Comment 173 for bug 134660

Ok, the kernel driver itself does not work. So an external version seems to be the only solution. I finally managed to (hopefully) solve the dependencies and have placed a tarball into http://people.ubuntu.com/~smb/rt2x00-test/ which does build on my machine and also provides modules I can load (but lacking the real hardware I could not do any real testing). To build the modules, unpack the tarball run "make" and "make install". This will place the modules in the /lib/modules into updates. After depmod -ae an modprobe -l for the module should return the updates path. To boot with the modules an additional update-initramfs would be required.
If anybody can give that a try and feedback, that would be much appreciated.