DEVINFO_PARENT
data.di_flags = DEVINFO_PARENT | DEVINFO_CHILD;
'c', MDB_OPT_CLRBITS, DEVINFO_PARENT, &data.di_flags, NULL) != argc)
if ((data.di_flags & (DEVINFO_PARENT | DEVINFO_CHILD)) ==
(DEVINFO_PARENT | DEVINFO_CHILD)) {
} else if (data.di_flags & DEVINFO_PARENT) {
data.di_flags |= DEVINFO_PARENT | DEVINFO_CHILD;