Tom Schouten wrote:
Yes I understand USB is polled.
Good, except..
Though there's a difference between polling by the
usb controller
and polling at the software level
..no, not really.
meaning having to send multiple control requests until
there is
data ready vs just waiting until there is data on an IN endpoint.
The difference is actually very small, but of course it is more
convenient to have a dedicated endpoint. I guess the point is that
there isn't one.
//Peter