linux-kernel - Re: A minimally power-aware driver treats all messages as SUSPEND?

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Message-ID: <alpine.LFD.1.10.0807010942330.20870@hp.linux-foundation.org>
Date:	Tue, 1 Jul 2008 09:43:10 -0700 (PDT)
From:	Linus Torvalds <torvalds@...ux-foundation.org>
To:	Uwe Kleine-König <Uwe.Kleine-Koenig@...i.com>
cc:	Andrew Morton <akpm@...uxfoundation.org>,
	David Brownell <dbrownell@...rs.sourceforge.net>,
	Pavel Machek <pavel@....cz>, "Rafael J. Wysocki" <rjw@...k.pl>,
	linux-kernel@...r.kernel.org
Subject: Re: A minimally power-aware driver treats all messages as SUSPEND?



On Tue, 1 Jul 2008, Uwe Kleine-König wrote:
> 
> This was introduced in commit 82bb67f2 by David Brownell.  At this time
> PM_EVENT_HIBERNATE didn't exist.  This was added in 3a2d5b70 by Rafael
> J. Wysocki without updating the above sentence.  I think a minimally
> power-aware driver should treat all messages as HIBERNATE, shouldn't it?

No.

A minimally power-aware driver should aim to work with STR.

HIBERNATE should be a secondary goal (if even that).

			Linus
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