Missing serial devices on drop-down serlial list for Modbus Serial Slave configuration (Paper UI)

Hi All,

is there any way to add additional device files to the Serial Port drop-down list (Modbus Biding configuration)?

I created SYMLINKS to /dev/ttyUSB0, /dev/ttyUSB1, … files

How make the symlinks devices available on drop-down list?
I know that I can setup this manually in modbus.cfg file, but I would like to know if this is possible via Paper UI interface.

Thank you in advance for replays

Not other than following the documentation and modifying EXTRA_JAVA_OPTS.

If you use this tutorial How to make symlinks for usb ports in linux (EXTRA_JAVA_OPTS) they are visible in the drop-down list in paper ui.


Thank you both of you.
I set EXTRA_JAVA_OPTS="-Dgnu.io.rxtx.SerialPorts=/dev/rs485_1" and issue is solved.

Thank you.