Re: /dev/ttyUSB0 file disappears on Ubuntu 22.04

Yuri
2022-06-04T05:32:10Z

>>
>> ls: cannot access '/dev/ttyUSB*': No such file or directory
>
> Is the device node actually there?
>
> What does /dev/serial/ contain?
>

After I have a ftdi device attached I have

cd /dev/serial ; ls -LR

.:
by-id
by-path

./by-id:
ls: cannot access './by-id/usb-FTDI_USB_Serial_FT0KKBIF-if00-port0': No
such file or directory
usb-FTDI_USB_Serial_FT0KKBIF-if00-port0

./by-path:
ls: cannot access './by-path/pci-0000:00:1d.0-usb-0:1.5:1.0-port0': No
such file or directory
pci-0000:00:1d.0-usb-0:1.5:1.0-port0

So the folders and links are there but there's no /dev/ttyUSB0 file

>> No problems on the same PC working under Ubuntu 18.04 and 16.04
>> whatsoever:
>>
>> ls -l /dev/ttyUSB*
>> crw-rw---- 1 root dialout 188, 0 Jun 2 10:36 /dev/ttyUSB0
>
> I think you are going to have to contact ubuntu for this issue and get
> support from them as it's their kernel and overall system configuration
> here, the kernel looks like it is working just fine.

Thanks for advice. Already opened a bug report on launchpad.