1This package contains the PCI Utilities, version @VERSION@. 2 3Copyright (c) 1997--2010 Martin Mares <[email protected]> 4 5All files in this package can be freely distributed and used according 6to 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. 8 9 101. What's that? 11~~~~~~~~~~~~~~~ 12The PCI Utilities package contains a library for portable access to PCI bus 13configuration registers and several utilities based on this library. 14 15In runs on the following systems: 16 17 Linux (via /sys/bus/pci, /proc/bus/pci or i386 ports) 18 FreeBSD (via /dev/pci) 19 NetBSD (via libpci) 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) 27 BeOS (via syscalls) 28 Haiku (via /dev/misc/poke) 29 30It should be very easy to add support for other systems as well (volunteers 31wanted; if you want to try that, I'll be very glad to see the patches and 32include them in the next version). 33 34The utilities include: (See manual pages for more details) 35 36 - lspci: displays detailed information about all PCI buses and devices. 37 38 - setpci: allows to read from and write to PCI device configuration 39 registers. For example, you can adjust the latency timers with it. 40 CAUTION: There is a couple of dangerous points and caveats, please read 41 the manual page first! 42 43 - update-pciids: download the current version of the pci.ids file. 44 45 462. Compiling and (un)installing 47~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 48Just run "make" to compile the package and then "make install" to install it. 49Please note that GNU make is needed on most platforms. 50 51If you want to change the default installation location, please override 52the PREFIX variable specified in the Makefile -- e.g., you can use 53"make PREFIX=/opt/pciutils install" to create a separate installation 54not interfering with the rest of your system. Setting the DESTDIR variable 55will allow you to install to a different directory from the one you intend 56to eventually run it from. This is useful for people who are packaging 57pciutils to install on other computers. 58 59There are several options which can be set in the Makefile or overridden 60when running make: 61 62 ZLIB=yes/no Enable support for compressed pci.ids (requires zlib). 63 If it is enabled, pciutils will use pci.ids.gz in preference to 64 pci.ids, even if the pci.ids file is newer. If the pci.ids.gz 65 file is missing, it will use pci.ids instead. If you do not 66 specify this option, the configure script will try to guess 67 automatically based on the presence of zlib. 68 69 DNS=yes/no Enable support for querying the central database of PCI ID's 70 using DNS. Requires libresolv (which is available on most 71 systems as a part of the standard libraries) and tries to 72 autodetect its presence if the option is not specified. 73 74 SHARED=yes/ Build libpci as a shared library. Requires GCC 4.0 or newer. 75 no/local The ABI of the shared library is intended to remain backward 76 compatible for a long time (we use symbol versioning to achieve 77 that, like GNU libc does). The value `local' includes the 78 right directory name in the binaries, so the utilities can be 79 run without installation. This is not recommended for any 80 production builds. 81 82"make install-lib" installs the library together with its header files 83for use by other programs. 84 85When you are bored of dumping PCI registers, just use "make uninstall". 86 87 883. Getting new ID's 89~~~~~~~~~~~~~~~~~~~ 90The database of PCI ID's (the pci.ids file) gets out of date much faster 91than I release new versions of this package. 92 93If you are missing names for any of your devices or you just want to stay 94on the bleeding edge, download the most recent pci.ids file from 95http://pciids.sf.net/ (e.g., by running the update-ids utility). 96 97Alternatively, you can use `lspci -q' to query the central database 98for new entries via network. 99 100If your devices still appear as unknown, please send us their ID's and 101names, the detailed instructions for submissions are listed on the 102sf.net web page. 103 104 1054. Getting new versions 106~~~~~~~~~~~~~~~~~~~~~~~ 107New versions of pciutils are available at the following places: 108 109 ftp://atrey.karlin.mff.cuni.cz/pub/linux/pci/ 110 ftp://ftp.kernel.org/pub/software/utils/pciutils/ (expect a couple of hours delay) 111 ftp://metalab.unc.edu/pub/Linux/hardware/ (expect a couple of days delay) 112 113There is also a public GIT tree at: 114 115 git://git.kernel.org/pub/scm/utils/pciutils/pciutils.git 116 117 1185. Using the library 119~~~~~~~~~~~~~~~~~~~~ 120So far, there is only a little documentation for the library except for the 121general introduction in the pcilib(7) man page. If you want to use the 122library in your programs, please follow the comments in lib/pci.h and in 123the example program example.c. 124 125 1266. Feedback 127~~~~~~~~~~~ 128If you have any bug reports or suggestions, send them to the author. 129 130If you have any new ID's, I'll be very glad to add them to the database, but 131please take a look at http://pciids.sf.net/ first and follow the instructions. 132 133If you want, subscribe to [email protected] (take a look at 134http://vger.kernel.org/ for instructions). 135Release notes about new versions will be send to the list and problems with 136the Linux PCI support will be probably discussed there, too. 137 138 1397. Miscellanea 140~~~~~~~~~~~~~~ 141You also might want to look at the pciutils web page containing release 142notes and other news: http://mj.ucw.cz/pciutils.shtml . 143 144There also exists a utility called PowerTweak which is able to fine tune 145parameters of many chipsets much better than the Bridge Optimization code 146in Linux kernel (already removed in 2.3.x). See http://powertweak.sf.net/ 147for more information. 148 149 Have fun 150 Martin 151