On Tue, Dec 1, 2015 at 2:35 PM, Alan Stern <stern@xxxxxxxxxxxxxxxxxxx> wrote: >> I'm now sure the host in "non-compliant". > > It is non-compliant if it turns off Vbus power during suspend. But > that may be caused by the platform more than by the controller itself. > I wasn't able to find any document that states that VBUS must be on in S3 mode. In our SoC, the USB controller is not in the AON block so it looses power in S3 and that disables the USB VBUS supply. If I can prove our SoC is out of spec, I can probably get it fixed in future chips. Thanks Al Cooper -- 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