I’ve worked in environments where USB is 100% disabled, including HID. Today, I ... | Hacker News

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		datanut 6 months ago \| parent \| context \| favorite \| on: A note on the USB-to-PS/2 mouse adapter that came ... I’ve worked in environments where USB is 100% disabled, including HID. Today, I believe but can’t find an affirmative document, that some motherboards have an option to hijack USB HID mouse & keyboards and present them to the OS as something other than USB.

rasz 6 months ago [–]

"Legacy USB support" is exactly this, uses SMM/ring -2 software routine to pass data from USB devices into emulated legacy 8042 keyboard & mouse.

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