- pci_get_class :
This function search for a matching pci device based on the class/subclass
and returns a newly created pci_dev.
- pci_{save,restore}_state :
This is analogous to ours with the same name
- pci_is_root_bus :
Return true if this is the root bus
- pci_get_domain_bus_and_slot :
This function search for a matching pci device based on domain, bus and
slot/function concat into a single unsigned int (devfn) and returns a
newly created pci_dev
- pci_bus_{read,write}_config* :
Read/Write to the config space.
- pci_dev_put :
Release a pci driver