ThinkPad 11a/b/g Wireless LAN Mini Express Adapter
IBM Option PN (US): 40Y7026
Linux WiFi driver
Use the Madwifi driver. This driver has support for Atheros rev 0x0024 support since svn revision 2360.
OR (not recommended)
get the driver from http://www-307.ibm.com/pc/support/site.wss/document.do?lndocid=MIGR-52527 and use ndiswrapper
Some ThinkPads have a hardware switch that must be in the on position for the radio to work, regardless of driver state:
(Note: This may not always be the case. On at least one T60, model 2007-62U with Atheros AR5212, running Ubuntu Edgy with the MadWifi driver, the wireless switch has no effect. Wireless operates with the switch in either position. But there's an experimental patch which adds support of the switch to ibm-acpi.)