Hi, On Mon, Feb 25, 2013 at 07:56:49PM +0800, Soar Hung wrote: > >> Then add_endpoint to enable these endpoints. > >> After all drop add flag are set, HCD sends a configure endpoint > >> command to complete the change. > > > > right. > > > >> Before the priodic bandiwdth is used up, the configure endpoint > >> command can success. However, after reset several times, the > >> configure endpoint command fail with command status "not enough > >> bandwidth". > >> And the HC can not correctly configure any more periodic device. > > > > this does sound like a known errata. Unfortunately there's no > > suggested for it. Just to make sure this is really the case, > > can you, somehow, make sure that no transfers are ever > > scheduled to any of the periodic endpoints and see if that "solves" > > the issue. > > > > We found this issue on our embedded system. > The driver is wrote with no periodic transfer. > So it might not solve the issue. fair enough, I'll continue to try out on my end too. cheers -- balbi
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