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Which one is better for general purpose USB host application? CDC or PHDC?

Question asked by Kai Liu on Jun 3, 2013
Latest reply on Jun 20, 2013 by Kai Liu

The USB host application I am working on is Android ADB, which has dedicated interface with BulkIN/BulkOUT EPs.


Following instructions from FSL user manual for USB stack, the enumeration process works well. However, the class APIs are quite different. I want to refers some other class implementation as my code base.


Either CDC/PHDC use BulkIN/BulkOUT as main communication EPs, but their implemenations and structures definitions are quite complex.


Since ADB only requires a pair of Bulk EPs to send/receive messages, which one is more closer to my application? CDC or PHDC?