Intell Wireless 3945 driver

[Alexey Bobok]

Hello.
I have bought a laptop Dell Latitude d820 with Intel Wireless Pro 3945 card.
I've tried to install /usr/ports/net/ipw-firmware   and then 
kldload -v if_ipw
ipwcontrol -i ipw0 -f /boot/firmware/ipw.fw
and get the error: 
ipwcontrol: Can't load /boot/firmware/ipw.fw to driver: Device not configured
the problem is that I even don't see any messages about this device in dmesg.
is there any solution? ) thanks