1 .TH pcilib 7 "@TODAY@" "@VERSION@" "The PCI Utilities"
3 pcilib \- a library for accessing PCI devices
7 The PCI library (also known as \fIpcilib\fP and \fIlibpci\fP) is a portable library
8 for accessing PCI devices and their configuration space.
13 The library supports a variety of methods to access the configuration space
14 on different operating systems. By default, the first matching method in this
15 list is used, but you can specify override the decision (see the \fB-A\fP switch
22 filesystem on Linux 2.6 and newer. The standard header of the config space is available
23 to all users, the rest only to root. Supports extended configuration space, PCI domains,
24 VPD (from Linux 2.6.26), physical slots (also since Linux 2.6.26) and information on attached
30 interface supported by Linux 2.1 and newer. The standard header of the config space is available
31 to all users, the rest only to root.
34 Direct hardware access via Intel configuration mechanism 1. Available on i386 and compatibles
35 on Linux, Solaris/x86, GNU Hurd, Windows, BeOS and Haiku. Requires root privileges.
38 Direct hardware access via Intel configuration mechanism 2. Available on i386 and compatibles
39 on Linux, Solaris/x86, GNU Hurd, Windows, BeOS and Haiku. Requires root privileges. Warning: This method
40 is able to address only the first 16 devices on any bus and it seems to be very
41 unreliable in many cases.
44 Direct hardware access via Intel configuration mechanism 1 via memory-mapped I/O.
45 Mostly used on non-i386 platforms. Requires root privileges. Warning: This method
46 needs to be properly configured via the
53 device on FreeBSD. Requires root privileges.
56 Access method used on AIX. Requires root privileges.
61 device on NetBSD accessed using the local libpci library.
66 device on OpenBSD. Requires root privileges.
69 Read the contents of configuration registers from a file specified in the
71 parameter. The format corresponds to the output of \fIlspci\fP \fB-x\fP.
74 Access method used on Mac OS X / Darwin. Must be run as root and the system
75 must have been booted with debug=0x144.
78 Device listing on Windows systems using the Windows Configuration Manager
79 via cfgmgr32.dll system library. This method does not require any special
80 Administrator rights or privileges. Configuration Manager provides only basic
81 information about devices, assigned resources and device tree structure. There
82 is no access to the PCI configuration space but libpci provides read-only
83 virtual emulation based on information from Configuration Manager. Starting
84 with Windows 8 (NT 6.2) it is not possible to retrieve resources from 32-bit
85 application or library on 64-bit system.
88 Access to the PCI configuration space via NT SysDbg interface on Windows
89 systems. Process needs to have Debug privilege, which local Administrators
90 have by default. Not available on 64-bit systems and neither on recent 32-bit
91 systems. Only devices from the first domain are accessible and only first
92 256 bytes of the PCI configuration space is accessible via this method.
97 The library is controlled by several parameters. They should have sensible default
98 values, but in case you want to do something unusual (or even something weird),
99 you can override them (see the \fB-O\fP switch of \fIlspci\fP).
101 .SS Parameters of specific access methods
105 Name of the bus dump file to read from.
108 Path to the FreeBSD PCI device.
111 Path to the NetBSD PCI device.
114 Path to the OpenBSD PCI device.
117 Path to the procfs bus tree.
120 Path to the sysfs device tree.
123 Path to the /dev/mem device.
126 Physical addresses of memory-mapped I/O ports for Intel configuration mechanism 1.
127 CF8 (address) and CFC (data) I/O port addresses are separated by slash and
128 multiple addresses for different PCI domains are separated by commas.
129 Format: 0xaddr1/0xdata1,0xaddr2/0xdata2,...
131 .SS Parameters for resolving of ID's via DNS
134 DNS domain containing the ID database.
137 Name of the file used for caching of resolved ID's.
139 .SS Parameters for resolving of ID's via UDEV's HWDB
142 Disable use of HWDB if set to a non-zero value.
149 .BR update-pciids (8)
152 The PCI Utilities are maintained by Martin Mares <mj@ucw.cz>.