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/
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 2.6.15- 20-386/ acx/2.3. 1.31/
/lib/firmware/