On Thu, Jan 24, 2013 at 12:02 AM, Alan Stern <st...@rowland.harvard.edu> wrote:
>
> Other strange things seem to be happening.  Take a look at the log just
> posted by Norbert Preining:
>
>         http://www.preining.info/usb-syslog-prob.txt
>
> Starting at timestamp 400.570029, the external hub and root hub go into
> a strange remote wakeup loop.  I don't know why; maybe some external
> program is trying to access the external hub over and over again. This

>From timestamp 400.570029 to 410.920195, root hub is always auto-resumed,
so it might be triggered by some crazy external applications, lsusb or others?

> continues for more than 10 seconds!  If the delay were set to 30 ms,
> the amount of activity would be greatly reduced.

IMO, if it is a normal use case on USB bus or device, we need to consider
adjusting the default delay for hub, but it is still not sure, :-)

Thanks,
--
Ming Lei
--
To unsubscribe from this list: send the line "unsubscribe linux-usb" in
the body of a message to majord...@vger.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html

Reply via email to