Module                  Size  Used by
wlan_tkip              11520  0
wlan_scan_sta          11776  1
ath_pci                81316  0
ath_rate_sample        11008  1 ath_pci
ath_hal               191312  3 ath_pci,ath_rate_sample
wlan_ccmp               7808  0 
wlan                  164956  6 wlan_tkip,wlan_scan_sta,ath_pci,
                                ath_rate_sample,wlan_ccmp