This is a Linux ppdev userspace driver for a small card reader made by Nixdorf, equipped with the buffer board 377.01. This board encodes the 12 bit punch card code (H code) to 8 bit, by compressing row 1 to 7 to only 3 bits.
The connection is established via a self made cable from a pseudo standard Siemens plug to IEEE 1284 and to the power supply of the card reader.
Project started in February 2009, coding the very first driver started at Sunday, 22. March 2009.
Copyright 2009 Sven Koeppel, GNU Public License applies here like to the complete project.