lspci.man

   1 .TH lspci 8 "@TODAY@" "@VERSION@" "The PCI Utilities"
   2 .IX lspci
   3 .SH NAME
   4 lspci \- list all PCI devices
   5 .SH SYNOPSIS
   6 .B lspci
   7 .RB [ options ]
   8 .SH DESCRIPTION
   9 .B lspci
  10 is a utility for displaying information about all PCI buses in the system and
  11 all devices connected to them.
  12
  13 By default, it shows a brief list of devices. Use the options described
  14 below to request either a more verbose output or output intended for
  15 parsing by other programs.
  16
  17 If you are going to report bugs in PCI device drivers or in
  18 .I lspci
  19 itself, please include output of "lspci -vvx" or even better "lspci -vvxxx"
  20 (however, see below for possible caveats).
  21
  22 Some parts of the output, especially in the highly verbose modes, is probably
  23 intelligible only to experienced PCI hackers. For the exact definitions of
  24 the fields, please consult either the PCI specifications or the
  25 .B header.h
  26 and
  27 .B /usr/include/linux/pci.h
  28 include files.
  29
  30 Access to some parts of the PCI configuration space is restricted to root
  31 on many operating systems, so the features of
  32 .I lspci
  33 available to normal users are limited. However,
  34 .I lspci
  35 tries its best to display as much as available and mark all other
  36 information with
  37 .I <access denied>
  38 text.
  39
  40 .SH OPTIONS
  41 .TP
  42 .B -v
  43 Be verbose and display detailed information about all devices.
  44 .TP
  45 .B -vv
  46 Be very verbose and display more details. This level includes everything deemed
  47 useful.
  48 .TP
  49 .B -vvv
  50 Be even more verbose and display everything we are able to parse,
  51 even if it doesn't look interesting at all (e.g., undefined memory regions).
  52 .TP
  53 .B -n
  54 Show PCI vendor and device codes as numbers instead of looking them up in the
  55 PCI ID list.
  56 .TP
  57 .B -x
  58 Show hexadecimal dump of the standard part of the configuration space (the first
  59 64 bytes or 128 bytes for CardBus bridges).
  60 .TP
  61 .B -xxx
  62 Show hexadecimal dump of the whole PCI configuration space. It is available only to root
  63 as several PCI devices
  64 .B crash
  65 when you try to read some parts of the config space (this behavior probably
  66 doesn't violate the PCI standard, but it's at least very stupid). However, such
  67 devices are rare, so you needn't worry much.
  68 .TP
  69 .B -xxxx
  70 Show hexadecimal dump of the extended (4096-byte) PCI configuration space available
  71 on PCI-X 2.0 and PCI Express buses.
  72 .TP
  73 .B -b
  74 Bus-centric view. Show all IRQ numbers and addresses as seen by the cards on the
  75 PCI bus instead of as seen by the kernel.
  76 .TP
  77 .B -t
  78 Show a tree-like diagram containing all buses, bridges, devices and connections
  79 between them.
  80 .TP
  81 .B -s [[[[<domain>]:]<bus>]:][<slot>][.[<func>]]
  82 Show only devices in the specified domain (in case your machine has several host bridges,
  83 they can either share a common bus number space or each of them can address a PCI domain
  84 of its own; domains are numbered from 0 to ffff), bus (0 to ff), slot (0 to 1f) and function (0 to 7).
  85 Each component of the device address can be omitted or set to "*", both meaning "any value". All numbers are
  86 hexadecimal.  E.g., "0:" means all devices on bus 0, "0" means all functions of device 0
  87 on any bus, "0.3" selects third function of device 0 on all buses and ".4" shows only
  88 the fourth function of each device.
  89 .TP
  90 .B -d [<vendor>]:[<device>]
  91 Show only devices with specified vendor and device ID. Both ID's are given in
  92 hexadecimal and may be omitted or given as "*", both meaning "any value".
  93 .TP
  94 .B -i <file>
  95 Use
  96 .B
  97 <file>
  98 as the PCI ID list instead of @SHAREDIR@/pci.ids.
