I have read that USB chains are able to support 120+ devices. But my understanding of IRQs is that they are limited to 20 or so.
There appears to some disparity. :) Then it occurred to me that the USB interrupt is but one IRQ. It's then up to USB to sort out the device on the chain.
Would anyone mind elaborating just a little on this subject? Oh, is this also the general principle found on Micros~1 Windoze?
Many thanks in advance, Tim
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