.TH lspci 8 "@TODAY@" "@VERSION@" "The PCI Utilities"
-.IX lspci
.SH NAME
lspci \- list all PCI devices
.SH SYNOPSIS
.RB [ options ]
.SH DESCRIPTION
.B lspci
-is a utility for displaying information about all PCI buses in the system and
-all devices connected to them.
+is a utility for displaying information about PCI buses in the system and
+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
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
+Some parts of the output, especially in the highly verbose modes, are probably
+intelligible only to experienced PCI hackers. For exact definitions of
the fields, please consult either the PCI specifications or the
.B header.h
and
text.
.SH OPTIONS
+
+.SS Basic display modes
+.TP
+.B -m
+Dump PCI device data in a backward-compatible machine readable form.
+See below for details.
+.TP
+.B -mm
+Dump PCI device data in a machine readable form for easy parsing by scripts.
+See below for details.
+.TP
+.B -t
+Show a tree-like diagram containing all buses, bridges, devices and connections
+between them.
+
+.SS Display options
.TP
.B -v
Be verbose and display detailed information about all devices.
Be even more verbose and display everything we are able to parse,
even if it doesn't look interesting at all (e.g., undefined memory regions).
.TP
-.B -n
-Show PCI vendor and device codes as numbers instead of looking them up in the
-PCI ID list.
-.TP
-.B -nn
-Show PCI vendor and device codes as both numbers and names.
+.B -k
+Show kernel drivers handling each device and also kernel modules capable of handling it.
+Turned on by default when
+.B -v
+is given in the normal mode of output.
+(Currently works only on Linux with kernel 2.6 or newer.)
.TP
.B -x
Show hexadecimal dump of the standard part of the configuration space (the first
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.
.TP
-.B -t
-Show a tree-like diagram containing all buses, bridges, devices and connections
-between them.
+.B -D
+Always show PCI domain numbers. By default, lspci suppresses them on machines which
+have only domain 0.
.TP
-.B -s [[[[<domain>]:]<bus>]:][<slot>][.[<func>]]
+.B -P
+Identify PCI devices by path through each bridge, instead of by bus number.
+.TP
+.B -PP
+Identify PCI devices by path through each bridge, showing the bus number as
+well as the device number.
+
+.SS Options to control resolving ID's to names
+.TP
+.B -n
+Show PCI vendor and device codes as numbers instead of looking them up in the
+PCI ID list.
+.TP
+.B -nn
+Show PCI vendor and device codes as both numbers and names.
+.TP
+.B -q
+Use DNS to query the central PCI ID database if a device is not found in the local
+.B pci.ids
+file. If the DNS query succeeds, the result is cached in
+.B $XDG_CACHE_HOME/pci-ids
+and it is recognized in subsequent runs even if
+.B -q
+is not given any more. Please use this switch inside automated scripts only
+with caution to avoid overloading the database servers.
+.TP
+.B -qq
+Same as
+.BR -q ,
+but the local cache is reset.
+.TP
+.B -Q
+Query the central database even for entries which are recognized locally.
+Use this if you suspect that the displayed entry is wrong.
+
+.SS Options for selection of devices
+.TP
+.B -s [[[[<domain>]:]<bus>]:][<device>][.[<func>]]
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).
+of its own; domains are numbered from 0 to ffff), bus (0 to ff), device (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.
.TP
-.B -d [<vendor>]:[<device>]
-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".
+.B -d [<vendor>]:[<device>][:<class>[:<prog-if>]]
+Show only devices with specified vendor, device, class ID, and programming interface.
+The ID's are given in hexadecimal and may be omitted or given as "*", both meaning
+"any value". The class ID can contain "x" characters which stand for "any digit".
+
+.SS Other options
.TP
.B -i <file>
Use
<file>
as the PCI ID list instead of @IDSDIR@/pci.ids.
.TP
-.B -m
-Dump PCI device data in a backward-compatible machine readable form.
-See below for details.
-.TP
-.B -mm
-Dump PCI device data in a machine readable form for easy parsing by scripts.
-See below for details.
-.TP
-.B -D
-Always show PCI domain numbers. By default, lspci suppresses them on machines which
-have only domain 0.
