How do I install or update the RealPort drivers for my Digi PortServer on Linux?

To use the Digi PortServer, you’ll need to install the appropriate RealPort drivers for your kernel.

Additionally, any time the kernel is upgraded, you’ll need to recompile and reinstall the drivers. As such, it is important to plan your kernel upgrades in advance and perform testing after the first boot using a new kernel.


Installing or Upgrading the Digi RealPort Drivers

If the drivers are already installed, uninstall the existing drivers:

rpm -e dgrp

Download the latest drivers, for example:

mkdir -p /esupport/digi && cd /esupport/digi
wget -c

Download and install the Red Hat kernel source:

yum -y install kernel-headers-`uname -r` kernel-devel-`uname -r` rpm-build gcc ncurses-devel

Compile the drivers:

rpmbuild --rebuild /esupport/digi/40002086_U.src.rpm

Install the drivers:

rpm -Uvh /usr/src/redhat/RPMS/x86_64/dgrp-1.9-33.x86_64.rpm
rpm -Uvh /root/rpmbuild/RPMS/x86_64/dgrp-1.9-33.x86_64.rpm

Edit udev to set permissions for tty devices:

vim /etc/udev/rules.d/10-dgrp.rules

Locate the “tty_dgrp” entry, and modify it as displayed below:

KERNEL=="tty_dgrp*", PROGRAM="/usr/bin/dgrp_udev %k", NAME="%c", GROUP="lp", MODE="0666", OPTIONS="last_rule"

Adding Digi Ports to Linux

If this is a new Digi, setup the ports in the following manner:

dgrp_cfg_node init (ttyid) (ip_address) (number_of_ports)

Example (change the IP address and number of ports to match your device):

dgrp_cfg_node init D 1

Starting the Digi Service

When the drivers have been installed, and the ports have been configured, start the Digi service to activate the serial ports:

service dgrp_daemon restart

Adding Digi Ports to VSI-FAX

If you are configuring VSI-FAX for the first time, or if you’re adding a new fax modem to your environment, you’ll need to make VSI-FAX aware of the new modem’s serial port location. For example, to create a new modem called modem1 at the serial port location /dev/ttyD00:

vfxadmin device -a -d -v /dev/ttyD00 modem1

After adding the modem to VSI-FAX, you will also need to add the modem to the default fax “pool” or class. To add the new modem1 to the default fax “pool” named fax1:

vfxadmin class -d -a modem1 fax1

2 thoughts on “How do I install or update the RealPort drivers for my Digi PortServer on Linux?”

  1. Can you please explain how to edit the “tty_dgrp” entry? How are you able to enter/save the entry?

    1. The instructions are to use the vim text editor (though any text editor will work) to open the “/etc/udev/rules.d/10-dgrp.rules” file for editing, locate the line containing “tty_dgrp”, make the changes and save the file.

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