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

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Message-ID: <20070412130817.GA29900@srcf.ucam.org>
Date:	Thu, 12 Apr 2007 14:08:18 +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 03:25:03AM +0400, Anton Vorontsov wrote:
> + * All voltages, currents, capacities and temperatures in mV, mA, mAh and
> + * tenths of a degree unless otherwise stated. It's driver's job to convert
> + * its raw values to which this class operates. If for some reason driver
> + * can't afford this requirement, then it have to create its own attributes,
> + * plus additional "XYZ_units" for each of them.

ACPI batteries can report capacity and rate in either mA or mW. Given 
the lack of a constant voltage, how do you accurately convert between 
the two? Right now, I think this is a loss of functionality over the 
current situation.

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