Hi Allan, On 14/11/16 09:45, ASIX_Allan [Office] wrote: > Hi Jon, > > Please help to double check if the USB host controller of your Terga > platform had been powered OFF while running the ax88772_suspend() routine or > not? Sorry for the delay. Today I set up a local board to reproduce this on and was able to recreate the same problem. The Tegra xhci driver does not power off during suspend and simply calls xhci_suspend(). I also checked vbus to see if it was turning off but it is not. Furthermore I don't see a new USB device detected after the error and so I don't see any evidence that it ever disconnects. Cheers Jon -- nvpublic -- 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