https://manpages.ubuntu.com/manpages/focal/man4/rp.4freebsd.html
Ubuntu Manpage: rp - driver for Comtrol RocketPort Intelligent Serial Port Cards
driver for Comtrol RocketPort Intelligent Serial Port Cards
serial portubuntumanpagerpdriver
https://my.comtrol.com/index.php
Pepperl+Fuchs Comtrol HPD - Login
Support for Pepperl+Fuchs Comtrol's Hospitality Products division and Lodging Link.
pepperl fuchscomtrolhpd
https://manpages.ubuntu.com/manpages/resolute/man4/rp.4freebsd.html
Ubuntu Manpage: rp - driver for Comtrol RocketPort Intelligent Serial Port Cards
driver for Comtrol RocketPort Intelligent Serial Port Cards
serial portubuntumanpagerpdriver