pci_bus_add_devices — insert newly discovered PCI devices
void __devinit pci_bus_add_devices (struct pci_bus * bus);
Add newly discovered PCI devices (which are on the bus->devices list) to the global PCI device list, add the sysfs and procfs entries. Where a bridge is found, add the discovered bus to the parents list of child buses, and recurse (breadth-first to be compatible with 2.4)
Call hotplug for each new devices.