Hi Johan, Thanks for your answer. That seems a lot like what I am seeing because I had a USB tracer and it showed many NAKed transactions. Regards, Billy. On Wed, Nov 15, 2017 at 2:45 PM, Johan Hovold <johan@xxxxxxxxxx> wrote: > On Wed, Nov 15, 2017 at 12:12:16PM +0000, Billy Araujo wrote: >> Hi all, >> >> I built a kernel/rootfs for altera SoCkit amd uses the default SoCkit >> device tree and I plug when in plug in a USB stick it uses the dwc2 >> driver. >> When doing cat /proc/interrupts I get normal amount of interrupts - >> everything seems ok. >> >> However, when I connect the USB stick to a USB hub and then to the >> same USB port I get a great amount of interrupts approx. 8000 per >> second. Anyone know why this different behaviour? > >> I have seen several threads with stating this issue but haven't found >> a clear answer. > > This sounds familiar, take a look at: > > https://lkml.kernel.org/r/20171030170802.14489-1-dianders@xxxxxxxxxxxx > > Johan -- 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