[Prism54-devel] USB patch

[Jean-Baptiste Note]

Hello,

This is a patch that should apply with patch -p1 against a checkout of
the prism54 usb module in CVS, and that allows rmmod-ing the prism54u
module (it works at least for me).

Also, if anyone's interested, the usb dongle works fine on vmware
(downloadable workstation version, kernel 2.6.7) + windows 2000 + latest
drivers from linksys website, which allows me to work with dumps of the
windows driver. Based on this, i hope to make real progress soon.

Thank you,
JB