1 This package contains the PCI Utilities, version @VERSION@.
3 Copyright (c) 1997--2020 Martin Mares <mj@ucw.cz>
5 All files in this package can be freely distributed and used according
6 to the terms of the GNU General Public License, either version 2 or
7 (at your opinion) any newer version. See https://www.gnu.org/ for details.
12 The PCI Utilities package contains a library for portable access to PCI bus
13 configuration registers and several utilities based on this library.
15 In runs on the following systems:
17 Linux (via /sys/bus/pci, /proc/bus/pci or i386 ports)
18 FreeBSD (via /dev/pci)
20 OpenBSD (via /dev/pci)
21 GNU/kFreeBSD (via /dev/pci)
22 Solaris/i386 (direct port access)
23 Aix (via /dev/pci and odmget)
24 GNU Hurd (direct port access)
25 Windows (direct port access, see README.Windows for caveats)
26 CYGWIN (direct port access)
28 Haiku (via /dev/misc/poke)
30 DOS/DJGPP (via i386 ports)
31 SylixOS (via /proc/pci)
33 It should be very easy to add support for other systems as well (volunteers
34 wanted; if you want to try that, I'll be very glad to see the patches and
35 include them in the next version).
37 The utilities include: (See manual pages for more details)
39 - lspci: displays detailed information about all PCI buses and devices.
41 - setpci: allows to read from and write to PCI device configuration
42 registers. For example, you can adjust the latency timers with it.
43 CAUTION: There is a couple of dangerous points and caveats, please read
44 the manual page first!
46 - update-pciids: download the current version of the pci.ids file.
49 2. Compiling and (un)installing
50 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
51 Just run "make" to compile the package and then "make install" to install it.
52 Please note that a C compiler supporting the C99 standard is required.
53 Also, GNU make is needed on most platforms.
55 If you want to change the default installation location, please override
56 the PREFIX variable specified in the Makefile -- e.g., you can use
57 "make PREFIX=/opt/pciutils install" to create a separate installation
58 not interfering with the rest of your system. Setting the DESTDIR variable
59 will allow you to install to a different directory from the one you intend
60 to eventually run it from. This is useful for people who are packaging
61 pciutils to install on other computers.
63 There are several options which can be set in the Makefile or overridden
66 ZLIB=yes/no Enable support for compressed pci.ids (requires zlib).
67 If it is enabled, pciutils will use pci.ids.gz in preference to
68 pci.ids, even if the pci.ids file is newer. If the pci.ids.gz
69 file is missing, it will use pci.ids instead. If you do not
70 specify this option, the configure script will try to guess
71 automatically based on the presence of zlib.
73 DNS=yes/no Enable support for querying the central database of PCI IDs
74 using DNS. Requires libresolv (which is available on most
75 systems as a part of the standard libraries) and tries to
76 autodetect its presence if the option is not specified.
78 SHARED=yes/ Build libpci as a shared library. Requires GCC 4.0 or newer.
79 no/local The ABI of the shared library is intended to remain backward
80 compatible for a long time (we use symbol versioning to achieve
81 that, like GNU libc does). The value `local' includes the
82 right directory name in the binaries, so the utilities can be
83 run without installation. This is not recommended for any
86 "make install-lib" installs the library together with its header files
87 for use by other programs.
89 When you are bored of dumping PCI registers, just use "make uninstall".
94 The database of PCI IDs (the pci.ids file) gets out of date much faster
95 than I release new versions of this package, so it is maintained separately.
97 It lives at https://pci-ids.ucw.cz/, where you can browse the database,
98 download the most recent pci.ids file (e.g., by running the update-ids utility)
99 and also submit new entries.
101 Alternatively, you can use `lspci -q' to query the central database
102 for new entries via network.
104 The pci.ids file is also mirrored at https://github.com/pciutils/pciids.
106 On Linux systems with a recent enough version of libudev, UDEV's HWDB
107 database is consulted when pci.ids lacks the device.
110 4. Getting new versions
111 ~~~~~~~~~~~~~~~~~~~~~~~
112 The current version of pciutils is available at:
114 https://mj.ucw.cz/sw/pciutils/
116 The tarball can be downloaded at the following places:
118 https://mj.ucw.cz/download/linux/pci/
119 ftp://ftp.ucw.cz/pub/mj/linux/pci/
120 https://www.kernel.org/pub/software/utils/pciutils/ (expect a couple of hours delay)
122 There is also a public GIT tree at:
124 https://git.kernel.org/pub/scm/utils/pciutils/pciutils.git
125 https://github.com/pciutils/pciutils
130 So far, there is only a little documentation for the library except for the
131 general introduction in the pcilib(7) man page. If you want to use the
132 library in your programs, please follow the comments in lib/pci.h and in
133 the example program example.c.
138 If you have any bug reports or suggestions, send them to the author.
140 If you have any new IDs, I'll be very glad to add them to the database.
141 Just submit them at https://pci-ids.ucw.cz/.
143 Announcements of new versions are sent to linux-pci@vger.kernel.org
144 (see http://vger.kernel.org/ for instructions).