[Asterisk-bsd] Passing opemode parameter to zaptel drivers

[Iax]

Hi all,
I'd like to set the opermode in wcfxs/wcfxo zaptel kernel modules to 
meet regional pstn requirements.
I'm using zaptel-bsd-1.4.6 on freeBSD 6.3 and an Openvox A400P pci card.

Also seen this thread 
http://lists.digium.com/pipermail/asterisk-bsd/2005-October/thread.html#1251
then tried using hint.wcfxs.0.flags="1" in /boot/device.hints but no 
luck. Tried also to set flags in loader.conf but, again, nothing worked 
and this setting was simply ignored without any error in system messages.

Someone know the right way to address this problem in freeBSD?