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lspci(8)			       Linux PCI Utilities				 lspci(8)

       lspci - list all PCI devices

       lspci [options]

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

       To make use of all the features of this program, you need to have Linux kernel  2.1.82  or
       newer  which  supports  the /proc/bus/pci interface. With older kernels, the PCI utilities
       have to use direct hardware access which is available only to root  and	it  suffers  from
       numerous race conditions and other problems.

       If  you	are going to report bugs in PCI device drivers or in lspci itself, please include
       output of "lspci -vvx".

       -v     Tells lspci to be verbose and display detailed information about all devices.

       -vv    Tells lspci to be very verbose and display even more information	(actually  every-
	      thing  the  PCI  device  is  able  to tell). The exact meaning of these data is not
	      explained  in  this  manual   page,   if	 you   want   to   know   more,   consult
	      /usr/include/linux/pci.h or the PCI specs.

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

       -x     Show hexadecimal dump of first 64 bytes of the PCI configuration space  (the  stan-
	      dard header). Useful for debugging of drivers and lspci itself.

       -xxx   Show  hexadecimal dump of whole PCI configuration space. Available only for root as
	      several PCI devices crash when you try to read undefined	portions  of  the  config
	      space  (this behaviour probably doesn't violate the PCI standard, but it's at least
	      very stupid).

       -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 [[<bus>]:][<slot>][.[<func>]]
	      Show only devices in specified bus, slot and function. Each component of the device
	      address can be omitted or set as "*" meaning "any value". All numbers are hexadeci-
	      mal.  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
	      fourth function of each device.

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

       -i <file>
	      Use <file> as PCI ID database instead of /usr/share/hwdata/pci.ids.

       -p <dir>
	      Use <dir> as directory containing PCI bus information instead of /proc/bus/pci.

       -m     Dump  PCI device data in machine readable form (both normal and verbose format sup-
	      ported) for easy parsing by scripts.

       -M     Invoke bus mapping mode which scans the bus extensively to find all devices includ-
	      ing  those behind misconfigured bridges etc. Please note that this is intended only
	      for debugging and as it can crash the machine (only in case of buggy  devices,  but
	      unfortunately these happen to exist), it's available only to root. Also using -M on
	      PCI access methods which don't directly touch the hardware has no sense  since  the
	      results are (modulo bugs in lspci) identical to normal listing modes.

	      Shows lspci version. This option should be used standalone.

       The  PCI utilities use PCILIB (a portable library providing platform-independent functions
       for PCI configuration space access) to talk to the PCI cards. The following  options  con-
       trol parameters of the library, especially what access method it uses.  By default, PCILIB
       uses the first available access method and displays no debugging messages. Each switch  is
       accompanied by a list of hardware/software configurations it's supported in.

       -P <dir>
	      Use   Linux   2.1   style  configuration	access	to  directory  <dir>  instead  of
	      /proc/bus/pci. (Linux 2.1 or newer only)

       -H1    Use direct hardware access via Intel configuration mechanism 1. (i386 and  compati-
	      ble only)

       -H2    Use  direct  hardware  access  via  Intel  configuration mechanism 2. Warning: This
	      method is able to address only first 16 devices on any bus and it seems to be  very
	      unrealiable in many cases. (i386 and compatible only)

       -S     Use PCI access syscalls. (Linux on Alpha and UltraSparc only)

       -F <file>
	      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 hard-
	      ware  configuration  in  any way you want without disturbing the user with requests
	      for more dumps. (All systems)

       -G     Increase debug level of the library. (All systems)

	      A list of all known PCI ID's (vendors, devices, classes and subclasses).

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


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

pciutils-2.1.10 			  30 March 2002 				 lspci(8)
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