You have two options in configuring your printers with Linux drivers.
set port dev=rp ra=12
This example sets PortServer port 12 to be a RealPort device.
Note: If your Digi One RealPort or PortServer firmware does not support the dev=rp option, use dev=prn instead.
set port altpin=on ra=12
This example sets altpin=on for port 12 of a PortServer.
DG01:2345:once: cat < /dev/ttyaa11 > /dev/null
&
dg01:2345:once: ditty-rp 38400 ctspace altpin -ixon
-ixoff -ixany /dev/ttyaa11
The device /dev/ttyaa11 is used as an example here. Substitute your particular device name in the previous commands. This example also sets the port speed to 38400, enables altpin, enables hardware flow control (ctspace and rtspace) and disables software flow control (-ixon, -ixoff, -ixany) on the port. Configure the ditty-rp parameters as required by your specific printer and cable configuration. For more information on ditty-rp, see Setting TTY Options.