linux-kernel - Re: [PATCH 3/7] [RFC] Battery monitoring class

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Date:	Thu, 12 Apr 2007 15:24:30 +0100
From:	Matthew Garrett <mjg59@...f.ucam.org>
To:	Anton Vorontsov <cbou@...l.ru>
Cc:	linux-kernel@...r.kernel.org, kernel-discuss@...dhelds.org,
	dwmw2@...radead.org
Subject: Re: [PATCH 3/7] [RFC] Battery monitoring class

On Thu, Apr 12, 2007 at 06:15:05PM +0400, Anton Vorontsov wrote:
> On Thu, Apr 12, 2007 at 02:08:18PM +0100, Matthew Garrett wrote:
> > ACPI batteries can report capacity and rate in either mA or mW. Given
> 
> You sure, capacity in mA? Then I don't know. But you can safely
> fallback and create your own attribute (just as in David's battery class,
> where every battery required to create its own attributes), plus create
> capacity_units attribute. So, user space will know your driver's specific
> units.

Well, mAh, but yes. Clearly it's possible to add extra attributes, but 
speccing standard attributes that don't entirely cover the most common 
non-embedded battery class seems less than ideal. Why not just require
capacity_units and rate_units attributes?

-- 
Matthew Garrett | mjg59@...f.ucam.org
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