Hi @DGebu.1 ,
The official STM32CubeU5 library supports only the USBX library.
However, you find the classic MW library for STM32U5 on this Github link: https://github.com/STMicroelectronics/stm32u5-classic-coremw-apps.
The following wiki content would be helpful for you as well: https://wiki.st.com/stm32mcu/wiki/USBX_overview.
-Amel
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