Reverse engineering the Creative Katana V2X soundbar to be able to control it from Linux

I recently purchased a Creative Sound Blaster Katana V2X soundbar (what a mouthful) to replace my old, cheap Logitech computer speakers. They served me well, but listening to music or watching movies was not the best-sounding experience. After arriving, I set it up and realized it had an USB port which, aside from being able to use it as an audio input, allows the user to configure the speaker:…