umcs (4-Port-USB-serial) triggering way too much ehci IRQs

Hans Petter Selasky hans.petter.selasky at
Tue Sep 17 08:56:45 UTC 2013

On 09/17/13 10:47, Lev Serebryakov wrote:
> Hello, Harald.
> You wrote 17 сентября 2013 г., 12:46:25:
> HS> The Y is the device addr @ bus #X.
>    Oh :)
> HS> Same posted some seconds ago :-)
>    Yep, exactly the same pattern.


Could you show the configuration descriptor for your device?

usbconfig -d X.Y dump_curr_config_desc


The interrupt endpoint in question can be throttled by the USB stack, if 
the latency of these events are not important to your application.


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