ok
I give up

using an "asus" motherboard I was convinced that I had identified the usbhid

going to see the individual components

with:
sudo lsusb -vvd 0b05: 1899

it actually corresponds to the keyboard
Bus 005 Device 003: ID 0b05: 1899 ASUSTek Computer, Inc. TUF GAMING K5
Device Descriptor:
bLength 18
bDescriptorType 1
bcdUSB 1.10
bDeviceClass 0
bDeviceSubClass 0
bDeviceProtocol 0
bMaxPacketSize0 64
idVendor 0x0b05 ASUSTek Computer, Inc.
idProduct 0x1899
bcdDevice 0.45
iManufacturer 1 ASUSTeK
iProduct 2 TUF GAMING K5

etc. etc.

therefore completely wrong road.

I remain of the idea that if the developer does not personally try a usb-audio stick to see how it works.

Of course I personally can't do anything about it.

I will dedicate myself to something else

it remains only that with qemu sam460ex the usb-audio stick is perfectly recognized in all its parts only problem is that you can't hear the sound.

I would work on this, but it's not up to me.

Well it was a nice pastime I learned other things.

[ Edited by white 06.02.2022 - 10:53 ]