Linux-2.6.33.2/Documentation/networking/mac80211_hwsim/wpa_supplicant.conf

ctrl_interface=/var/run/wpa_supplicant

network={
	ssid="mac80211 test"
	psk="12345678"
	key_mgmt=WPA-PSK
	proto=WPA2
	pairwise=CCMP
	group=CCMP
}