Hello,
I have some problems about the way Gadget API handle the endpoints. I'm not sure how endpoints are described. Are they described as in the USB specs (one endpoint can do both IN and OUT requests)?
They are as how the USB 2.0 spec defines them, but that's not how I read the description ... :)
There are two endpoints #3: one IN, and one OUT.
As a rule there's only one control endpoint; that's the only one (ep0) that works in both directions. And its direction depends on the request that was just received: GET_DESCRIPTOR will always be an IN transaction, and so on.
- Dave
Or are they described as most chip producers specs to "boost" the number of endpoints available on their products (one endpoint represent either an IN or an OUT party of the "real USB" endpoint?
I suppose it's described like the USB specs... but I'm not really sure so I'd like to have a confirmation.
Thanks Miro
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