linux-kernel - Re: [PATCH] 2.6.24-rc1: ensure "present" sysfs attribute even if battery is absent

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Message-Id: <1193513524.2915.18.camel@shinybook.infradead.org>
Date:	Sat, 27 Oct 2007 15:32:04 -0400
From:	David Woodhouse <dwmw2@...radead.org>
To:	cbou@...l.ru
Cc:	Andrey Borzenkov <arvidjaar@...l.ru>, linux-acpi@...r.kernel.org,
	linux-kernel@...r.kernel.org, davidz@...hat.com, rhughes@...hat.com
Subject: Re: [PATCH] 2.6.24-rc1: ensure "present" sysfs attribute even if
	battery is absent

On Sat, 2007-10-27 at 22:42 +0400, Anton Vorontsov wrote:
> Well, PROP_PRESENT wasn't my idea, currently it's used by pmu and
> olpc drivers becuase it's not trivial to register/unregister their
> batteries on physical insertion/removal. I have some plans to teach
> at least pmu batteries to not use PROP_PRESENT. I don't have any
> OLPC, thus I can't convert it.

Actually it's not hard to do that. It was done this way in response to a
request from the userspace side. IIRC.

-- 
dwmw2

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