DOSBox USB to Serial RS232 on Linux

To setup a USB to serial converter to use with DOSBox on Linux:

  1. Note device ID for USB to serial adapter. Probably /dev/ttyUSB0.
    ll /dev/ttyUSB*
    
  2. allow non-sudo serial port access
    adduser $(whoami) plugdev
    chmod 666 /dev/ttyUSB0
    

    logout and login

  3. Edit ~/.dosbox/dosbox*.conf, under [serial] modify the serial1=dummy:
    serial1=directserial realport:ttyUSB0
    
  4. DOSBox should work with serial device on COM1

Notes

DOSbox config manual

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