Thanks,

In the new light of the morning I did go back and read the docs - and I found what I was missing.

from https://hub.docker.com/r/linuxserver/domoticz

Passing Through USB Devices
To get full use of Domoticz, you probably have a USB device you want to pass through. To figure out which device ...

I've recently rebuilt a headless Raspberry Pi 3B+ with Domoticz in a Docker container.

When I attempt to add RFLink USB Gateway, the Serial Port dropdown is blank and does not allow a manual entry. What am I missing? It worked on the same hardware in the previous build.

Thanks,

Domoticz Version ...

Earlier today, I added PIMonitor - latest version from git hub to my v4.11786 install of (Docker)Domoticz on a raspberry pi 3B+. Of the 17 devices created only, CPU temp amd CPU count have any data - the remainder are all blank or zero. Here are the log messages that are repeated every minute or so ...