this post was submitted on 09 Nov 2025
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Linux

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How to reverse engineer USB HID on Linux (popovicu.com)
submitted 16 hours ago by cm0002@europe.pub to c/linux@programming.dev
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I recently added a UPS to my server rack to keep my internet and home network running during a power outage. After unpacking it, I investigated its USB port and discovered it wasn’t for powering other devices. Instead, it connects to a host computer to provide information like battery charge status, remaining runtime, and current load.

I wanted to access this data without relying on third-party software, so I decided to see if I could reverse-engineer the protocol using Linux.

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[–] mormund@feddit.org 10 points 10 hours ago

Interesting topic, but the random usage of "AI" to do things because they did not want to x, followed by them doing x anyways a paragraph down was weird. Also all the xitter LinkedIn style posts and pages of slop code made it awful to read...