xfree86 man page for scanpci

SCANPCI(1)						      General Commands Manual							SCANPCI(1)

NAME
       scanpci - scan/probe PCI buses

SYNOPSIS
       scanpci [-v12OfV]

DESCRIPTION
       Scanpci	is a utility that can be used to scan PCI buses and report information about the configuration space settings for each PCI device.
       On most platforms, scanpci can only be run by the root user.

OPTIONS
       -v      Print the configuration space information for each device in a verbose format.  Without this option, only a  brief  description	is
	       printed for each device.

       -x      Show hexadecimal dump of the first 64 bytes of each PCI device's configuration space.  For CardBus bridges, the first 128 bytes are
	       dumped instead.	This option can be repeated to dump all 256 or 4096 bytes, but doing so might cause scanpci  (or  the  system)	to
	       crash because some devices cannot tolerate reads of undefined portions of their configuration space.

       -1      Use PCI config type 1.

       -2      Use PCI config type 2.

       -f      Used in conjunction with the above two options, this forces the specified configuration type to be used for config space access.

       -O      Use the OS's PCI config space access mechanism to access the PCI config space (when available).

       -V n    Set the verbosity level to n for the internal PCI scanner.  This is primarily for debugging use.

SEE ALSO
       pcitweak(1)

AUTHORS
XFree86 							   Version 4.7.0							SCANPCI(1)