hilda @ root -> /tmp # ifconfig wifi0 up
hilda @ root -> /tmp # iwconfig
lo        no wireless extensions.

eth0      no wireless extensions.

sit0      no wireless extensions.

wifi0     no wireless extensions.

ath0      IEEE 802.11b  ESSID:""
          Mode:Managed  Channel:0  Access Point: Not-Associated
          Bit Rate:0 kb/s   Tx-Power:18 dBm   Sensitivity=0/3
          Retry:off   RTS thr:off   Fragment thr:off
          Encryption key:off
          Power Management:off
          Link Quality=0/94  Signal level=-95 dBm  Noise level=-95 dBm
          Rx invalid nwid:0  Rx invalid crypt:0  Rx invalid frag:0
          Tx excessive retries:0  Invalid misc:0   Missed beacon:0

hilda @ root -> /tmp # iwlist ath0 scan
ath0      Interface doesn't support scanning : Invalid argument

hilda @ root -> /tmp # iwlist ath0 scanning
ath0      Interface doesn't support scanning : Invalid argument

hilda @ root -> /tmp #