Gentoo on a Toshiba Satellite A45-S20?

I have installed Gentoo on my Toshiba Satellite A45-S20 (dual boot with
Win XP), but I can only access wireless connectivity on the Windows side
and not the linux side. I can't seem to find the right drivers for my
integrated wireless LAN mini PCI (Atheros 802.11a/g). I would appreciate
any advice/suggestions ... thanks!

Benjoe (:

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