On Mon, 10 Feb 2014, Stefani Seibold wrote: > > > One interesting thing was that the bus in 3.12.7 was sometimes 6 and > > > sometimes 2. > > > > The bus number doesn't matter; it's allowed to change every time you > > reboot. > > The bus change without a reboot! What? I don't understand. Can you post some files to demonstrate what you mean? > I have more information about the bug. I tested with a USB 3.0 > Expresscard and this works with 3.13. > > I also found an old USB 1.1 HUB in my USB gadget box. When i attach the > USB flash storage to the USB 1.1 hub there is also no problem. > > Since the USB 1.1 Hub is attached to the EHCI we can assume that the bug > is not in the phy support nor in the USB storage driver. > > So i thing the bug must be located in the EHCI HC driver. Yes, it probably is. Can you build 3.13 with CONFIG_USB_DEBUG enabled? Maybe some debugging information will show up in the dmesg log and provide a clue. 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
