alt Hacker News> ChatGPT is wrong. The DFU port does go through a USB controller with firmware. [1]
> [1] https://asahilinux.org/docs/hw/soc/usb-pd/
What in your linked page made you conclude this? Your link references https://web.archive.org/web/20211023034503/https://blog.t801..., which clearly states that ACE is a port controller - this is not the same as a "USB controller".
Doesn't that linked webarchive page say specifically that the ACE is a "Apple/TI co-designed USB Type-C Port Controller"
If that isn't a "USB Controller" what do you mean when you say "USB Controller"?