linux-kernel - Re: [PATCH v2] [RFC] ehci: Disable wake on overcurrent (WKOC_E) and disconnect (WKDISC

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Date:	Tue, 27 Apr 2010 14:33:59 -0700
From:	Greg KH <greg@...ah.com>
To:	Ondrej Zary <linux@...nbow-software.org>
Cc:	Alan Stern <stern@...land.harvard.edu>,
	linux-pm@...ts.linux-foundation.org, linux-usb@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2] [RFC] ehci: Disable wake on overcurrent (WKOC_E)
 and disconnect (WKDISC_E)

On Tue, Apr 27, 2010 at 10:46:48PM +0200, Ondrej Zary wrote:
> > Why would you want to change the jumper settings?  Host controllers are
> > _supposed_ to supply 5V power during system suspend.
> 
> Maybe because I don't want all my USB devices to be powered when the system is 
> turned off. I doubt that laptop in suspend-to-RAM (on battery) provides power 
> to USB ports.

On the contrary, it does.  Some of us use this mode to charge devices :)

thanks,

greg k-h
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