LPT-port support becames standard option: adapter is mounted inside the DB25 socket. Now the full version of the CRISS MPS adapter looks like one on the picture (pre-release version): MPS socket combines keyboard, RS-232 and LPT. After finishing testing PCB and schematic will be published here. Now versions of the firmware will come with LPT support. LPT also can be used as standard 24-port GPIO.