Comment 30 for bug 203793

The problem is not in Ubuntu, but rather in the main kernel. Details here:

http://www.intellinuxwireless.org/bugzilla/show_bug.cgi?id=1507

Currently the developers are working on it. I guess that when the patch will be ready, it will be included in the linux or linux-backports packages...I hope. Otherwise, we will all have to install the modules through compat-wireless :-/