Media Protocol Device Path; Media Protocol Media Device Path; File Path Media Device Path - Intel Extensible Firmware Interface Specification

Extensible Firmware Interface Specification

5.3.5.4 File Path Media Device Path

Table 5-25. File Path Media Device Path
Mnemonic
Type
Sub-Type
Length
Path Name

5.3.5.5 Media Protocol Device Path

The Media Protocol Device Path is used to denote the protocol that is being used in a device path at
the location of the path specified. Many protocols are inherent to the style of device path.
Table 5-26. Media Protocol Media Device Path
Mnemonic
Type
Sub-Type
Length
Protocol GUID
132
Byte Byte
Offset Length Description
0 1 Type 4 – Media Device Path.
1 1 Sub-Type 4 – File Path.
2 2 Length of this structure in bytes. Length is 4 + n bytes.
4 n Unicode Path string including directory and file names. The
length of this string
from the Length entry. A device path may contain one or
more of these nodes. The complete path to a file can be
found by concatenating all the File Path Media Device Path
nodes. This is typically used to describe the directory path
in one node, and the filename in another node.
Byte Byte
Offset Length Description
0 1 Type 4 – Media Device Path.
1 1 Sub-Type 5 – Media Protocol.
2 2 Length of this structure in bytes. Length is 20 bytes.
4 16 The ID of the protocol.
12/12/00
n can be determined by subtracting 4
Version 1.02