I upgraded two devices from balenaOS 2.29.0+rev1 to balenaOS 2.38.3+rev4 and now my USB serial adapter is no longer detected.
A USB device is detected but the USB tree does no longer show the ttyUSB endpoint.
Did you remove any drivers? Changes to the udev system?
When I plugin the USB device on a device with the old BalenaOS, dmesg says:
[22067.664660] usb 1-7: new full-speed USB device number 7 using xhci_hcd
[22067.791853] ch341 1-7:1.0: ch341-uart converter detected
[22067.792125] usb 1-7: ch341-uart converter now attached to ttyUSB1
But when I plugin the USB device on a device with the new BalenaOS, dmesg says:
[ 966.292273] usb 1-7: new full-speed USB device number 5 using xhci_hcd
And I can’t downgrade the BalenaOS! Ouchh!
So do I have to backup the persistent data, reinstall, and restore persistent data, transfer all Balena settings from the old to the new device and delete the old device and … ???