RFXTRX not compatible with RPi5

Hardware
1

A year ago I needed to buy a new RFXTRX antenna because my rolling shades used a protocol not supported by the older antenna. Then I was forced to move from a Raspberry Pi 3+ to a Pi5 because it was no longer supported by Home Assistant. I have been gradually using the move to clean up old config, only migrating over what I still need. One of the last things was plugging in the RFXTRX into the USB port. And that’s when I found out that the RFXTRX is not supported anymore by the RPi 5. Something about an older FTDI chip that is not compatible with the Pi 5 USB‑stack.

This kind of seems contrary to Home Assistant wanting to be able to also use older devices. Is there something that can be done? Additional / backward compatibility built into Home Assistant?
AI research tells me to replace the FTDI chip, but I am a bit weary of that…

2

It’s not a Home Assistant issue, it’s ancient hardware. The FTDI USB‑serial chipset in the RFXtrx transceiver module is incompatible with the Raspberry USB hardware. (It supports X-10; you can’t get more ancient than X-10).

Try using a powered USB2.0 hub between the Pi and the RFXtrx transceiver. Not sure it would work but it does separate the FTDI in the transceiver from the USB hardware in the Raspberry.

3

The RFXTRX is an old model, I suppose it is an RFX-433EMC.
In that case use MQTT on the RFX-433EMC with Home Assistant.