System administration command. List all Peripheral Component Interconnect (PCI) devices. This command has many options that are useful for debugging device drivers. Here we document some of the more common options:
Show IRQ and addresses as seen by the cards instead of the kernel.
Print a tree showing connections between devices.
Print information with quoted strings suitable for use by scripts.
Print vendor and device codes as numbers.
List devices verbosely. Use the second form for very verbose listings.