How to "identify" the PCI-like devices (AGP, PCI-Express, CardBus, Express Card, etc) that are connected to you computer.
Many people simply use [#lspci lspci], which is available on every Debian system, to list the device on their computer. Gnome users can install and use the [:HowToIdentifyADevice/CPU#hardinfo:hardinfo] method. KDE user can use [:HowToIdentifyADevice/CPU#kinfocenter:kinfocenter].
?Anchor(pci-id)
PCI-id
Devices are mainly identified using a pair of hexadecimal numbers, like 1014:003E.
- The 4 first hexadecimal digits are the Vendor ID (1014 = IBM)
- The 4 last hexadecimal digits are the Device ID (003e = 16/4 Token ring)
Actually there is also some sub-vendor-id, sub-vendor-id (to identify the computer/vendor implementation), pci function and class... see [#references references] for more information.
Some of the device (device-id) handled by Debian are listed in the page : ["DeviceDatabase/PCI"].
?Anchor(lspci)
lspci
lspci [package:pciutils] is the standard tool to query the devices connected to any pci compatible bus .
sample output ("-nn" options only works newer linux versions) :
lspci -nn 00:00.0 Host bridge [0600]: Intel Corporation Mobile 945GM/PM/GMS, 943/940GML and 945GT Express Memory Controller Hub [8086:27a0] (rev 03) 00:02.0 VGA compatible controller [0300]: Intel Corporation Mobile 945GM/GMS, 943/940GML Express Integrated Graphics Controller [8086:27a2] (rev 03) 00:02.1 Display controller [0380]: Intel Corporation Mobile 945GM/GMS, 943/940GML Express Integrated Graphics Controller [8086:27a6] (rev 03) 00:1b.0 Audio device [0403]: Intel Corporation 82801G (ICH7 Family) High Definition Audio Controller [8086:27d8] (rev 02) 00:1c.0 PCI bridge [0604]: Intel Corporation 82801G (ICH7 Family) PCI Express Port 1 [8086:27d0] (rev 02) 00:1c.1 PCI bridge [0604]: Intel Corporation 82801G (ICH7 Family) PCI Express Port 2 [8086:27d2] (rev 02) 00:1c.2 PCI bridge [0604]: Intel Corporation 82801G (ICH7 Family) PCI Express Port 3 [8086:27d4] (rev 02) 00:1c.3 PCI bridge [0604]: Intel Corporation 82801G (ICH7 Family) PCI Express Port 4 [8086:27d6] (rev 02) 00:1d.0 USB Controller [0c03]: Intel Corporation 82801G (ICH7 Family) USB UHCI Controller #1 [8086:27c8] (rev 02) 00:1d.1 USB Controller [0c03]: Intel Corporation 82801G (ICH7 Family) USB UHCI Controller #2 [8086:27c9] (rev 02) 00:1d.2 USB Controller [0c03]: Intel Corporation 82801G (ICH7 Family) USB UHCI Controller #3 [8086:27ca] (rev 02) 00:1d.3 USB Controller [0c03]: Intel Corporation 82801G (ICH7 Family) USB UHCI Controller #4 [8086:27cb] (rev 02) 00:1d.7 USB Controller [0c03]: Intel Corporation 82801G (ICH7 Family) USB2 EHCI Controller [8086:27cc] (rev 02) 00:1e.0 PCI bridge [0604]: Intel Corporation 82801 Mobile PCI Bridge [8086:2448] (rev e2) 00:1f.0 ISA bridge [0601]: Intel Corporation 82801GBM (ICH7-M) LPC Interface Bridge [8086:27b9] (rev 02) 00:1f.2 IDE interface [0101]: Intel Corporation 82801GBM/GHM (ICH7 Family) SATA IDE Controller [8086:27c4] (rev 02) 00:1f.3 SMBus [0c05]: Intel Corporation 82801G (ICH7 Family) SMBus Controller [8086:27da] (rev 02) 02:00.0 Ethernet controller [0200]: Intel Corporation 82573L Gigabit Ethernet Controller [8086:109a] 03:00.0 Network controller [0280]: Intel Corporation PRO/Wireless 3945ABG Network Connection [8086:4227] (rev 02) 15:00.0 CardBus bridge [0607]: Texas Instruments PCI1510 PC card Cardbus Controller [104c:ac56] 16:00.0 Ethernet controller [0200]: ADMtek 21x4x DEC-Tulip compatible 10/100 Ethernet [1317:1985] (rev 11)
Notes regarding the example above :
- 104c:ac56 is the cardbus bridge ("controller")
- 1317:1985 is a PCCard (32-bit Cardbus) Ethernet Adapter.
if your device description says "Unknown device", you can update your local pci-id definition by running update-pciids as root.
man (8)lspci (8)update-pciids?BR /usr/share/misc/pci.ids - A text file mapping vendor id and device id to a text description.
