Am Donnerstag, 31. Mai 2012, 06:00:42 schrieb Ashok Rao: > I also changed ehci.h to set the XacErr retry limit to 1 and rebuilt > the kernel - but that did not fix the hung problem and lack of > response. > > Previous emails from Alan Stern on the XactErrs have indicated the > possibility of a hardware/software error in the usb device > controller. All I can say is that the same behaviour has been seen in > 2 phones - of course it is possible that the mfgr's implementation is > faulty and just happens to work against Windows hosts. This needs to be ruled out. Are you on a system that has a physical OHCI or UHCI controller? If so, please unload ehci_hcd so that the bus falls back to the old controller. Regards Oliver -- 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