linux-kernel - Re: [PATCH] i8k: Add support for temperature sensor labels

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Message-ID: <547A71F5.4030306@roeck-us.net>
Date:	Sat, 29 Nov 2014 17:25:09 -0800
From:	Guenter Roeck <linux@...ck-us.net>
To:	Pali Rohár <pali.rohar@...il.com>
CC:	Gabriele Mazzotta <gabriele.mzt@...il.com>,
	Arnd Bergmann <arnd@...db.de>,
	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	Steven Honeyman <stevenhoneyman@...il.com>,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH] i8k: Add support for temperature sensor labels

On 11/29/2014 11:07 AM, Pali Rohár wrote:
[ ... ]
>
> Original Dell DOS executable ignores all temperature sensors if
> type SMM function fails (if I decoded and understand that DOS
> assembler code correctly). So maybe we should do same...
>
Pali,

Makes me wonder - does the assembler code tell you what to do
if the reported temperature is invalid, and does it distinguish
between error codes ? So far we have
	0x99 - presumably a spurious error
	0xc1 - GPU temperature sensor, GPU turned off

It would be nice if we could find a better solution for error handling.

Thanks,
Guenter

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