No FTDI devices

[ImplicateX]

With the command

sudo dmesg | grep FTDI

I do not get a list of connected FTDI interfaces.
However, I can find them with the native lsusb.

lsusb | grep Texas
Bus 001 Device 005: ID 0451:c31a Texas Instruments, Inc. I2C.B+SPI.B
Bus 001 Device 004: ID 0451:c31b Texas Instruments, Inc. SPI.C

The driver ftdi_sio should be available in the kernel and is no longer offered by FTDI.
VCP Drivers

And any examples from FTDI also show that no device was found.

Under Windows 10 and 11 it works very well and it's very easy to use...

[applecheeks37]

Welcome to the forum!

So before anything else, what are you attempting to accomplish? I assume something to do with a calculator of some description, or perhaps a tuba manufacturer in Texas? Saying it works very well under Windows, I have to assume the prior, but at that, what works very well and is easy to use on windows? Sorry, unless I'm very confused, I feel like there's not enough information here to gather what is going on.

[Aravisian]

Also, are you using Braille?
If not, you might try

sudo apt remove brltty

Reboot and test...

*Note that is BRLTTY for Braille TTY. You can also copy the above command and paste ctl+shift+v in terminal.

[ImplicateX]

The task is very simple.
It is reported everywhere that since Ubuntu 11.x the VCP drivers have been implemented in the kernel and can therefore no longer be installed from the manufacturer's source.
So why are they missing in Zorin OS?
It is not a calculator, but an old emulation board with FTDI chips that I use further for other tasks.
If you are interested, you can find out more at Redirecting...
The Zorin OS system, a Windows 11 system, a Raspberry PI 4 system and an Endpoint Domino board from GHI-Electronics all run .NET 8 IoT identically.
With a code in C# it runs everywhere.
The FTDI chips FT4232, FT2232 and FT4222 that I use are the bridges via USB to the I2C and SPI device buses.
The FTDI chips run everywhere.
Just not under Zorin OS.
What is going on and is there a solution?