pci_scan_bridge
max = pci_scan_bridge(bus, dev, max, 0);
max = pci_scan_bridge(bus, dev, max, 1);
max = pci_scan_bridge(bus, dev, max, 0);
max = pci_scan_bridge(bus, dev, max, 1);
max = pci_scan_bridge(bus, dev, max, pass);
EXPORT_SYMBOL(pci_scan_bridge);
busnr = pci_scan_bridge(parent, dev, busnr, 0);
max = pci_scan_bridge(bus, dev, max, pass);
int pci_scan_bridge(struct pci_bus *bus, struct pci_dev *dev, int max,