Hi! I found strange USB desc in SDK.

[EMaxi.1]

After start device, windows report about error in desc:

========================== Summary =========================

Vendor ID : 0x0483 (STMicroelectronics)

Product ID : 0xA210

USB Version : 2.00 -> wrong, Device is Full-Speed only

Port maximum Speed : High-Speed (Companion Port 2-5 supports SuperSpeed)

Device maximum Speed : Full-Speed

Device Connection Speed : Full-Speed

Self powered : no

Demanded Current : 200 mA

Used Endpoints : 3

and not found section in desc

----------------- Device Qualifier Descriptor -----------------

Error : ERROR_GEN_FAILURE (*!*ERROR USB 2.0 devices must provide a Device Qualifier Descriptor)

In attached pict i rewrite 1 byte from 0x02 to 0x01 and solve all problems. This is bug or feauture?

[Walid ZRELLI]

Hello @EMaxi.1​ ,

Can you provide more details on the CubeFW used, the version and how to reproduce the issue?

Thanks in advance.

BeST Regards,

Walid

[Georgy Moshkin]

Can be reproduced

1) View device using USB Device Tree Viewer V3.7.8:

2) bcdUSB field can be found in USBD_FS_DeviceDesc (usbd_desc.c):

- When bcdUSB field is set to USB2.0 "0x00, 0x02" , there are two errors

- When bdcUSB field is set to USB1.0 "0x00, 0x01", there are less  errors:

 ----------------- Device Qualifier Descriptor -----------------
Error : ERROR_GEN_FAILURE