Hi list,

does anyone know of a good way to get more information about HIDs on Mac OS? Currently a colleague is using [hidraw] on a MacBook Pro 14" 2021 M1 MacOS 14.1.2 and is trying to understand what some of the reported sensor values represent. He has found out that one of the devices reports the angle of the laptop display hinge, another device reports many many values, of which about 24 are constanly changing. It is still difficult to figure out what they mean.

Is there a tool which queries this, or some documentation I haven't yet found using a web search engine?

Thank you for all pointers, Peter