1. PCI supports the useful concept that every vendor and device have unique hex IDs. For instance, Intel has chosen to represent themselves by the completely random number 0x8086 as their vendor ID. PCI cards will provide their IDs on request. You will see numerical values listed in the output of lspci, scanpci, and cat /proc/pci, especially if the respective utility cannot look up the vendor name from the ID number. The file /usr/share/pci.ids ( /usr/share/misc/pci.ids on Debian) from the pciutils package contains a complete table of all IDs and their corresponding names. The kudzu package also has a table /usr/share/kudzu/pcitable containing the information we are really looking for: ID to kernel module mappings. This enables you to use the intended scientific method for locating the correct PCI module from the kernel's /proc/pci data. The file format is easy to understand, and as an exercise you should try writing a shell script to do the lookup automatically. From Rute-Users-Guide