linux-kernel - Re: [PATCH v2 1/2] i8k: Autodetect maximal fan speed and fan RPM multiplier

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Date:	Sat, 20 Dec 2014 10:07:49 -0800
From:	Guenter Roeck <linux@...ck-us.net>
To:	Steven Honeyman <stevenhoneyman@...il.com>
CC:	Pali Rohár <pali.rohar@...il.com>,
	Arnd Bergmann <arnd@...db.de>,
	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	linux-kernel@...r.kernel.org, Valdis.Kletnieks@...edu,
	Jean Delvare <jdelvare@...e.de>,
	Gabriele Mazzotta <gabriele.mzt@...il.com>,
	Jochen Eisinger <jochen@...guin-breeder.org>
Subject: Re: [PATCH v2 1/2] i8k: Autodetect maximal fan speed and fan RPM
 multiplier

On 12/20/2014 09:27 AM, Steven Honeyman wrote:
> On 20 December 2014 at 17:20, Guenter Roeck <linux@...ck-us.net> wrote:
>> I would think that it should be relatively safe
>> to assume that the first fan always exists
>
> That would be a bad idea, as this is definitely not the case:
>
> i8k-virtual-0
> Adapter: Virtual device
> fan2:        3181 RPM
> CPU:          +43.0°C
> Ambient:      +42.0°C
> SODIMM:       +36.0°C
>

Well, then he'll have to loop through fans until finding one which exists.

Guenter

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