+.B -p <file>
+Use
+.B
+<file>
+as the map of PCI ID's handled by kernel modules. By default, lspci uses
+.RI /lib/modules/ kernel_version /modules.pcimap.
+Applies only to Linux systems with recent enough module tools.
.TP
.B -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 (otherwise
-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.
+those behind misconfigured bridges, etc. This option gives meaningful results only
+with a direct hardware access mode, which usually requires root privileges.
+By default, the bus mapper scans domain. You can use the
+.B -s
+option to select a different domain.
.TP
.B --version
Shows
.I lspci
version. This option should be used stand-alone.
-.SH 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:
-
+.SS PCI access options
+.PP
+The PCI utilities use the PCI library to talk to PCI devices (see
+\fBpcilib\fP(7) for details). You can use the following options to
+influence its behavior:
.TP
-.B linux_sysfs
-The
-.B /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.
-.TP
-.B linux_proc
-The
-.B /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.
-.TP
-.B 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.
-.TP
-.B 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.
-.TP
-.B fbsd_device
-The
-.B /dev/pci
-device on FreeBSD. Requires root privileges.
-.TP
-.B aix_device
-Access method used on AIX. Requires root privileges.
-.TP
-.B nbsd_libpci
-The
-.B /dev/pci0
-device on NetBSD accessed using the local libpci library.
-
-.P
-By default, PCILIB uses the first available access method and displays no debugging
-messages, but you can use the following switches to control its behavior:
-
+.B -A <method>
+The library supports a variety of methods to access the PCI hardware.
+By default, it uses the first access method available, but you can use
+this option to override this decision. See \fB-A help\fP for a list of
+available methods and their descriptions.
.TP
-.B -P <dir>
-Force use of the linux_proc access method, using
-.B <dir>
-instead of /proc/bus/pci.
+.B -O <param>=<value>
+The behavior of the library is controlled by several named parameters.
+This option allows one to set the value of any of the parameters. Use \fB-O help\fP
+for a list of known parameters and their default values.
.TP
.B -H1
Use direct hardware access via Intel configuration mechanism 1.
+(This is a shorthand for \fB-A intel-conf1\fP.)
.TP
.B -H2
Use direct hardware access via Intel configuration mechanism 2.
+(This is a shorthand for \fB-A intel-conf2\fP.)
.TP
.B -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
-hardware configuration in any way you want without disturbing the user with
+Instead of accessing real hardware, read the list of devices and values of their
+configuration registers from the given file produced by an earlier run 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.
.TP
.B -G
.B SDevice
Name of the subsystem (optional).
+.TP
+.B PhySlot
+The physical slot where the device resides (optional, Linux only).
+
.TP
.B Rev
Revision number (optional).
.B ProgIf
Programming interface (optional).
+.TP
+.B Driver
+Kernel driver currently handling the device (optional, Linux only).
+
+.TP
+.B Module
+Kernel module reporting that it is capable of handling the device
+(optional, Linux only). Multiple lines with this tag can occur.
+
+.TP
+.B NUMANode
+NUMA node this device is connected to (optional, Linux only).
+
+.TP
+.B IOMMUGroup
+IOMMU group that this device is part of (optional, Linux only).
+
.P
New tags can be added in future versions, so you should silently ignore any tags you don't recognize.
.TP
.B @IDSDIR@/pci.ids
A list of all known PCI ID's (vendors, devices, classes and subclasses). Maintained
-at http://pciids.sourceforge.net/, use the
+at https://pci-ids.ucw.cz/, use the
.B update-pciids
utility to download the most recent version.
.TP
.B @IDSDIR@/pci.ids.gz
If lspci is compiled with support for compression, this file is tried before pci.ids.
.TP
-.B /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
-.I devices
-file containing a list of all PCI devices.
+.B $XDG_CACHE_HOME/pci-ids
+All ID's found in the DNS query mode are cached in this file.
.SH BUGS
.SH SEE ALSO
.BR setpci (8),
-.BR update-pciids (8)
+.BR pci.ids (5),
+.BR update-pciids (8),
+.BR pcilib (7)
.SH AUTHOR
The PCI Utilities are maintained by Martin Mares <mj@ucw.cz>.
projects / thirdparty / pciutils.git / blobdiff