For plugging a TP-LINK TL-WDN3200 into a Raspberry Pi.
Information gathered from other sites - shame it doesn't work!
Get kernel and make headers
sudo -s
cd /usr/src
wget https://github.com/raspberrypi/linux/tarball/rpi-3.2.27
tar -zxf rpi-3.2.27
cd raspberrypi-linux-*
zcat /proc/config.gz > .config
wget https://github.com/raspberrypi/firmware/raw/master/extra/Module.symvers
make oldconfig
make modules_prepare
KSRC=$(pwd)
pushd /lib/modules/`uname -r`
ln -s ${KSRC} source
ln -s ${KSRC} build
popd
pushd /usr/src
ln -s ${KSRC} linux-`uname -r`
ln -s ${KSRC} linux
popd
exit
Get RT5572 source and make module
sudo -s
cd /usr/src
wget http://www.ctheroux.com/publicfiles/DPO_RT5572_LinuxSTA_2.6.0.1_20120629_EDITED.tar.bz2.bz2
tar -jxf DPO_RT5572_LinuxSTA_2.6.0.1_20120629_EDITED.tar.bz2.bz2
cd DPO_RT5572_LinuxSTA_2.6.0.1_20120629
make
make install
exit
RT5572 is mentioned on: RaspberryPi TP-LINK TL-WDN3200