root@OpenWrt:~# iwlist scan
lo        Interface doesn't support scanning.

eth0      Interface doesn't support scanning.

br-lan    Interface doesn't support scanning.

wifi0     Interface doesn't support scanning.

ath0      Scan completed :
          Cell 01 - Address: 00:16:01:0F:C3:C3
                    ESSID:"dd-wrt"
                    Mode:Master
                    Frequency:2.462 GHz (Channel 11)
                    Quality=34/94  Signal level=-61 dBm  Noise level=-95 dBm
                    Encryption key:off
                    Bit Rates:1 Mb/s; 2 Mb/s; 5.5 Mb/s; 11 Mb/s; 18 Mb/s
                              24 Mb/s; 36 Mb/s; 54 Mb/s; 6 Mb/s; 9 Mb/s
                              12 Mb/s; 48 Mb/s
                    Extra:bcn_int=50
          Cell 02 - Address: 00:0D:0B:AE:C6:23
                    ESSID:"local"
                    Mode:Master
                    Frequency:2.412 GHz (Channel 1)
                    Quality=63/94  Signal level=-32 dBm  Noise level=-95 dBm
                    Encryption key:off
                    Bit Rates:1 Mb/s; 2 Mb/s; 5.5 Mb/s; 11 Mb/s; 18 Mb/s
                              24 Mb/s; 36 Mb/s; 54 Mb/s; 6 Mb/s; 9 Mb/s
                              12 Mb/s; 48 Mb/s
                    Extra:bcn_int=100
          Cell 03 - Address: 00:13:10:09:04:5A
                    ESSID:"longshot"
                    Mode:Master
                    Frequency:2.437 GHz (Channel 6)
                    Quality=19/94  Signal level=-76 dBm  Noise level=-95 dBm
                    Encryption key:off
                    Bit Rates:1 Mb/s; 2 Mb/s; 5.5 Mb/s; 11 Mb/s; 18 Mb/s
                              24 Mb/s; 36 Mb/s; 54 Mb/s; 6 Mb/s; 9 Mb/s
                              12 Mb/s; 48 Mb/s
                    Extra:bcn_int=100
          Cell 04 - Address: 00:80:48:3D:FE:E1
                    ESSID:"dd-wrt"
                    Mode:Master
                    Frequency:2.462 GHz (Channel 11)
                    Quality=21/94  Signal level=-74 dBm  Noise level=-95 dBm
                    Encryption key:off
                    Bit Rates:1 Mb/s; 2 Mb/s; 5.5 Mb/s; 11 Mb/s; 6 Mb/s
                              9 Mb/s; 12 Mb/s; 18 Mb/s; 24 Mb/s; 36 Mb/s
                              48 Mb/s; 54 Mb/s
                    Extra:bcn_int=100