Solution:
Installing the dgnc driver in Debian Linux version 3 (Source RPM):
First verify you have the matching kernel-source installed on your system:
# ls -l /usr/src
A directory called kernel-source followed by the version number which must match your kernel (uname -r) will exist if the kernel-source is installed. If not, please install the matching kernel source from your media or preferred download source.
Create a symbolic link:
# ln -s /usr/src/kernel-source(version) /usr/src/linux
Download the latest source rpm driver from the Digi website http://www.digi.com/support.
Change directory to where the src.rpm file is located:
# script
# rpmbuild --rebuild 40002369_x.src.rpm
Where "x" represents the actual driver revision letter.
# cd /usr/src/rpm/RPMS/i386
# alien -d (driver_name).i386.rpm
# dpkg -I (driver_name).deb
# /etc/init.d/dgnc start start
# exit
To load the module upon system reboot:
# update-rc.d dgnc start defaults 70
A successful installation will create ttyn#x devices in the /dev directory (/dev/ttyn1a through ttyn1h for an 8 port adapter). If the installation generated errors, please e-mail the typescript file created in the directory where you began the installation to: Support Wizards for analysis.