Comment 6 for bug 30766

also, every kernel upgrade requires you to overwrite tiacx111c16 in the new kernels firmware directories.

So for kernel 2.6.15-19-386 you overwrite it in /lib/firmware/2.6.15-19-386/acx/2.3.1.31/

and for kernel 2.6.15-20-386 you overwrite it in
/lib/firmware/2.6.15-20-386/acx/2.3.1.31/