com_hpcio_common_probe
if (!com_hpcio_common_probe(iot, iobase, &alignment)) {
return com_hpcio_common_probe(iot, addr, &alignment);
com_hpcio_common_probe(haa->haa_iot, addr, &alignment);
static int com_hpcio_common_probe(bus_space_tag_t, int, int *);