Cross-Referenced Linux and Device Driver Code

   /* Core PCI functionality used only by PCI hotplug */
   
   #include <linux/pci.h>
   #include "pci.h"
   
   
   unsigned int __devinit pci_do_scan_bus(struct pci_bus *bus)
   {
           unsigned int max;
  
          max = pci_scan_child_bus(bus);
  
          /*
           * Make the discovered devices available.
           */
          pci_bus_add_devices(bus);
  
          return max;
  }
  EXPORT_SYMBOL(pci_do_scan_bus);