Created attachment 186100 [details]
Changes to rc.d/hostapd and associated man page.
Not really sure if that will work when 2+ interfaces with HOSTAP keyword in rc.conf...
Anyway, for now it should work for one hostapd per interface; probably, there should be some keyword (hostapd_group?) for one hostapd instance which can handle more than one interface (hostapd /etc/hostapd-wlan1.conf /etc/hostapd-wlan2.conf ...)