centos man page for pci_bus_max_busnr

PCI_BUS_MAX_BUSNR(9)						Hardware Interfaces					      PCI_BUS_MAX_BUSNR(9)

NAME
       pci_bus_max_busnr - returns maximum PCI bus number of given bus' children

SYNOPSIS
       unsigned char pci_bus_max_busnr(struct pci_bus * bus);

ARGUMENTS
       bus
	   pointer to PCI bus structure to search

DESCRIPTION
       Given a PCI bus, returns the highest PCI bus number present in the set including the given PCI bus and its list of child PCI buses.

COPYRIGHT
Kernel Hackers Manual 3.10					     June 2014						      PCI_BUS_MAX_BUSNR(9)