Toshiba Satellite A75 - With Internal Wireless Card - Config

Hi friends

My laptop have a internal WL card that 'm trying ti configure.... ( Knoppix 3.8.1) , when I (as root) write

wlcardconfig .. the message "No Wireless Card Found" .....

What can I Do ?

At lspci this information shows

Ethernet controller: Atheros Comunications, Inc. AR5212 802.11abg NIC (rev.01)
Ethernet controller: Realtek Semiconductor Co., Ltd. RTL-8139/8139C/8139C+ (rev.10)

I assume that I have to config to module with modconf but i can find the module

Who can oriented me ?????

thanks a lot

Frank