pcilib(7) — Linux manual page

NAME | DESCRIPTION | ACCESS METHODS | PARAMETERS | SEE ALSO | AUTHOR | COLOPHON

pcilib(7)                   The PCI Utilities                  pcilib(7)

NAME         top

       pcilib - a library for accessing PCI devices

DESCRIPTION         top

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

ACCESS METHODS         top

       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         top

       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         top

       lspci(8), setpci(8), pci.ids(5), update-pciids(8)

AUTHOR         top

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

COLOPHON         top

       This page is part of the pciutils (PCI utilities) project.
       Information about the project can be found at 
       ⟨http://mj.ucw.cz/sw/pciutils/⟩.  If you have a bug report for
       this manual page, send it to linux-pci@vger.kernel.org.  This
       page was obtained from the project's upstream Git repository
       ⟨git://git.kernel.org/pub/scm/utils/pciutils/pciutils.git⟩ on
       2021-06-20.  (At that time, the date of the most recent commit
       that was found in the repository was 2020-12-06.)  If you
       discover any rendering problems in this HTML version of the page,
       or you believe there is a better or more up-to-date source for
       the page, or you have corrections or improvements to the
       information in this COLOPHON (which is not part of the original
       manual page), send a mail to man-pages@man7.org

pciutils-3.6.4               25 January 2020                   pcilib(7)

Pages that refer to this page: pci.ids(5)lspci(8)setpci(8)