Polling 1 times for unidentified transfer on endpoint 7.1 IN
 IN transaction on 7.1, NAK
  IN packet on 7.1, CRC 1B
  NAK packet
1 invalid groups
 1 malformed packet
  Malformed packet (possibly IN, but bad CRC) of 3 bytes: [69, B7, DB]
1 invalid groups
 1 malformed packet
  Malformed packet (possibly IN, but bad CRC) of 3 bytes: [69, B7, DB]
1 invalid groups
 1 malformed packet
  Malformed packet (possibly SOF, but bad CRC) of 3 bytes: [A5, BB, CE]
