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Full Version: Interesting....reverse engineered USB protocols
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...for the HP Prime...
https://github.com/eried/PrimeComm
Its changed quite a bit since then. The underlying commands not so much, but we discovered that the windows HID driver just silently loses packets on occasion. Thus there is not a layer on top that will bounce back and forth between the connkit and usb calculator to request packets that were missed.

I believe the original as implemented there will still work, but it won't be as reliable or take advantage of later features like compression during transmission and similar.
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