pci_is_pcie(9) centos man page | unix.com

PCI_IS_PCIE(9)							Hardware Interfaces						    PCI_IS_PCIE(9)

NAME
       pci_is_pcie - check if the PCI device is PCI Express capable

SYNOPSIS
       bool pci_is_pcie(struct pci_dev * dev);

ARGUMENTS
       dev
	   PCI device

RETURNS
       true if the PCI device is PCI Express capable, false otherwise.

COPYRIGHT
Kernel Hackers Manual 3.10					     June 2014							    PCI_IS_PCIE(9)