Of Pipes and Endpoints

posted by  kevyn (54)  12 months ago (blogs.msdn.com)

If you look at the KMDF headers, you will see two names, pipes and endpoints, that refer to the same concept.  They can be confusing, I had to spend a few minutes explaining them to one our technical writers awhile back explaining why we had two names in the first place (and, yes, there is a method to the madness).  

If you have read the USB specification or looked at descriptors before, the term endpoint should not be anything new to you.  An endpoint is an address on the device.  The endpoint is unidirectional (unless it is a control endpoint), has a