Atheros AR 928x and madwifi.

Hi, i just purshased a new laptop ,a sony vaio FW series and it comes with an Atheros AR 928x that wireless card gave me a lot of problems ,so i tried to install madwifi 0.9.4 which is the latest and different versions and still wifi not detected ,please is there anyone that had this issue before...need help thank you.

i hope this will help you