lo        no wireless extensions.

eth0      no wireless extensions.

usb0      no wireless extensions.

wlan0     Ralink STA  ESSID:""  Nickname:"RT2870STA"
          Mode:Auto  Frequency=2.462 GHz  Access Point: 00:1E:2A:E9:46:A6   
          Link Quality=100/100  Signal level:0 dBm  Noise level:-115 dBm
          Rx invalid nwid:0  Rx invalid crypt:0  Rx invalid frag:0
          Tx excessive retries:0  Invalid misc:0   Missed beacon:0