A friend wants to add a commercial RFID reader / keypad with Wiegand output to a project so I thought it would be fun to write a driver for him. It does work (I've compared to a Proxmark3) but I'm always happy to get a code review in case I looked past something in the stress of trying to get everything to work.
Thanks for any feedback you wish to offer ( on the code -- not on me! <grin> )
It's Jon or JonnyMac -- please do not call me Jonny.