I can understand your frustration. It seem that the Pcmcia adapter from Lucent are a big source of trouble, we have many instance of them not working the way they should under Linux or Windows.
For the spec of Pcmcia, I would start in the Pcmcia Howto.
For the spec of the Wavelan, Lucent has published a very short document. It's almost useless, and looking in the driver is uselly more useful, anyway it's on Andy's page :
Now, if you are hacking the driver, you may want to synchronise with the others doing it, in particular Harald and Benjamin. Check details on my web page :
Good luck !