Stuck with cp210x problems on WiFi LoRa 32 (V2), Linux

Hello all,

since two days I am desperatly trying to connect to my WiFi LoRa 32 (V2) board.

When I plug in the device, I get this “dmesg” messages:


[ 87.222785] usb 1-1.2.3.2: new full-speed USB device number 10 using ehci-pci
[ 87.302783] usb 1-1.2.3.2: device descriptor read/64, error -32
[ 87.490782] usb 1-1.2.3.2: device descriptor read/64, error -32
[ 87.678776] usb 1-1.2.3.2: new full-speed USB device number 11 using ehci-pci
[ 87.762767] usb 1-1.2.3.2: device descriptor read/64, error -32
[ 87.950762] usb 1-1.2.3.2: device descriptor read/64, error -32
[ 88.059061] usb 1-1.2.3-port2: attempt power cycle
[ 88.662752] usb 1-1.2.3.2: new full-speed USB device number 12 using ehci-pci
[ 89.078729] usb 1-1.2.3.2: device not accepting address 12, error -32
[ 89.162730] usb 1-1.2.3.2: new full-speed USB device number 13 using ehci-pci
[ 89.578714] usb 1-1.2.3.2: device not accepting address 13, error -32
[ 89.579011] usb 1-1.2.3-port2: unable to enumerate USB device

  • I have searched the web at silabs, at heltec and many other sources.
  • My drivers and system is up to date.
  • I can load the “usbserial” and “cp210c” with modprobe.
  • Both are listed in “lsmod” as well.
  • I have tried with half a dozen different cables.
  • I tried with and without a USB-hub.

But no success.

My system is:

$ uname -a
Linux summini 5.4.0-58-generic #64-Ubuntu SMP Wed Dec 9 08:16:25 UTC 2020 x86_64 x86_64 x86_64 GNU/Linux
$ cat /etc/issue
Ubuntu 20.04.1 LTS

My hardware is an ordinary Thinkpad which is known to be a very robust linux platform and anything but exotic. And all the other drivers like CH340, FTDI, pl2303 and so on work like a charm.

Any ideas?
Is it possible, that the WiFi LoRa 32 (V2) has a customized VID:PID in the cp2102?

(Sorry for the crazy formatting, no clue why this is so.)