linux-kernel - Re: error to be returned while suspended

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Message-ID: <20061004111933.GA8297@elf.ucw.cz>
Date:	Wed, 4 Oct 2006 13:19:33 +0200
From:	Pavel Machek <pavel@....cz>
To:	Oliver Neukum <oliver@...kum.org>
Cc:	linux-kernel@...r.kernel.org
Subject: Re: error to be returned while suspended

On Tue 2006-10-03 13:23:00, Oliver Neukum wrote:
> Hi,
> 
> which error should a character device return if a read/write cannot be
> serviced because the device is suspended? Shouldn't there be an error
> code specific to that?

If you are talking system suspend, then userspace should not run while
devices are suspended.

If you are talking runtime suspend, you should probably just wake the
device up on first access.
								Pavel
-- 
(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html
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