I wrote one that decodes Wiegand[0] off of GPIO. I ended up not using it because epoll-ing the pins is easier to use from a userspace perspective and fast enoug

I wrote one that decodes Wiegand[0] off of GPIO. I ended up not using it because epoll-ing the pins is easier to use from a userspace perspective and fast enough to capture the transmission. I loosely based the kernel module off of one that was written for another microcontroller[1]. [0]: https://en.wikipedia.org/wiki/Wiegand_interface https://en.wikipedia.org/wiki/Wiegand_interface [1]: https://github.com/rascalmicro/wiegand-linux https://github.com/rascalmicro/wiegand-linux