?Anchor(gnome)
under Gnome : hardinfo
?Anchor(hardinfo) Gnomes's System Information (Hardinfo in Menu Applications/System Tools, from package:hardinfo) has an information page on the "PCI" cards.
inline:hardinfo.png
?Anchor(kde)
under KDE : KInfocenter
?Anchor(kinfocenter) KDE's KInfoCenter (in K Menu / System / KInfoCenter Info Center, from package:kcontrol) has an information page on the "PCI" cards.
inline:KInfoCenter.png ?BRNote: KInfoCenter provides the PCI device names, not PCI IDs.
discover
The discover package has a nice commande too:
discover --vendor-id --model-id pci | uniq 8086 27a0 Intel Corporation Mobile 945GM/PM/GMS, 943/940GML and 945GT Express Memory Controller Hub 8086 27a0 Intel Corporation Mobile 945GM/PM/GMS/940GML and 945GT Express Memory Controller Hub 8086 27a2 Intel Corporation Mobile 945GM/GMS, 943/940GML Express Integrated Graphics Controller 8086 27a2 Intel Corporation Mobile 945GM/GMS/940GML Express Integrated Graphics Controller 8086 27a6 Intel Corporation Mobile 945GM/GMS, 943/940GML Express Integrated Graphics Controller 8086 27a6 Intel Corporation Mobile 945GM/GMS/940GML Express Integrated Graphics Controller 8086 27d8 Intel Corporation 82801G (ICH7 Family) High Definition Audio Controller 8086 27d0 Intel Corporation 82801G (ICH7 Family) PCI Express Port 1 8086 27d2 Intel Corporation 82801G (ICH7 Family) PCI Express Port 2 8086 27d4 Intel Corporation 82801G (ICH7 Family) PCI Express Port 3 8086 27d6 Intel Corporation 82801G (ICH7 Family) PCI Express Port 4 8086 27c8 Intel Corporation 82801G (ICH7 Family) USB UHCI Controller #1 8086 27c8 Intel Corporation 82801G (ICH7 Family) USB UHCI #1 8086 27c9 Intel Corporation 82801G (ICH7 Family) USB UHCI Controller #2 8086 27c9 Intel Corporation 82801G (ICH7 Family) USB UHCI #2 8086 27ca Intel Corporation 82801G (ICH7 Family) USB UHCI Controller #3 8086 27ca Intel Corporation 82801G (ICH7 Family) USB UHCI #3 8086 27cb Intel Corporation 82801G (ICH7 Family) USB UHCI Controller #4 8086 27cb Intel Corporation 82801G (ICH7 Family) USB UHCI #4 8086 27cc Intel Corporation 82801G (ICH7 Family) USB2 EHCI Controller 8086 2448 Intel Corporation 82801 Mobile PCI Bridge 8086 27b9 Intel Corporation 82801GBM (ICH7-M) LPC Interface Bridge 8086 27c4 Intel Corporation 82801GBM/GHM (ICH7 Family) SATA IDE Controller 8086 27da Intel Corporation 82801G (ICH7 Family) SMBus Controller 8086 109a Intel Corporation 82573L Gigabit Ethernet Controller8086 4227 Intel Corporation PRO/Wireless 3945ABG Network Connection 104c ac56 Texas Instruments PCI1510 PC card Cardbus Controller
man (1)discover?BR discover use it's own files :/lib/discover/pci-busclass.xml, /lib/discover/pci-device.xml, /lib/discover/pci-vendor.xml
Digging by hand
/proc/bus/pci/devices
if lspci isn't available (!), you can display the content of /proc/bus/pci/devices to list vendor and device IDs.
cat /proc/bus/pci/devices
/sys/bus/pci
if lspci isn't available (!), you can browse /sys/bus/pci (assuming sysfs is mounted on /sys).
/usr/share/doc/linux-doc-2.6.26/Documentation/filesystems/sysfs-pci.txt.gz - /sys/bus/pci overview
?Anchor(references)
References
[wiki:Peripheral_Component_Interconnect wikipedia] - PCI
http://pci-ids.ucw.cz/iii/ maintains a list of device-id and vendor-id to text mappings (used by lspci, xorg and more).