Location:
Device Drivers --->
[*] Network device support --->
Wireless LAN --->
<M> Atheros 5xxx wireless cards support
You also need;
Networking --->
Wireless --->
<M> Improved wireless configuration API
<M> Generic IEEE 802.11 Networking Stack (mac80211)
It can co-exist with the old one at <M> Generic IEEE 802.11 Networking Stack
(info from http://madwifi.org/wiki/About/ath5k)
