PCI device classes

22 PCI classes. The class (e.g. 01:06:01 for SATA AHCI) describes what kind of device it is – many Linux drivers bind to a class rather than a single device ID.

Code	Name	Class drivers (Linux)
`00`	Unclassified device
`01`	Mass storage controller	`ahci`, `ata_generic`, `nvme`
`02`	Network controller
`03`	Display controller
`04`	Multimedia controller
`05`	Memory controller	`cxl_pci`
`06`	Bridge	`yenta_socket`
`07`	Communication controller
`08`	Generic system peripheral	`sdhci_pci`
`09`	Input device controller
`0a`	Docking station
`0b`	Processor
`0c`	Serial bus controller	`ehci_pci`, `firewire_ohci`, `ipmi_si`, `ohci_pci`, `thunderbolt`, `uhci_hcd`, `xhci_pci`
`0d`	Wireless controller
`0e`	Intelligent controller
`0f`	Satellite communications controller
`10`	Encryption controller
`11`	Signal processing controller
`12`	Processing accelerator
`13`	Non-essential instrumentation
`40`	Coprocessor
`ff`	Unassigned class