Hello Mathias (sorry you're getting this twice). Re-send after linux-usb list rejection (too big). Hans de Goede replied to my Fedora kernel bug here: https://bugzilla.redhat.com/show_bug.cgi?id=2175534 suggesting that I contact you about it and Cc: the linux-usb list. Starting with kernel-6.2.2-300 on Fedora x86_64 (the first 6.2 kernel on Fedora 37) I am seeing problems with USB devices on a Renesas ROM-based USB PCI card which works normally with kernel-6.1.15-200 and earlier 6.x kernels, essentially the USB 2.0 device tree on this card's bus is not being enumerated with the result that my /dev/ttyUSB* devices are no longer present (these are Silicon Labs CP210x UARTS with TI PCM290x devices behind them). I have attached the lsusb -t output for the working and broken cases, I don't know where the problem lies but I suspect it's not udev because the configuration is unchanged, it seems to be in the kernel usb code. There are further attachments in the bug referred to above, I don't know if they help but you can look there if the lsusb output is insufficient, I can point out that lsmod does show the cp210x module is loaded which may provide a clue about where things are failing. Thanks for reading this, I look forward to hearing your suggestions. -- Brian Morrison
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