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Message-Id: <1234821177.30178.399.camel@laptop>
Date: Mon, 16 Feb 2009 22:52:57 +0100
From: Peter Zijlstra <peterz@...radead.org>
To: "Rafael J. Wysocki" <rjw@...k.pl>
Cc: Arjan van de Ven <arjan@...radead.org>,
pm list <linux-pm@...ts.linux-foundation.org>,
LKML <linux-kernel@...r.kernel.org>,
Arve Hjønnevåg <arve@...roid.com>,
Alan Stern <stern@...land.harvard.edu>,
Benjamin Herrenschmidt <benh@...nel.crashing.org>,
Pavel Machek <pavel@....cz>,
Nigel Cunningham <nigel@...el.suspend2.net>,
Matthew Garrett <mjg59@...f.ucam.org>,
mark gross <mgross@...ux.intel.com>,
"Woodruff, Richard" <r-woodruff2@...com>,
Uli Luckas <u.luckas@...d.de>,
Igor Stoppa <igor.stoppa@...ia.com>,
Brian Swetland <swetland@...gle.com>,
Len Brown <lenb@...nel.org>
Subject: Re: [RFD] Automatic suspend
On Mon, 2009-02-16 at 22:48 +0100, Rafael J. Wysocki wrote:
> > Userland should never ever control the state of a device like this
> > directly. It should do so by a) closing the device and b) setting
> > latency / functional requirements.
>
> The user, however, may want to forcibly put a device into a low power state
> without stopping all of the applications that depend on it (eg. have it open).
> Do you think that we shouldn't allow users to do such things?
Sounds like a recipe for disaster.
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