I am trying to implement the usb on imxrt1050 to connect to the vendor server. My usb descriptor is set up as vendor specific class 0xFF, subclass 0x00, protocol 0x00. There is only 1 endpoint1 as Bulk out transfer 0x02 receiver. Currently, I tried to use usb msc example from sdk, I could get the usb connect to the server by correct device descriptor. However, I can not get the data that is sent from the server. Please guide me any example or what do I need to do to get it work. Thank you.