On Mon, 28 Jun 2004, Tommy Faasen wrote: > >Here's a possibility: Maybe the stick takes a long time to reply to the > >Setup packet -- just a little too long for the UHCI controller, which > >reports an error. > > > But I already changed those delay's without any result?
I'm talking about a different delay. The ones you changed were the delays before the Set-Address message was sent to the device. What I'm referring to here is the time from when the Setup packet (the first packet in the Set-Address message) is sent to the device until the device sends back a reply packet. The maximum allowable length of that delay is given in the USB specification; it's a few microseconds. > > Maybe the OHCI controller is a little more lenient and > >accepts the late reply. > > > > I get an immediate reponse from the ohci one. Again, I'm talking about the difference between the UHCI controller thinking a 5-microsecond pause (or something on that order) is too long and the OHCI controller thinking it is short enough. Alan Stern ------------------------------------------------------- This SF.Net email sponsored by Black Hat Briefings & Training. Attend Black Hat Briefings & Training, Las Vegas July 24-29 - digital self defense, top technical experts, no vendor pitches, unmatched networking opportunities. Visit www.blackhat.com _______________________________________________ [EMAIL PROTECTED] To unsubscribe, use the last form field at: https://lists.sourceforge.net/lists/listinfo/linux-usb-devel
