On Mon, 14 Apr 2014, Stefani Seibold wrote: > > > An other PowerPC device which is nearly eactly the same HW but without > > > this USB HUB works perfectly. > > > > Maybe you should replace that hub with a different brand. > > > > Thats not possible, because the Hub is soldered on the board. And it is > also not a HW issue, since the Hub works perfectly which all previous > kernels including 3.4. One other thing you can try is to increase the reset timeout in drivers/usb/host/ehci-hub.c. This is under the USB_PORT_FEAT_RESET case in ehci_hub_control(), around line 1225: /* * caller must wait, then call GetPortStatus * usb 2.0 spec says 50 ms resets on root */ ehci->reset_done [wIndex] = jiffies + msecs_to_jiffies (50); Increasing the 50 to 100 or more might help. 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
