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USB Protocol Hub Class
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USB Protocol Hub Class is a part of the USB Device Stack library. It provides
basic macro definitions, data structures and API functions which are compliant
with Hub part of USB specification version 2.0.0/2.0.1 for user.

In addition, it provides interfaces of USB requests filling and input data
analyzing for the upper layer to use.

Features
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* Hub requests filling
* Hub change bitmap analyzing

Applications
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N/A

Dependencies
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N/A


Limitations
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N/A