http://c-over-d.blogspot.co.uk/2012/10/use-for-pi.html?m=1

Install right firmware
sudo apt-get install firmware-ralink

http://sirlagz.net/2012/08/09/how-to-use-the-raspberry-pi-as-a-wireless-access-pointrouter-part-1/

Written by Knilluz on 30 October 2012 at 07:43