gets down to there through ath_init() -> ath_enable() -> ...
from a discussion with damien
-/* $OpenBSD: ath.c,v 1.86 2010/07/02 06:06:30 reyk Exp $ */
+/* $OpenBSD: ath.c,v 1.87 2010/08/04 21:02:24 deraadt Exp $ */
/* $NetBSD: ath.c,v 1.37 2004/08/18 21:59:39 dyoung Exp $ */
/*-
if (ifp->if_flags & IFF_UP) {
ath_init(ifp);
- if (sc->sc_power != NULL)
- (*sc->sc_power)(sc, why);
if (ifp->if_flags & IFF_RUNNING)
ath_start(ifp);
}