Usb Class Device Path; I O Device Path; Mac Address Device Path - Intel Extensible Firmware Interface Specification

Extensible Firmware Interface Specification

5.3.4.6 USB Class Device Path

Table 5-14. USB Class Device Path
Mnemonic
Type
Sub-Type
Length
Vendor ID
Product ID
Device Class
Device Subclass
Device Protocol
5.3.4.7 I O Device Path
2
Table 5-15. I O Device Path
2
Mnemonic
Type
Sub-Type
Length
TID

5.3.4.8 MAC Address Device Path

Table 5-16. MAC Address Device Path
Mnemonic
Type
Sub-Type
Length
MAC Address
IfType
126
Byte Byte
Offset Length Description
0 1 Type 3 - Messaging Device Path
1 1 Sub-Type 15 - USB Class
2 2 Length of this structure in bytes. Length is 11 bytes.
4 2 Vendor ID assigned by USB-IF. A value of 0xFFFF will
match any Vendor ID.
6 2 Product ID assigned by USB-IF. A value of 0xFFFF will
match any Product ID.
8 1 The class code assigned by the USB-IF. A value of 0xFF
will match any class code.
9 1 The subclass code assigned by the USB-IF. A value of
0xFF will match any subclass code.
10 1 The protocol code assigned by the USB-IF. A value of 0xFF
will match any protocol code.
Byte Byte
Offset Length Description
0 1 Type 3 – Messaging Device Path
1 1 Sub-Type 6 – I2O Random Block Storage Class
2 2 Length of this structure in bytes. Length is 8 bytes.
4 4 Target ID (TID) for a device
Byte Byte
Offset Length Description
0 1 Type 3 – Messaging Device Path
1 1 Sub-Type 11 – MAC Address for a network interface
2 2 Length of this structure in bytes. Length is 37 bytes.
4 32 The MAC address for a network interface padded with 0s
36 1 Network interface type(i.e. 802.3, FDDI). See RFC 1700
12/12/00 Version 1.02