wpa_supplicant with ipw3945

[John Dey <jsdey@xxxxxxxxxxxxx>]

Hi,

I have a wireless working on fc6 i386 without encryption  When I set 
the linksys router to:

securtiy mode: wpa2 persenal
wpa algorithm: TKIP+AEP
Group key renewal: 3600

Then I set the key  and other items in wpa_supplicant.conf and try to 
start wpa_supplicant with -D ipw3945 I get an error that ipw3945 is not 
supported.

I am not very familiar with encrypted wireless.  Is there a good Howto? 
 Any guidance will greatly appreciated.  Thanks.

John