That was a journey. Single dev, complete FireWire stack from scratch: OHCI, isoch, async. DriverKit+PCIDriverKit+AudioDriverKit Bonus: FireWire audio - some of my older code was reused from previous experiments. @sakamocchi.jp - thanks for help :)

@sakamocchi.jp have you ever thought on reversing mLAN protocol?
source: Implementing Digital Audio Devices for
the IEEE 1394 High Performance Serial Bus
Bob Moses
PAVO, Inc.
I'm just curious — it's not call to action :)

Tired of recompiling just to tweak a parameter.
Moving to a GUI — time to stop suffering.

GitHub: github.com/mrmidi/FireW...
Discord: discord.gg/c82rmSEEPY

I did it. Apogee Duet FireWire on macOS sequoia (arm) without AppleFWAudio.kext

Well, got myself FireWire packet sniffer :)

I've skipped 0x00ff0000 part. I don't have an idea where it comes from.

When executing these commands, I always get the first byte of the response as 0x08 (not implemented). I suspect I might be missing some kind of initialization step or specific setup. I’ve tried various commands, including those from the snd-firewire-ctl-services tests, but so far, without success.

Кошка Тиса запрещает мне программировать безальясинговые пилообразные осцилляторы в c++