sudo wpa_supplicant -i ath0 -D madwifi -c /etc/wpa_supplicant.conf
Trying to associate with ce:ce:fd:c6:36:00 (SSID='zeubuntu' freq=2457 MHz)
ioctl[IEEE80211_IOCTL_SETMLME]: Invalid argument
Association request to the driver failed
Associated with ce:ce:fd:c6:36:00
CTRL-EVENT-TERMINATING - signal 2 received