I am trying to implement USB mass storage device class on the Sensortile which uses STM32L476. I used the sample audio loop app to verify that USB works fine. However, when I ported the MSC device functions from L476G-Eval directory, I am not able to get the interrupt coming for me. What is the right source code for porting msc device fns into sensortile? Anybody has done it and it worked fine?