Am Samstag, 9. Dezember 2006 07:11 schrieb Ben Nizette: > >>> Also, you mentioned that the corruption occurs systematically on certain > >>> byte patterns. Therefore it's certainly not related to the cables. > >> It'd guess that too, but who can that say for sure. :-| > > > > You may have a bit pattern that stresses the controllers and suddenly > > a marginal cable may matter. > > The errors occur in strings of 0xFFs. From the USB standard: > > a “1” is represented by no change in level and a “0” is represented by a > change in level
Yes, plus added stuffing bits. > so this error-infested bytes are effectively long, quiet times on the > wire. I would have thought this would be the _least_ stressful time for > the controllers but maybe they are also more susceptible to noise during > this period. The longer you don't change the voltage the likelier are reciever and transmitter to get out of sync. Regards Oliver - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/