# The vlsys_m428 driver

## General

The vlsys_m428 driver handles the VFD/IR combination from VLSystem built into the case MonCaso 320 from the manufacturer Moneual. The driver functionality is rudimentary as it is derived from a reverse engineering from the Windows driver behaviour.

This driver writes only to the serial port, and it triggers no transmission activity of the combination. Thus, it cooperates with drivers reading only from the port. Other drivers are allowed to initialize the combination for IR operation.

The vlsys_m428 driver assumes the character encoding ISO 8859-1. Note: The mapping from the character encoding to the display encoding is not complete; furthermore some characters are approximated by similar ones.

## Configuration

The only configuration parameter is `Device`, the path name of the serial device (a mapper between USB and serial line emulation). By default it is `/dev/ttyUSB0`.