ThinkPad 11a/b/g Wireless LAN Mini Express Adapter
IBM/Lenovo Option PN (US): 40Y7026
Linux WiFi driver
The latest linux distributions have a driver for this (ath5k) which should automatically be used. However this driver might not be completely stable unless you upgrade to at least 2.6.29.
Alternatively you can 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 (at least in theory) must be in the on position for the radio to work. However this function depends on driver (thinkpad_acpi) and userland (typically NetworkManager) support, and as such nothing may happen unless you run a modern distribution like Fedora 12 or Ubuntu 9.10.
The hardware switch is also supposed to kill Bluetooth and WWAN, but that also depends on userland support.
T60 WiFi LED
Problem: The WiFi LED on the T60 isn't enabled by default on bootup.
Solution: As root edit /etc/rc.local by adding the following command at the bottom:
echo -n 1 > /proc/sys/dev/wifi0/ledpin;
Save your changes, afterwards on every boot up the WiFi LED will be enabled.
Note:This has been verified on a T60 1953-D7U running Fedora 7 Linux, however this should work on most Laptop-OS configurations.
Howto make the wifi led blink when there is network traffic. I've only tested this on an X61 with AR5212 802.11abg - AR5BXB6 on Debian/Ubuntu
sysctl -w dev.wifi0.ledpin=1 sysctl -w dev.wifi0.softled=1 //change the 1 to anything 1-9 for a more responsive blink
If you would like for this to occur on boot, add