Readopting Linux: Edimax EW-7811Un Installation

I had some problems with this one. (It gave me trouble on Windows as well.) I found instructions that worked for me here, about halfway down: wireless – Is there a standard WiFi driver for the Edimax EW-7811Un? – Ask Ubuntu

sudo apt-get update 
sudo apt-get install git build-essential linux-headers-generic dkms
git clone --depth 1
cd rt8192cu
sudo make dkms