linux-kernel - Re: [lm-sensors] [PATCH 1/2 V3] applesmc: Use PnP rather than hardcoding resources and devices

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Message-ID: <20101220145721.4c58ff3e@endymion.delvare>
Date:	Mon, 20 Dec 2010 14:57:21 +0100
From:	Jean Delvare <khali@...ux-fr.org>
To:	Mikael Ström <mikael@...amiq.com>
Cc:	Henrik Rydberg <rydberg@...omail.se>,
	Julien BLACHE <jb@...ache.org>,
	Guenter Roeck <guenter.roeck@...csson.com>,
	"lm-sensors@...sensors.org" <lm-sensors@...sensors.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	Matthew Garrett <mjg@...hat.com>
Subject: Re: [lm-sensors] [PATCH 1/2 V3] applesmc: Use PnP rather than 
 hardcoding resources and devices

On Mon, 20 Dec 2010 21:44:34 +0800, Mikael Ström wrote:
> Hi,
> 
> I know nothing about the background to the mail below, but if it's of
> any help, macfanctld uses the following hardwired paths,
> 
> reading:
> 
> /sys/devices/platform/applesmc.768/temp<n>_input
> 
> and writing:
> 
> /sys/devices/platform/applesmc.768/fan1_min
> /sys/devices/platform/applesmc.768/fan2_min
> /sys/devices/platform/applesmc.768/fan1_manual
> /sys/devices/platform/applesmc.768/fan2_manual
> 
> If any of those are to be broken, please advice in advance so i can
> update the source before you break it, avoiding that the users fry their
> MacBooks.

I would expect the kernel driver to behave sanely in the absence of a
user-space application. Isn't it the case? If not, I consider it a
serious bug in the driver, which should be addressed ASAP.

-- 
Jean Delvare
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