If you have not updated PCI IDs on your system in while, it is a good idea to keep it updated once in a while.
If you notice that lspci command is not displaying the proper device name for any of the devices that are connected to your PCI bus, this might be because the PCI IDs on your system is not current.
To update the PCI IDs, use update-pciids command.
update-pciids is part of pciutils package.
1. PCI ID File Location and Syntax
The PCI IDs on your system is stored in the following file:
/usr/share/hwdata/pci.ids
The following is the syntax for the entries in this file:
# Syntax: # vendor vendor_name # device device_name <-- single tab # subvendor subdevice subsystem_name <-- two tabs
For example, for LSI Logic, you'll see the following entries. This is only partial list for the LSI Logic.
$ vi /usr/share/hwdata/pci.ids
1000 LSI Logic / Symbios Logic
1960 MegaRAID
1000 0518 MegaRAID 518 SCSI 320-2 Controller
1000 0520 MegaRAID 520 SCSI 320-1 Controller
1000 0522 MegaRAID 522 i4 133 RAID Controller
1000 0523 MegaRAID SATA 150-6 RAID Controller
1000 4523 MegaRAID SATA 150-4 RAID Controller
1000 a520 MegaRAID ZCR SCSI 320-0 Controller
1028 0518 MegaRAID 518 DELL PERC 4/DC RAID Controller
1028 0520 MegaRAID 520 DELL PERC 4/SC RAID Controller
1028 0531 PowerEdge Expandable RAID Controller 4/QC
1028 0533 PowerEdge Expandable RAID Controller 4/QC
8086 0520 MegaRAID RAID Controller SRCU41L
8086 0523 MegaRAID RAID Controller SRCS16
2. Update the pci.ids File
The latest PCI ids are maintained by the PCI Ids site.
Use the following command to update the above pci.ids file with the latest information from the PCI IDs primary site.
Please note that this will work only when you have either curl, or wget, or lynx on your system. Also, to save the bandwidth if you have gzip (or bzip2), the following command will download the compressed version of the file and install it accordingly.
# update-pciids
% Total % Received % Xferd Average Speed Time Time Time Current
Dload Upload Total Spent Left Speed
100 196k 100 196k 0 0 395k 0 --:--:-- --:--:-- --:--:-- 539k
Done.
If you are running this as a background job on an on-going basis, use the following command to run in the quiet mode.
update-pciids -q
If you don't see a particular ID listed in the PCI IDs file you can also submit your request at the PCI Ids site.