device_get_devclass
if (device_get_devclass(device_get_parent(pcib)) ==
if (device_get_devclass(device_get_parent(pcib)) ==
devclass_t devclass=device_get_devclass(GRANDPARENT(GRANDPARENT(subdisk)));
parent_devclass = device_get_devclass(device_get_parent(dev));
dc = device_get_devclass(dev);
dc = device_get_devclass(dev);
devclass_t device_get_devclass(device_t dev);