Please read the Sticky at the top of the Newbie forum on how to ask questions the smart way.
i have redhat installed in my laptop with gnome.
What version of Red Hat? 32 bit or 64 bit?
Firstly a quick Google indicates this is not a "chipset" but a WLAN adapter?
Secondly, what model are you using?
[root@localhost ~]# /sbin/modprobe ath5k
FATAL: Module ath5k not found.
[root@localhost ~]# /sbin/modprobe ath9k
FATAL: Module ath9k not found.
I'm really not sure why you're trying to do this? What are ath5k and ath9k? Does your device not come with a set of drivers which you can install and thereafter reboot (in order to refresh kernel parameters if any)?