I did some ACPI reverse engineering on an old Toshiba laptop some years ago, with the goal of improving the Linux ACPI drivers. Learnt a lot from it, and wrote

I did some ACPI reverse engineering on an old Toshiba laptop some years ago, with the goal of improving the Linux ACPI drivers. Learnt a lot from it, and wrote a blog post that you might find interesting: https://vorpal.se/posts/2022/aug/21/reverse-engineering-acpi-functionality-on-a-toshiba-z830-ultrabook/ https://vorpal.se/posts/2022/aug/21/reverse-engineering-acpi... (100% human written, and I hate that I have to specify that these days).