1 This package contains the PCI Utilities, version @VERSION@.
3 Copyright (c) 1997--2008 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 http://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)
26 CYGWIN (direct port access)
28 It should be very easy to add support for other systems as well (volunteers
29 wanted; if you want to try that, I'll be very glad to see the patches and
30 include them in the next version).
32 The utilities include: (See manual pages for more details)
34 - lspci: displays detailed information about all PCI buses and devices.
36 - setpci: allows to read from and write to PCI device configuration
37 registers. For example, you can adjust the latency timers with it.
38 CAUTION: There is a couple of dangerous points and caveats, please read
39 the manual page first!
41 - update-pciids: download the current version of the pci.ids file.
44 2. Compiling and (un)installing
45 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
46 Just run "make" to compile the package and then "make install" to install it.
47 Please note that GNU make is needed on most platforms.
49 If you want to change the default installation location, please override
50 the PREFIX variable specified in the Makefile -- e.g., you can use
51 "make PREFIX=/opt/pciutils install" to create a separate installation
52 not interfering with the rest of your system. Setting the DESTDIR variable
53 will allow you to install to a different directory from the one you intend
54 to eventually run it from. This is useful for people who are packaging
55 pciutils to install on other computers.
57 There are several options which can be set in the Makefile or overridden
60 ZLIB=yes/no Enable support for compressed pci.ids (requires zlib).
61 If it is enabled, pciutils will use pci.ids.gz in preference to
62 pci.ids, even if the pci.ids file is newer. If the pci.ids.gz
63 file is missing, it will use pci.ids instead. If you do not
64 specify this option, the configure script will try to guess
65 automatically based on the presence of zlib.
67 DNS=yes/no Enable support for querying the central database of PCI ID's
68 using DNS. Requires libresolv (which is available on most
69 systems as a part of the standard libraries) and tries to
70 autodetect its presence if the option is not specified.
72 SHARED=yes/ Build libpci as a shared library. Requires GCC 4.0 or newer.
73 no/local The ABI of the shared library is intended to remain backward
74 compatible for a long time (we use symbol versioning to achieve
75 that, like GNU libc does). The value `local' includes the
76 right directory name in the binaries, so the utilities can be
77 run without installation. This is not recommended for any
80 "make install-lib" installs the library together with its header files
81 for use by other programs.
83 When you are bored of dumping PCI registers, just use "make uninstall".
88 The database of PCI ID's (the pci.ids file) gets out of date much faster
89 than I release new versions of this package.
91 If you are missing names for any of your devices or you just want to stay
92 on the bleeding edge, download the most recent pci.ids file from
93 http://pciids.sf.net/ (e.g., by running the update-ids utility).
95 Alternatively, you can use `lspci -q' to query the central database
96 for new entries via network.
98 If your devices still appear as unknown, please send us their ID's and
99 names, the detailed instructions for submissions are listed on the
103 4. Getting new versions
104 ~~~~~~~~~~~~~~~~~~~~~~~
105 New versions of pciutils are available at the following places:
107 ftp://atrey.karlin.mff.cuni.cz/pub/linux/pci/
108 ftp://ftp.kernel.org/pub/software/utils/pciutils/ (expect a couple of hours delay)
109 ftp://metalab.unc.edu/pub/Linux/hardware/ (expect a couple of days delay)
111 There is also a public GIT tree at:
113 git://git.kernel.org/pub/scm/utils/pciutils/pciutils.git
118 So far, there is only a little documentation for the library except for the
119 general introduction in the pcilib(7) man page. If you want to use the
120 library in your programs, please follow the comments in lib/pci.h and in
121 the example program example.c.
126 If you have any bug reports or suggestions, send them to the author.
128 If you have any new ID's, I'll be very glad to add them to the database, but
129 please take a look at http://pciids.sf.net/ first and follow the instructions.
131 If you want, subscribe to linux-pci@vger.kernel.org (take a look at
132 http://vger.kernel.org/ for instructions).
133 Release notes about new versions will be send to the list and problems with
134 the Linux PCI support will be probably discussed there, too.
139 You also might want to look at the pciutils web page containing release
140 notes and other news: http://mj.ucw.cz/pciutils.shtml .
142 There also exists a utility called PowerTweak which is able to fine tune
143 parameters of many chipsets much better than the Bridge Optimization code
144 in Linux kernel (already removed in 2.3.x). See http://powertweak.sf.net/
145 for more information.