On Fri, 16 Sep 2011, Takasugi, Hirokazu wrote: > Hello linux usb community member, > > I have some questions about DM3725 EHCI HOST controller descriptor update timing. Can you please answer me? What descriptors are you referring to? EHCI host controllers use lots of different descriptors. > 1. The timing of update a Descriptor is after transfer Completion interrupt. Is my understanding correct? > 2. Is there the status to confirm in descriptor before updating a Descriptor elsewhere? Alan Stern -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html