device_locator
device_locator(dv, PCICF_DEV) == ap->ap_device &&
device_locator(dv, PCICF_FUNCTION) == ap->ap_function)
ct = sc->sc_funcs[device_locator(child, CARDBUSCF_FUNCTION)];
ct = sc->sc_funcs[device_locator(child, CARDBUSCF_FUNCTION)];
device = device_locator(child, PCICF_DEV);
function = device_locator(child, PCICF_FUNCTION);
d = device_locator(child, PCICF_DEV);
f = device_locator(child, PCICF_FUNCTION);
KASSERT(device_locator(child, PCMCIACF_FUNCTION)
target = device_locator(child, SCSIBUSCF_TARGET);
lun = device_locator(child, SCSIBUSCF_LUN);
int device_locator(device_t, u_int);