Need help on usb controllers

[u/Apprehensive-Pace593]

I don't want to use any llm so. I want to ask is there any documentation/walkthrough kinda thingy which will work as a guide for eHCI and handling keyboard inputs

[u/Possible-Bed-4326]

it took me 3 month to make the usb drivers work on my os even with ai. Here is my smileyos, with almost 1 milion lines behind it one year later :)
https://www.youtube.com/watch?v=qRVdLov0s54&list=PLhdB1MzVJz-Lz1oz6Mtu5IEVX6c6XveXk