pcitweak1x
Read/write pci config space
Usage
pcitweak -l
pcitweak -r
PCI-ID
[{-b | -h}]
offset
pcitweak -w
PCI-ID
[{-b | -h}]
offset
value
Overview
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 hexadecimal. 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).
Releases
2 releases since Debian 3.0 (Woody); the text changed 1 time.