How to change my current WiFi Driver to ath9k.

Hi List,
Greetings.

I have a madWiFi Driver
I would like to replace it with ath9k driver.
Which files will i need to remove from the host stack and which will i have to add.
Particularly there are also files like art.ko ath_hal.ko etc. etc.
By the way i have cross compiled the ath9k driver but the problem lies that i am not able to figure out the dependencies.

Thanks
Regards
Abbas Chunawala
(System Level Solutions (I) Pvt. Ltd. )