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RNDIS configured in USB CDC1 is not working

Punith_P

Hi ,

I am working on a project where both VCOM port and RNDIS needs to be configured on the same USB device.

Method1: I have configured CDC0 as a VCOM port and CDC1 as a RNDIS. In this configuration VCOM port works perfectly fine. But the RNDIS is not working. When I check the device status in the device manager it like below: 

This device cannot start. (Code 10)

{Operation Failed}
The requested operation was unsuccessful.

Method2: I have configured CDC0 as a RNDIS and CDC1 as a VCOM port. In this configuration RNDIS works perfectly fine. But the VCOM port doesn't receives the frame which is grater than 64bytes.

Controller: LPC43S57

Environment: Keil

RTOS: CMSIS RTOS2