RPi Ralink WLAN devices
How configure RALink based devices on Official Distro (Raspbian)
Source: mikma.eu
1) sudo apt-get install wpasupplicant
2) sudo apt-get install firmware-ralink
3) sudo wpa_passphrase NetworkEssid password
4) sudo joe /etc/wpa_supplicant.conf - paste text from step 3, remove the passkey line
network={ ssid="NetworkEssid" psk=945609a382413e64d57daef00eb5fab3ae228716e1e440981c004bc61dccc98c }
5) sudo wpa_supplicant -Dwext -iwlan0 -c/etc/wpa_supplicant.conf - ctrl+c to stop
6) sudo joe /etc/network/interfaces - add:
auto wlan0 iface wlan0 inet dhcp wpa-driver wext wpa-conf /etc/wpa_supplicant.conf
7) sudo ifup wlan0
Useful tools:
ifconfig iwconfig lsusb