Hello all, I would like to develop a driver for the Validity 0091 sensor available on the Dell XPS13/15 9X60.
I would say I have the driver reverse engineered to 95% (There might be a few things I still don’t understand from the internal state machine). https://github.com/hmaarrfk/Validity91 WIP: https://github.com/freedesktop/libfprint I found the libfprint source, can compile it, and started creating my own driver. However, I am confused about the internal workings of libfprint and the functions I need to define. I tried to follow examples that were included, but it seemed that they were mostly “swipe”‘ sensors, and not capacitive style sensor. Is there any good documentation about the state machines I need to implement with regards to the functions .open = dev_open, .close = dev_close, .activate = dev_activate, .deactivate = dev_deactivate, .change_state = dev_change_state, Thanks, Mark
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