Re: About USBADRA bit at DEVICEADDR for chipidea driver

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On Mon, 11 Mar 2013, Alexander Shishkin wrote:

> > For USB 3.0 host CV test, the host sends GET_DESCRIPTOR very quick (<500us)
> > once it accept the status of SET_ADDRESS
> 
> The USB 2.0 spec says the recovery period after the status phase of
> SetAddress is 2ms. That should be enough to process the transfer
> completion interrupt, shouldn't it?
> Why is USB 3 CV violating this and why should we care? I guess, if we

Probably because the recovery period, being in the USB 2.0 spec,
applies to USB-2 devices -- whereas the USB-3 CV tries to test USB-3
devices.  Do they have the same recovery period?

Alan Stern

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