Hi HC1LNM
I succeeded to compile and install ASL 2.0 manualy, but on a Debian 10 and I had to downgrade the kernel version to be compatible with the linux headers available.
You must do :
apt -y install asl-raspberrypi-kernel
apt -y install asl-raspberrypi-kernel-headers
BUT with the right kernel version for Debian 11.
I don’t think this is available.
73 Patrick