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>USB bus receiving the packet

its not really receiving packets, its receiving data _you specifically requested in YOUR packet_. in USB only host is capable of generating traffic on the bus, your device cant generate any packets, only answer to them.



And this is exactly the sort of thing that I wish it included, so I could learn about it.

It's complex, I know it's complex, and I want to know what actually happens at that awkward fuzzy boundary between hardware and software.




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