  99 .TP
 100 .B -m
 101 Dump PCI device data in machine readable form (both normal and verbose format supported)
 102 for easy parsing by scripts.
 103 .TP
 104 .B -M
 105 Invoke bus mapping mode which performs a thorough scan of all PCI devices, including
 106 those behind misconfigured bridges etc. This option is available only to root and it
 107 gives meaningful results only if combined with direct hardware access mode (otherwise
 108 the results are identical to normal listing modes, modulo bugs in lspci). Please note
 109 that the bus mapper doesn't support PCI domains and scans only domain 0.
 110 .TP
 111 .B --version
 112 Shows
 113 .I lspci
 114 version. This option should be used stand-alone.
 115
 116 .SH PCILIB AND ITS OPTIONS
 117 The PCI utilities use PCILIB (a portable library providing platform-independent
 118 functions for PCI configuration space access) to talk to the PCI cards. It supports
 119 the following access methods:
 120
 121 .TP
 122 .B linux_sysfs
 123 The
 124 .B /sys
 125 filesystem on Linux 2.6 and newer. The standard header of the config space is available
 126 to all users, the rest only to root. Supports extended configuration space and PCI domains.
 127 .TP
 128 .B linux_proc
 129 The
 130 .B /proc/bus/pci
 131 interface supported by Linux 2.1 and newer. The standard header of the config space is available
 132 to all users, the rest only to root.
 133 .TP
 134 .B intel_conf1
 135 Direct hardware access via Intel configuration mechanism 1. Available on i386 and compatibles
 136 on Linux, Solaris/x86, GNU Hurd and Windows. Requires root privileges.
 137 .TP
 138 .B intel_conf2
 139 Direct hardware access via Intel configuration mechanism 2. Available on i386 and compatibles
 140 on Linux, Solaris/x86 and GNU Hurd. Requires root privileges. Warning: This method
 141 is able to address only first 16 devices on any bus and it seems to be very
 142 unreliable in many cases.
 143 .TP
 144 .B fbsd_device
 145 The
 146 .B /dev/pci
 147 device on FreeBSD. Requires root privileges.
 148 .TP
 149 .B aix_device
 150 Access method used on AIX. Requires root privileges.
 151 .TP
 152 .B nbsd_libpci
 153 The
 154 .B /dev/pci0
 155 device on NetBSD accessed using the local libpci library.
 156
 157 .P
 158 By default, PCILIB uses the first available access method and displays no debugging
 159 messages, but you can use the following switches to control its behavior:
 160
 161 .TP
 162 .B -P <dir>
 163 Force use of the linux_proc access method, using
 164 .B <dir>
 165 instead of /proc/bus/pci.
 166 .TP
 167 .B -H1
 168 Use direct hardware access via Intel configuration mechanism 1.
 169 .TP
 170 .B -H2
 171 Use direct hardware access via Intel configuration mechanism 2.
 172 .TP
 173 .B -F <file>
 174 Extract all information from given file containing output of lspci -x. This is very
 175 useful for analysis of user-supplied bug reports, because you can display the
 176 hardware configuration in any way you want without disturbing the user with
 177 requests for more dumps.
 178 .TP
 179 .B -G
 180 Increase debug level of the library.
 181
 182 .SH FILES
 183 .TP
 184 .B @SHAREDIR@/pci.ids
 185 A list of all known PCI ID's (vendors, devices, classes and subclasses). Maintained
 186 at http://pciids.sourceforge.net/, use the
 187 .B update-pciids
 188 utility to download the most recent version.
 189 .TP
 190 .B /proc/bus/pci
 191 An interface to PCI bus configuration space provided by the post-2.1.82 Linux
 192 kernels. Contains per-bus subdirectories with per-card config space files and a
 193 .I devices
 194 file containing a list of all PCI devices.
 195
 196 .SH SEE ALSO
 197 .BR setpci (8),
 198 .BR update-pciids (8)
 199
 200 .SH AUTHOR
 201 The PCI Utilities are maintained by Martin Mares <mj@ucw.cz>.