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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.