Intel Extensible Firmware Interface, Specification

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Extensible Firmware Interface Specification
350 12/12/00 Version 1.02
Table E-1. Functions Listed in Alphabetic Order (continued)
Function Name Service or Protocol Sub-Service Function Description
MetaiMatch Unicode Collation
Protocol Performs a case insensitive
comparison between a Unicode
pattern string and a Unicode
string.
Mtftp PXE Base Code
Protocol Is used to perform TFTP and
MTFTP services.
NVData Simple Network
Protocol Allows read and writes to the
NVRAM device attached to a
network interface.
Open File System Protocol Opens or creates a new file.
OpenVolume Simple File System
Protocol Opens the volume for file I/O
access.
OutputString Simple Text Output
Protocol Displays the Unicode string on the
device at the current cursor
location.
Pci.Read Device I/O Protocol Reads from PCI Configuration
Space.
Pci.Write Device I/O Protocol Writes to PCI Configuration
Space.
PciDevicePath Device I/O Protocol Provides an EFI Device Path for a
PCI device with the given PCI
configuration space address.
QueryMode Simple Text Output
Protocol Queries information concerning
the output device’s supported text
mode.
RaiseTPL Boot Services Task Priority
Services Raises the task priority level.
Read File System Protocol Reads bytes from a file.
Read Serial I/O Protocol Receives a buffer of characters
from a serial device.
ReadBlocks Block I/O Protocol Reads the requested number of
blocks from the device.
ReadDisk Disk I/O Protocol Reads data from the disk.
ReadKeyStroke Simple Input
Protocol Reads a keystroke from a simple
input device.
Receive Simple Network
Protocol Receives a packet from the
network interface.
RegisterProtocolNotify Boot Services Protocol Handler
Services Registers for protocol interface
installation notifications
continued