linux-kernel - Re: [lm-sensors] [PATCH] hwmon: Add power meters to Documentation/hwmon/sysfs-interface

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Message-ID: <20070906113429.1c88c844@hyperion.delvare>
Date:	Thu, 6 Sep 2007 11:34:29 +0200
From:	Jean Delvare <khali@...ux-fr.org>
To:	Henrique de Moraes Holschuh <hmh@....eng.br>
Cc:	"Mark M. Hoffman" <mhoffman@...htlink.com>,
	lm-sensors@...sensors.org, linux-kernel@...r.kernel.org,
	Pavel Machek <pavel@....cz>,
	"Darrick J. Wong" <djwong@...ibm.com>
Subject: Re: [lm-sensors] [PATCH] hwmon: Add power meters to
 Documentation/hwmon/sysfs-interface

On Mon, 3 Sep 2007 20:22:25 -0300, Henrique de Moraes Holschuh wrote:
> On Mon, 03 Sep 2007, Jean Delvare wrote:
> > I see that the power supply class units are 10^-6 A and 10^-6 W, so if
> > we are supposed to be compatible, I guess we'll have to use this too.
> 
> There was a good reason for that, and people who deal with small portables
> said that they needed 10^-4 A or somesuch, at which point it makes more
> sense to just go to 10^-6 already.  I don't recall why 10^-6 W, though.

Well, if we need 10^-4 A, and we use voltages in the 1-2 V range
(that's what CPU, AGP etc. use these days), then we obviously need
10^-4 W as well.

-- 
Jean Delvare
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