#RPi5 running HAOS - USB not able to connect to STM32 Virtual Serial Port device

1 messages · Page 1 of 1 (latest)

rancid willow
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I get consistently connection refused when I plug in the device. Seems that either the driver is missing, or that VSPs are not recognised as valid USB devices to create a /dev/ttyUSB0 or /dev/ttyACM0 type serial port on the RPI

I remember that years ago when I has similar problem on an RPI4 the trick was to somehow manually edit the confix.txt file in the /boot partition of the device. However, seems that option is not even easily possible now with more modern Windos laptops or WSL subsystems.

Any help much appreciated, and realise that the fix may be trivial in the end.

novel garden
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can you check Settings > System > Hardware > All Hardware if the device is recognized in haos?

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Try usb2.0 port and/or powered hub to connect. Maybe even use extension cable to avoid interference.

rancid willow
# novel garden can you check Settings > System > Hardware > All Hardware if the device is rec...

Thanks for your input. When I connect the USB cable to the USB 2.0 port dmesg gives: hub_port_connect: 42 callbacks suppressed, and usb usb1-port1: connect-debounce failed. When I check the RPi hardware map, there are no /dev/ttyUSB or /dev/ttyACM. Also, the device is a display controller on my heatpump, thus already externally powered. It works out of the box when connected to an older RPi3 running Raspberry Pi OS LITE (64-bit). Tried to install a supervised version of HA on the RPi5, yet same issue persist.