RE: Does a USB mouse wake a system up from S3?

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> 
> 
> > I have some customers asking why a usb mouse doesn't wake a system up
> > from
> > S3 on RHEL-6.  I have poked at a 3.3 kernel and noticed the same
> > behaviour.  Is this true or do I have something misconfigured?
> >
> > I talked with Matthew Garret about this, he mentioned something like
> > /sys/bus/usb/devices/usb1/power/wakeup would need to enabled for the
> > mouse
> > to work.  I tried this with no success.
> >
> > So before I started to investigated, I was wondering what the
> > expectations
> > were for something like this.
> >
> 1. Make sure the VBUS is on at your S3 status, the mouse's LED is should
> be on.
> 2. make sure your mouse is remote wakeup featured.
> 3. Make sure the wakeup is enabled from the roothub to mouse.
> For example, if your mouse is at bus 5(using lsusb to get), and there is
> a hub at this
> bus, the mouse is connected one of the ports.
> 
> echo enabled > /sys/bus/usb/devices/usb5/power/wakeup (roothub)
> echo enabled > /sys/bus/usb/devices/5-2/power/wakeup (hub)
> echo enabled > /sys/bus/usb/devices/5-2.1/power/wakeup (mouse)
> 
Besides, you need to make sure the USB interrupt can be system wakeup source.
For pc, it may be set at BIOS.

> > Thanks,
> > Don
> >
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> 
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