On Fri, Sep 21, 2012 at 11:53 PM, Alan Stern <st...@rowland.harvard.edu> wrote:

> The hub will also be resumed when a child is accessed via libusb, and
> suspended when the child is released.  As a result, the hub gets
> suspended and resumed multiple times: once for itself and once for each
> descendant.  If the autosuspend timeout is large enough then the hub
> will be suspended and resumed only once.

True.

Considered 'lsusb' is used with less frequency and for test/debug
purpose under most of situations, it shouldn't be a big deal.

A bit large timeout may introduce extra CPU wakeup, so it might be better
to set it as zero, IMO.

Thanks.
--
Ming Lei
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