There is supposed to be a package that automatically handles building a (presumably patched) version of the kernel module for this wifi/bt chip, called `aic8800-usb-dkms`, but for some reason, a kernel upgrade doesn't auto-trigger it. During the last kernel upgrade, I was able to get it working by manually doing `sudo dpkg-reconfigure aic8800-usb-dkms`, but that also does not work since 26.5.1, as it gives
Deleting module aic8800-usb-4.0+git20250410.b99ca8b6-3 completely from the DKMS tree.
Loading new aic8800-usb-4.0+git20250410.b99ca8b6-3 DKMS files...
Building for 6.18.2-current-qcs6490
Building initial module for 6.18.2-current-qcs6490
Error! Bad return status for module build on kernel: 6.18.2-current-qcs6490 (aarch64)
Consult /var/lib/dkms/aic8800-usb/4.0+git20250410.b99ca8b6-3/build/make.log for more information.
And that file basically says (a bunch is redacted for brevity):
DKMS make.log for aic8800-usb-4.0+git20250410.b99ca8b6-3 for kernel 6.18.2-current-qcs6490 (aarch64)
Sat Jun 20 06:36:14 PM PDT 2026
make: Entering directory '/usr/src/linux-headers-6.18.2-current-qcs6490'
make[1]: Entering directory '/var/lib/dkms/aic8800-usb/4.0+git20250410.b99ca8b6-3/build/USB/driver_fw/drivers/aic8800'
warning: the compiler differs from the one used to build the kernel
The kernel was built by: aarch64-linux-gnu-gcc (Debian 14.2.0-19) 14.2.0
You are using: gcc (Ubuntu 13.3.0-6ubuntu2~24.04.1) 13.3.0
...
gcc: error: unrecognized command-line option ‘-fmin-function-alignment=8’; did you mean ‘-flimit-function-alignment’?
gcc: error: unrecognized command-line option ‘-fmin-function-alignment=8’; did you mean ‘-flimit-function-alignment’?
make[4]: *** [/usr/src/linux-headers-6.18.2-current-qcs6490/scripts/Makefile.build:287: aic_load_fw/aic_txrxif.o] Error 1
...
Apparently, the kernel is now built with gcc 14 (which matches the default in Debian Trixie images but not Ubuntu Noble images which have gcc 13). Not sure how to resolve that inconsistency.
1. Install & replace gcc 13 with gcc 14 (just installing won't work as this dkms module build doesn't respect CC env vars); not sure if this will break other things in Ubuntu 24.04
2. Rebuild the kernel with gcc 13; same issue will re-occur on the next kernel upgrade
3. Or something else
Just out of curiosity, did you have to mess around with gcc versions to get it to compile (or are you using Debian Trixie images)?
