Linux Serial Ports

To determine what physical serial ports are named in Linux, run the following command:

dmesg | grep tty

To allow Ignition to connect to a serial port, check the group permission on the serial port using the following command:

ls -l /dev/ttyS*

Most likely the group is dialout, so to add the ignition user to the dialout group, use the following command:

sudo groupadd -a -G dialout ignition