Print Detailed information about all PCI buses and devices in the system

lspci

• a command on Unix-like operating systems that prints detailed information about all PCI buses and devices in the system.

-v (for detail)
-nn (Show both textual and numeric ID's (names & numbers))

reference:

1. http://en.wikipedia.org/wiki/Lspci 
2. https://wiki.debian.org/HowToIdentifyADevice/PCI