Man Lspci en anglais
lspci(8)                       The PCI Utilities                      lspci(8)



 

NAME


       lspci - list all PCI devices

 

SYNOPSIS


       lspci [options]

 

DESCRIPTION






       lspci  is  a  utility for displaying information about all PCI buses in
       the system and all devices connected to them.

       By default, it shows a brief list of devices. Use the options described
       below  to  request  either a more verbose output or output intended for
       parsing by other programs.

       If you are going to report bugs in  PCI  device  drivers  or  in  lspci
       itself,  please  include  output  of "lspci -vvx" or even better "lspci
       -vvxxx" (however, see below for possible caveats).

       Some parts of the output, especially in the highly  verbose  modes,  is
       probably  intelligible  only  to experienced PCI hackers. For the exact
       definitions of the fields, please consult either the PCI specifications
       or the header.h and /usr/include/linux/pci.h include files.

       Access  to  some  parts of the PCI configuration space is restricted to
       root on many operating systems, so the features of lspci  available  to
       normal  users  are limited. However, lspci tries its best to display as
       much as available and mark all other information with  
       text.


 

OPTIONS


       -v     Be verbose and display detailed information about all devices.

       -vv    Be  very  verbose  and display more details. This level includes
              everything deemed useful.

       -vvv   Be even more verbose and  display  everything  we  are  able  to
              parse,  even  if it doesn't look interesting at all (e.g., unde-
              fined memory regions).

       -n     Show PCI vendor and device codes as numbers instead  of  looking
              them up in the PCI ID list.

       -nn    Show PCI vendor and device codes as both numbers and names.

       -x     Show  hexadecimal dump of the standard part of the configuration
              space (the first 64 bytes or 128 bytes for CardBus bridges).

       -xxx   Show hexadecimal dump of the whole PCI configuration  space.  It
              is  available only to root as several PCI devices crash when you
              try to read some parts of the config space (this behavior proba-
              bly  doesn't  violate  the  PCI standard, but it's at least very
              stupid). However, such devices are rare, so  you  needn't  worry
              much.

       -xxxx  Show hexadecimal dump of the extended (4096-byte) PCI configura-
              tion space available on PCI-X 2.0 and PCI Express buses.

       -b     Bus-centric view. Show all IRQ numbers and addresses as seen  by
              the cards on the PCI bus instead of as seen by the kernel.

       -t     Show  a tree-like diagram containing all buses, bridges, devices
              and connections between them.

       -s [[[[]:]]:][][.[]]
              Show only devices in the specified domain (in case your  machine
              has  several  host  bridges,  they can either share a common bus
              number space or each of them can address a  PCI  domain  of  its
              own;  domains  are numbered from 0 to ffff), bus (0 to ff), slot
              (0 to 1f) and function (0 to 7).  Each component of  the  device
              address  can be omitted or set to "*", both meaning "any value".
              All numbers are hexadecimal.  E.g., "0:" means  all  devices  on
              bus  0,  "0"  means  all functions of device 0 on any bus, "0.3"
              selects third function of device 0 on all buses and  ".4"  shows
              only the fourth function of each device.

       -d []:[]
              Show only devices with specified vendor and device ID. Both ID's
              are given in hexadecimal and may be omitted  or  given  as  "*",
              both meaning "any value".

       -i 
              Use        as    the    PCI    ID    list    instead    of
              /usr/share/misc/pci.ids.

       -m     Dump PCI device data in machine readable form (both  normal  and
              verbose  format  supported)  for easy parsing by scripts. Please
              don't use any other formats for this purpose, they are likely to
              change in the future versions of lspci.

       -D     Always  show  PCI  domain  numbers. By default, lspci suppresses
              them on machines which have only domain 0.

       -M     Invoke bus mapping mode which performs a thorough  scan  of  all
              PCI  devices,  including those behind misconfigured bridges etc.
              This option is available only to root and  it  gives  meaningful
              results  only if combined with direct hardware access mode (oth-
              erwise the results are identical to normal listing modes, modulo
              bugs  in lspci). Please note that the bus mapper doesn't support
              PCI domains and scans only domain 0.

       --version
              Shows lspci version. This option should be used stand-alone.


 

PCILIB AND ITS OPTIONS


       The PCI utilities use PCILIB (a portable  library  providing  platform-
       independent  functions  for  PCI configuration space access) to talk to
       the PCI cards. It supports the following access methods:


       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 and PCI domains.

       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 and Windows. Requires root privileges.

       intel_conf2
              Direct hardware access  via  Intel  configuration  mechanism  2.
              Available  on i386 and compatibles on Linux, Solaris/x86 and GNU
              Hurd. Requires root privileges. Warning: This method is able  to
              address only 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.


       By  default, PCILIB uses the first available access method and displays
       no debugging messages, but you can use the following switches  to  con-
       trol its behavior:


       -P 
              Force  use  of the linux_proc access method, using  instead
              of /proc/bus/pci.

       -H1    Use direct hardware access via Intel configuration mechanism  1.

       -H2    Use  direct hardware access via Intel configuration mechanism 2.

       -F 
              Extract all information from given  file  containing  output  of
              lspci  -x. This is very useful for analysis of user-supplied bug
              reports, because you can display the hardware  configuration  in
              any  way  you want without disturbing the user with requests for
              more dumps.

       -G     Increase debug level of the library.


 

FILES


       /usr/share/misc/pci.ids
              A list of all known PCI ID's (vendors, devices, classes and sub-
              classes).  Maintained at http://pciids.sourceforge.net/, use the
              update-pciids utility to download the most recent version.

       /proc/bus/pci
              An interface to PCI bus  configuration  space  provided  by  the
              post-2.1.82  Linux kernels. Contains per-bus subdirectories with
              per-card config space files and a devices file containing a list
              of all PCI devices.


 

SEE ALSO


       setpci(8), update-pciids(8)


 

AUTHOR


       The PCI Utilities are maintained by Martin Mares .



pciutils-2.2.4-pre4              30 July 2006                         lspci(8)