Hi,
I'm trying to write a host controller driver for a Arc hardware. I
need to know how nak pid should be handled ? Hardware can
automatically manage them, that means it automatically retry the
naked transaction. But since setup packet must not be "NAKed" or hub
endpoint #1 returns nak pid when no events happen on its port, I don't
think I can use this feature. But if I do it manually, what should I
do when receiving a NAK ? Should I retry the transaction forever ?
What status should I return to usb core (through urb->status) when hub
endpoint #1 returns nak ?
Thanks.
--
Franck
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