Been reading through the USB document and going through the codes
but still having a bit of trouble grasping the concept of an
interface.
What would constitute an "interface"? Does it encapsulate a class
with the associated class methods?
Where in the code does it bind the "interface" to the class?
When the host request for an "interface", what would it get in return
or what would be the purpose of asking for an interface?
For
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