On Fri, 7 Sep 2012, Ruslan Bilovol wrote:

> Hi Florian,
> 
> This is just a suggestion, but.. maybe you have a hub between a host
> and a device?
> In such case you need to enable remote wakeups for it. For example,
> using your little script:
> 
> for i in `find /sys/bus/usb/devices/*/power/wakeup`; do echo enabled > $i; 
> done;

No, that's not necessary.  The power/wakeup attribute affects only
system suspend (standby, suspend to RAM, and hibernation).  Remote
wakeup is always activated for hubs during runtime suspend.

Alan Stern

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