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PCITWEAK(1) PCITWEAK(1)
NAME
pcitweak - read/write PCI config space
SYNOPSIS
pcitweak -l
pcitweak -r PCI-ID [-b|-h] offset
pcitweak -w PCI-ID [-b|-h] offset value
DESCRIPTION
Pcitweak is a utility that can be used to examine or change registers
in the PCI configuration space. On most platforms pcitweak can only be
run by the root user.
OPTIONS
-l Probe the PCI buses and print a line for each detected device.
Each line contains the bus location (bus:device:function), chip
vendor/device, card (subsystem) vendor/card, revision, class
and header type. All values printed are in hexadecimal.
-r PCI-ID
Read the PCI configuration space register at offset for the PCI
device at bus location PCI-ID. PCI-ID should be given in the
form bus:device:function, with each value in hexadecimal. By
default, a 32-bit register is read.
-w PCI-ID
Write value to the PCI configuration space register at offset
for the PCI device at bus location PCI-ID. PCI-ID should be
given in the form bus:device:function, with each value in hexa-
decimal. By default, a 32-bit register is written.
-b Read or write an 8-bit value (byte).
-h Read or write a 16-bit value (halfword).
SEE ALSO
scanpci(1)
AUTHORS
David Dawes (dawes@xfree86.org).
X.Org Version 6.9.0 PCITWEAK(1)
Man(1) output converted with
man2html and wrapped by fishsponge
This page was generated on Wed Sep 19 20:02:44 BST 2007
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