#include <sys/param.h>#include <sys/device.h>static int pci_match(struct device *parent, void *match, void *aux);static void pci_attach(struct device *parent, struct device *self, void *aux);struct cfattach pci_ca = {    0, pci_match, pci_attach, NULL};struct cfdriver pci_cd = {	NULL, "pci", DV_DULL};static intpci_match(parent, match, aux)	struct device *parent;	void *match;	void *aux;{	return (1);}static voidpci_attach(parent, self, aux)	struct device *parent, *self;	void *aux;{}