Ralink Driver:
wpa_supplicant -B -Dralink -i -wlan0 -c /etc/wpa_supplicant.conf
phy0 -> rt2x00lib_request_firmware: Error - Failed to request Firmware.
Could not set interface wlan0 flags: No such file or directory
RALINK: Driver does not support wpa_supplicant
Failed to initialize driver interface
ELOOP: remaining socket: sock=4 eloop_data=0x80ae838 user_data=(nil) handler=0x8094a30

WEXT Driver:
wpa_supplicant -B -Dwext -i wlan0 -c /etc/wpa_supplicant.conf
phy0 -> rt2x00lib_request_firmware: Error - Failed to request Firmware.
Could not set interface wlan0 flags: No such file or directory
Failed to initialize driver interface

iwconfig:
lo     no wireless extensions.

wlan0  IEE 802.11bg Mode:Managed Access Point: Not-Associated
       Tx-Power=0 dBm
       Retry  long limit:7 RTS thr:off Fragment thr:off
       Encryption Key:off
       Power Management:on

eth0   no wireless extensions

eth1   no wireless extensions