I lost my functionality on my BCMWL 4352 when I upgraded to 22.04. Has worked fine for many years and many upgrades. I skipped from Ubuntu 18LTS to 22.04. Went back and installed 20(.04?) and the hardware does still work. I've tried purging bcmwl-kernel-source and reinstalling but it always fails. Here is the message in the make.log that has been the issue throughout everything I have tried:
DKMS make.log for bcmwl-6.30.223.271+bdcom for kernel 5.15.0-56-generic (x86_64)
Fri Jan 27 05:04:12 PM MST 2023
make: Entering directory '/usr/src/linux-headers-5.15.0-56-generic'
ERROR: Kernel configuration is invalid.
include/generated/autoconf.h or include/config/auto.conf are missing.
Run 'make oldconfig && make prepare' on kernel src to fix it.
make: *** [Makefile:750: include/config/auto.conf] Error 1
make: Leaving directory '/usr/src/linux-headers-5.15.0-56-generic'
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