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HOW TO: Configure Digi NEO Port Settings to Stay After Reboots or Port Closure in Linux


The stty or ditty.dgnc settings do not stay configured on the ports and revert to 9600/8/1/None whenever the ports are opened/closed or after the system is rebooted.

It is typical behavior in UNIX to revert port settings to default values when a port is opened/closed.

Create a startup file that is executed after the dgnc driver module is loaded.

Here is an example, create and edit a file called: /etc/rc5.d/S95dgnc_ditty

The following entries, will configure the port for 4800 baud and software flow control for port 1:

cat < /dev/ttyn1a > /dev/null &
ditty.dgnc 4800 ixon ixoff -ixany ttyn1a

Link it to the /etc/init.d directory:

ln -s /etc/rc5.d/S95dgnc_ditty /etc/init.d/dgnc_ditty

Last updated: Jan 16, 2024

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