bktr_probe
static int bktr_probe(struct device *, void *, void *);
static int bktr_probe(device_t, cfdata_t, void *);
bktr_probe, bktr_attach, NULL, NULL);
static int bktr_probe(device_t dev);
DEVMETHOD(device_probe, bktr_probe),
static const char* bktr_probe(pcici_t tag, pcidi_t type);
bktr_probe,
bktr_probe(pcici_t tag, pcidi_t type)