azure RTOS - enable on host USB CDC-ECM support for a 4G module

Question

We have Nucleo-H732ZG and NUCLEO-H563ZI boards from ST and a 4G module (EG915U from Quectel). We're trying to get a cdc_ecm USB host up and running on the mcu side, using azure rtos usbx.

We tried to follow this example: https://learn.microsoft.com/en-us/answers/questions/1101457/azure-rtos-cdc-ecm-example.

This doesn't work, because the "ux_host_stack_configuration_interface_get" function doesn't allow us to access the USB interface parameters correctly.

do you have a solution?

Do you have another working example?

Do you think USBx can support ECM activation for a 4g module?

thanks,

Best regards,

Julien Schlaepfer