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MQX 4.1 Host CDC class driver on K70

Question asked by Aruna das on May 23, 2014
Latest reply on May 29, 2014 by Kan_Li

I need technical inputs w.r.t. MQX CDC class host driver on K70 board.


  1. We are using a USB-cdc Device with K70 board.
  2. On K70, the device is enumerated but the CDC demo always returns failure at the point indicated in the below snapshot.
  3. The implementation in the attached snapshot is from “cdc_serial.c” demo made available by Freescale
  4. Specificaly the attached snapshot is from "data-event" callback registered by the application.
  5. Since the BOUND_CONTROL_INTERFACE is always NULL, “_lwevent_set” never occurs.

Please provide me pointers to debug and fix this issue.