wrote kernel 802.11 layer and intel wifilink drivers using openbsd driver as documentation. alexander polakov wrote ralink rt2860 driver. wpa encryption is done in software by the kernel but you need our aux/wpa helper and factotum changes.
this stuff is in 9atom and 9front. erik wanted to port it to userspace for usb wifi support, but not sure if its ready yet. theres some old support for orinocco cards but this is old stuff and it wont support wpa. another alternative is using vonets ethernet to wifi bridges, these cost like 20 euro on amazon. -- cinap
