pcilib

pcilib(7)                      The PCI Utilities                     pcilib(7)



NAME
       pcilib - a library for accessing PCI devices


DESCRIPTION
       The PCI library (also known as pcilib and libpci) is a portable library
       for accessing PCI devices and their configuration space.


ACCESS METHODS
       The library supports a variety of methods to access the configuration
       space on different operating systems. By default, the first matching
       method in this list is used, but you can specify override the decision
       (see the -A switch of lspci).


       linux-sysfs
              The /sys filesystem on Linux 2.6 and newer. The standard header
              of the config space is available to all users, the rest only to
              root. Supports extended configuration space, PCI domains, VPD
              (from Linux 2.6.26), physical slots (also since Linux 2.6.26)
              and information on attached kernel drivers.

       linux-proc
              The /proc/bus/pci interface supported by Linux 2.1 and newer.
              The standard header of the config space is available to all
              users, the rest only to root.

       intel-conf1
              Direct hardware access via Intel configuration mechanism 1.
              Available on i386 and compatibles on Linux, Solaris/x86, GNU
              Hurd, Windows, BeOS and Haiku. Requires root privileges.

       intel-conf2
              Direct hardware access via Intel configuration mechanism 2.
              Available on i386 and compatibles on Linux, Solaris/x86, GNU
              Hurd, Windows, BeOS and Haiku. Requires root privileges.
              Warning: This method is able to address only the first 16
              devices on any bus and it seems to be very unreliable in many
              cases.

       fbsd-device
              The /dev/pci device on FreeBSD. Requires root privileges.

       aix-device
              Access method used on AIX. Requires root privileges.

       nbsd-libpci
              The /dev/pci0 device on NetBSD accessed using the local libpci
              library.

       obsd-device
              The /dev/pci device on OpenBSD. Requires root privileges.

       dump   Read the contents of configuration registers from a file
              specified in the dump.name parameter. The format corresponds to
              the output of lspci -x.

       darwin Access method used on Mac OS X / Darwin. Must be run as root and
              the system must have been booted with debug=0x144.


PARAMETERS
       The library is controlled by several parameters. They should have
       sensible default values, but in case you want to do something unusual
       (or even something weird), you can override them (see the -O switch of
       lspci).


   Parameters of specific access methods
       dump.name
              Name of the bus dump file to read from.

       fbsd.path
              Path to the FreeBSD PCI device.

       nbsd.path
              Path to the NetBSD PCI device.

       obsd.path
              Path to the OpenBSD PCI device.

       proc.path
              Path to the procfs bus tree.

       sysfs.path
              Path to the sysfs device tree.


   Parameters for resolving of ID's via DNS
       net.domain
              DNS domain containing the ID database.

       net.cache_name
              Name of the file used for caching of resolved ID's.


   Parameters for resolving of ID's via UDEV's HWDB
       hwdb.disable
              Disable use of HWDB if set to a non-zero value.


SEE ALSO
       lspci(8), setpci(8), update-pciids(8)


AUTHOR
       The PCI Utilities are maintained by Martin Mares <mj@ucw.cz>.



pciutils-3.6.2                  12 August 2018                       pcilib(7)