I only see one USB device (a mouse that doesn't do anything) in the USBX example

[FHars]

All I get if I plug the USB in is:

[43551.770841] usb 1-3.1.4: new full-speed USB device number 42 using xhci_hcd
[43551.887707] usb 1-3.1.4: New USB device found, idVendor=0483, idProduct=5710, bcdDevice= 2.00
[43551.887710] usb 1-3.1.4: New USB device strings: Mfr=1, Product=2, SerialNumber=3
[43551.887711] usb 1-3.1.4: Product: STM32 USB Device
[43551.887712] usb 1-3.1.4: Manufacturer: STMicroelectronics
[43551.887713] usb 1-3.1.4: SerialNumber: 000000000001
[43551.960983] input: STMicroelectronics STM32 USB Device as /devices/pci0000:00/0000:00:01.2/0000:02:00.0/0000:03:08.0/0000:05:00.1/usb1/1-3/1-3.1/1-3.1.4/1-3.1.4:1.0/0003:0483:5710.001B/input/input40
[43551.961128] hid-generic 0003:0483:5710.001B: input,hidraw10: USB HID v1.11 Mouse [STMicroelectronics STM32 USB Device] on usb-0000:05:00.1-3.1.4/input0

I rechecked all the CubeMX settings. they look OK, any Ideas?

[FHars]

I see all the devices if I plug it into a Windows laptop, so does the example implement a compliant USB device, or just a bare minimum that triggers a happy path on a windows host?

[Anguel]

On Windows I see the CDC + HID devices as shown in the slides, however I don't see any HID data when I connect to the USB Serial Device via Putty.

[FHars]

The serial should just echo back what you type in there.

[Lubos KOUDELKA]

During testing with Linux host I observed issue just on CDC side, solution described here

https://community.st.com/s/question/0D53W00000wXLDWSA4/usb-composite-device-hid-cdc-acm-example-on-linux