Intel Extensible Firmware Interface User Manual

Page 1028

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Extensible Firmware Interface Specification

K-18

12/01/02

Version 1.10

Table K-1. Functions Listed in Alphabetic Order

(continued)

Function Name

Service or Protocol Subservice Function

Description

UsbPortReset

USB I/O Protocol

Resets and reconfigures the USB
controller.

UsbSyncInterruptTransfer

USB I/O Protocol

Accesses the USB Device through
USB Synchronous Interrupt
Transfer Pipe.

VerifyBootObject Boot

Integrity

Services Protocol

Verifies a boot object according to
the supplied digital signature and
the current authorization certificate
and check flag setting.

VerifyObjectWithCredential

Boot Integrity
Services Protocol

Verifies a data object according to
a supplied digital signature and a
supplied digital certificate.

WaitForEvent Boot

Services Event

Services

Stops execution until an event is
signaled.

Write Debugport

Protocol

Send a buffer of characters to the
debugport device.

Write

File System Protocol

Writes bytes to a file.

Write Serial

I/O

Protocol

Sends a buffer of characters to a
serial device.

WriteBlocks

Block I/O Protocol

Writes the requested number of
blocks to the device.

WriteDisk

Disk I/O Protocol

Writes data to the disk.

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