On Mon, Aug 18, 2003 at 06:43:39PM -0700, David Brownell wrote: > >The user-space driver is attempting to read from the device, and > >apparently failing on its first attempt with an -EPIPE. The previous run > >of "modem_run" seems to succeed though. > > Nothing you sent suggests EPIPE ...
I accidentally left out that bit from the log, sorry. I added a little debug to the pppoa3 USB code, giving : Aug 19 02:05:04 lambent pppoa3[570]: Modem found! Aug 19 02:05:04 lambent kernel: Aug 19 02:05:04 lambent pppoa3[572]: host --> pppoa3 --> modem stream ready Aug 19 02:05:04 lambent pppoa3[573]: modem --> pppoa3 --> host stream ready Aug 19 02:05:04 lambent pppoa3[573]: ret -1 32 Aug 19 02:05:04 lambent pppoa3[573]: Error reading usb urb Aug 19 02:05:04 lambent pppoa3[570]: Woken by a sem_post event -> Exiting Aug 19 02:05:04 lambent pppoa3[573]: Cleaning Write to usb data Aug 19 02:05:04 lambent pppoa3[570]: Read from usb Canceled Aug 19 02:05:04 lambent pppoa3[572]: Cleaning Read from usb data Aug 19 02:05:04 lambent pppoa3[570]: Exiting Aug 19 02:05:04 lambent pppd[553]: Modem hangup Note the errno of 32 above. This appears to happen on an ioctl(USBDEVFS_SUBMITURB) of the device with a USBDEVFS_URB_TYPE_BULK type. BTW, here is the only other report I found describing what seems to be the same problem : http://marc.theaimsgroup.com/?l=linux-kernel&m=106055127722819&w=2 > That would previously have been "control/bulk timeout", giving no > very helpful for anyone with multiple devices...) Did you get that > older message before? Only when running "modem_run" which uploads the firmware, not when actually bringing up pppd. > was pretty bizarre, and maybe it was covering up some bugs. Can > you try this with an OHCI controller? Or EHCI, through a high > speed hub (and transaction translator)? This change was just I only have the hardware given available to me. If nobody has any ideas, I suppose it is binary patch search time back to test2... > There are also three or four UHCI patches fixing bugs folk have > run into. You might want to get those and see if they help; I'm > not sure about their status, other than "not yet merged". I couldn't find these referenced from the websites; I need to look through the mailing list archives ? thanks john -- Khendon's Law: If the same point is made twice by the same person, the thread is over. ------------------------------------------------------- This SF.Net email sponsored by: Free pre-built ASP.NET sites including Data Reports, E-commerce, Portals, and Forums are available now. Download today and enter to win an XBOX or Visual Studio .NET. http://aspnet.click-url.com/go/psa00100003ave/direct;at.aspnet_072303_01/01 _______________________________________________ [EMAIL PROTECTED] To unsubscribe, use the last form field at: https://lists.sourceforge.net/lists/listinfo/linux-usb-devel
