centos man page for pci_scan_slot

PCI_SCAN_SLOT(9)						Hardware Interfaces						  PCI_SCAN_SLOT(9)

NAME
       pci_scan_slot - scan a PCI slot on a bus for devices.

SYNOPSIS
       int pci_scan_slot(struct pci_bus * bus, int devfn);

ARGUMENTS
       bus
	   PCI bus to scan

       devfn
	   slot number to scan (must have zero function.)

DESCRIPTION
       Scan a PCI slot on the specified PCI bus for devices, adding discovered devices to the bus->devices list. New devices will not have
       is_added set.

       Returns the number of new devices found.

COPYRIGHT
Kernel Hackers Manual 3.10					     June 2014							  PCI_SCAN_SLOT(9)