auto wlan0
iface wlan0 inet dhcp
    pre-up devmem 0x100C0080 32 0x530
    pre-up echo 7 > /sys/class/gpio/export
    pre-up echo out > /sys/class/gpio/gpio7/direction
    pre-up echo 0 > /sys/class/gpio/gpio7/value
    pre-up modprobe mac80211
    pre-up modprobe mt7601sta
    pre-up (sleep 3; wpa_supplicant -B -D wext -i wlan0 -c /etc/wpa_supplicant.conf)
    post-down killall -q wpa_supplicant
    post-down echo 1 > /sys/class/gpio/gpio7/value
    post-down echo 7 > /sys/class/gpio/unexport
iface portugal inet dhcp
iface barcelona inet dhcp