No new device appears for UNO R4 on Linux

Official Hardware Classic UNO R4 WiFi
1

Hello,

I bought a Uno R4 WiFi and when I connect it on my laptop no new devices appears in /dev folder.
dmesg shows me a new device detected.

I checked of "60-arduino-renesas.rules" in "/dev/udev/rules.d" and it is present.
However, when I connect the Uno R4 WiFi no new device appears.

Has anyone already face to this problem ?

Many thanks in advance

Thoma

2

Sounds like you are not a member of dialout. Try this:
Type 'groups', is 'dialout' there ?
sudo usermod -a -G tty yourUserName - sudo usermod -a -G tty gil
(gil is my user name)
sudo usermod -a -G dialout yourUserName
Log off and log on again for the changes to take effect.
The last step is most important!

3

I use an Arch Linux and the user is member of uucp.
As mentioned previously, neither /dev/ttyUSB0 nor /dev/ttyACM0 are created when I plug in the Uno R4 WiFI.
Still, I update the udev rules.
So, I suppose something is wrong on udev side in my opinion.

4

Run sudo dmesg -Hw and then plug in the Arduino. Report back with the output that is printed after plugging it in (if any).

5

Hello Pieter,

Here the lines that appears when connecting the Uno R4 WiFi:

[25juil. 21:30] usb 3-1.1: new full-speed USB device number 17 using xhci_hcd
[ +0,133878] usb 3-1.1: New USB device found, idVendor=2341, idProduct=1002, bcdDevice= 1.00
[ +0,000019] usb 3-1.1: New USB device strings: Mfr=1, Product=2, SerialNumber=3
[ +0,000004] usb 3-1.1: Product: UNO WiFi R4 CMSIS-DAP
[ +0,000003] usb 3-1.1: Manufacturer: Arduino
[ +0,000003] usb 3-1.1: SerialNumber: 64E8335DF614
[ +0,131447] hid-generic 0003:2341:1002.001B: hiddev96,hidraw0: USB HID v1.11 Device [Arduino UNO WiFi R4 CMSIS-DAP] on usb-0000:73:00.4-1.1/input0

6

I think you should be able to flash the R4. Serial might show up with a sketch including Serial.begin(...).

Did you reload the udev rules or rebooted you PC?

7

Hello Rintin,

I found the origin of my problem: kernel version and driver version was not the same.
This was due to a recent system update including a kernel update.
I forgot to reboot the machine.

Thanks for your help

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