MadWifi, Fedora 8, AR5418 (Lenovo X60)
Okay, the WLAN is working now!
After finding something similar (not exact, as you'll) on the MadWifi forums, and finally figuring out that I needed madwifi-trunk (as distinct from "most recent release"), the instructions here worked like a charm.
It even works with NetworkManager. Haven't tried WEP yet...
This is with kernel-18.104.22.168-137.fc8 and a yum update as of Valentine's Day, with livna enabled as a yum repository.
[rdv@dhcp-148 ~]$ iwconfig
lo no wireless extensions.
eth0 no wireless extensions.
irda0 no wireless extensions.
wifi0 no wireless extensions.
ath1 IEEE 802.11a ESSID:"redacted" Nickname:""
Mode:Managed Frequency:5.21 GHz Access Point: redacted
Bit Rate:36 Mb/s Tx-Power:13 dBm Sensitivity=1/1
Retry:off RTS thr:off Fragment thr:off
Link Quality=37/70 Signal level=-59 dBm Noise level=-96 dBm
Rx invalid nwid:113352 Rx invalid crypt:0 Rx invalid frag:0
Tx excessive retries:0 Invalid misc:0 Missed beacon:0