel World Wide Number
16
8
Fibre Channel Logical Unit Number
12/12/00
Version 1.02
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