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4284af58 1.TH lspci 8 "@TODAY@" "@VERSION@" "The PCI Utilities"
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2.IX lspci
3.SH NAME
4lspci \- list all PCI devices
5.SH SYNOPSIS
6.B lspci
7.RB [ options ]
8.SH DESCRIPTION
9.B lspci
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10is a utility for displaying information about all PCI buses in the system and
11all devices connected to them.
12
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13If you are going to report bugs in PCI device drivers or in
14.I lspci
15itself, please include output of "lspci -vvx".
16
17.SH OPTIONS
18.TP
19.B -v
20Tells
21.I lspci
22to be verbose and display detailed information about all devices.
23.TP
24.B -vv
25Tells
26.I lspci
27to be very verbose and display even more information (actually everything the
28PCI device is able to tell). The exact meaning of these data is not explained
29in this manual page, if you want to know more, consult
30.B /usr/include/linux/pci.h
31or the PCI specs.
32.TP
33.B -n
34Show PCI vendor and device codes as numbers instead of looking them up in the
35PCI ID database.
36.TP
37.B -x
38Show hexadecimal dump of first 64 bytes of the PCI configuration space (the standard
39header). Useful for debugging of drivers and
40.I lspci
41itself.
42.TP
472bd340 43.B -xxx
2f48f637 44Show hexadecimal dump of whole PCI configuration space. Available only for root
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45as several PCI devices
46.B crash
47when you try to read undefined portions of the config space (this behaviour probably
48doesn't violate the PCI standard, but it's at least very stupid).
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49.TP
50.B -b
51Bus-centric view. Show all IRQ numbers and addresses as seen by the cards on the
52PCI bus instead of as seen by the kernel.
53.TP
54.B -t
727ce158 55Show a tree-like diagram containing all buses, bridges, devices and connections
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56between them.
57.TP
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58.B -s [[<bus>]:][<slot>][.[<func>]]
59Show only devices in specified bus, slot and function. Each component of the device
60address can be omitted or set as "*" meaning "any value". All numbers are
61hexadecimal. E.g., "0:" means all devices on bus 0, "0" means all functions of device 0
727ce158 62on any bus, "0.3" selects third function of device 0 on all buses and ".4" shows only
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63fourth function of each device.
64.TP
65.B -d [<vendor>]:[<device>]
66Show only devices with specified vendor and device ID. Both ID's are given in
67hexadecimal and may be omitted or given as "*" meaning "any value".
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68.TP
69.B -i <file>
70Use
71.B
72<file>
4063c31c 73as PCI ID database instead of @SHAREDIR@/pci.ids.
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74.TP
75.B -p <dir>
76Use
77.B <dir>
78as directory containing PCI bus information instead of /proc/bus/pci.
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79.TP
80.B -m
81Dump PCI device data in machine readable form (both normal and verbose format supported)
82for easy parsing by scripts.
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83.TP
84.B -M
85Invoke bus mapping mode which scans the bus extensively to find all devices including
86those behind misconfigured bridges etc. Please note that this is intended only for
87debugging and as it can crash the machine (only in case of buggy devices, but
88unfortunately these happen to exist), it's available only to root. Also using
89-M on PCI access methods which don't directly touch the hardware has no
90sense since the results are (modulo bugs in lspci) identical to normal listing
91modes.
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92.TP
93.B --version
94Shows
95.I lspci
96version. This option should be used standalone.
2f48f637 97
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98.SH PCILIB OPTIONS
99The PCI utilities use PCILIB (a portable library providing platform-independent
100functions for PCI configuration space access) to talk to the PCI cards. The following
101options control parameters of the library, especially what access method it uses.
102By default, PCILIB uses the first available access method and displays no debugging
103messages. Each switch is accompanied by a list of hardware/software configurations
104it's supported in.
105
106.TP
107.B -P <dir>
9f3d182f 108Force use of Linux /proc/bus/pci style configuration access, using
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109.B <dir>
110instead of /proc/bus/pci. (Linux 2.1 or newer only)
111.TP
112.B -H1
113Use direct hardware access via Intel configuration mechanism 1. (i386 and compatible only)
114.TP
115.B -H2
116Use direct hardware access via Intel configuration mechanism 2. Warning: This method
117is able to address only first 16 devices on any bus and it seems to be very
118unrealiable in many cases. (i386 and compatible only)
119.TP
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120.B -F <file>
121Extract all information from given file containing output of lspci -x. This is very
122useful for analysis of user-supplied bug reports, because you can display the
123hardware configuration in any way you want without disturbing the user with
124requests for more dumps. (All systems)
125.TP
126.B -G
127Increase debug level of the library. (All systems)
128
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129.SH FILES
130.TP
e2875dcd 131.B @SHAREDIR@/pci.ids
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132A list of all known PCI ID's (vendors, devices, classes and subclasses).
133.TP
134.B /proc/bus/pci
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135An interface to PCI bus configuration space provided by the post-2.1.82 Linux
136kernels. Contains per-bus subdirectories with per-card config space files and a
137.I devices
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138file containing a list of all PCI devices.
139
727ce158 140.SH SEE ALSO
1b95f396 141.BR setpci (8), update-pciids (8)
727ce158 142
2f48f637 143.SH AUTHOR
4284af58 144The PCI Utilities are maintained by Martin Mares <mj@ucw.cz>.