Kerr blog

http://www.tldp.org/linuxfocus/ChineseGB/December2004/article361.shtml

http://tuxmobil.org/minipci_linux.html

http://www.srcf.ucam.org/~mjg59/thinkpad/wireless.html

http://www-306.ibm.com/pc/support/site.wss/document.do?lndocid=MIGR-43693

http://www.hpl.hp.com/personal/Jean_Tourrilhes/Linux/Wireless.html

https://gullfoss2.fcc.gov/prod/oet/cf/eas/reports/ViewExhibitReport.cfm?mode=Exhibits&RequestTimeout=500&calledFromFrame=N&application_id=146007&fcc_id='ANO20020200BRX'

R40 can use

Cisco Aironet Wireless 802.11b

Intel PRO/Wireless LAN 2100 3B Mini PCI Adapter

IBM 11a/b/g Wireless Lan Mini PCI Adapter

IBM High Rate Wireless LAN Mini PCI Adapter III

To confirm which one is in your R40, we can check the FCC code on the R40 back. Then comparing the code in

http://www-306.ibm.com/pc/support/site.wss/document.do?lndocid=MIGR-43693

To confirm the chipset in the wireless card, we need to check the Device ID of your wireless card the use google to find the OEM manufacturer. so that you may find the compatible linux driver.