Re: [lm-sensors] [PATCH] hwmon: Add driver for intel PCI thermal

From: Robert Hancock <hancockrwd@gmail.com>
To: Luca Tettamanti <kronos.it@gmail.com>
Cc: Matthew Garrett <mjg59@srcf.ucam.org>,
	lm-sensors@lm-sensors.org, linux-kernel@vger.kernel.org
Subject: Re: [lm-sensors] [PATCH] hwmon: Add driver for intel PCI thermal
Date: Fri, 11 Dec 2009 23:58:51 +0000	[thread overview]
Message-ID: <4B22DCBB.7040701@gmail.com> (raw)
In-Reply-To: <68676e00912110858i1cb8f7aclc8e7802840b6f84e@mail.gmail.com>

On 12/11/2009 10:58 AM, Luca Tettamanti wrote:
> On Fri, Dec 11, 2009 at 5:50 PM, Matthew Garrett<mjg59@srcf.ucam.org>  wrote:
>> On Fri, Dec 11, 2009 at 05:47:29PM +0100, Luca Tettamanti wrote:
>>> Sorry, I think we're not understanding each other :)
>>> Does the PCH samples the values directly from the probes? Or is it an
>>> interface for the real monitoring chip (most likely the superio chip)?
>>> In the latter case it might be possible to access directly the
>>> monitoring hardware using another driver (e.g. w83627ehf, lm80, etc.),
>>> thus racing against the PCI driver.
>>> Did I make myself clear?
>>
>> I don't think there's any other chip. On systems using external chips,
>> this PCI device will simply be disabled by the BIOS before the OS boots.
>
> Ok, good.
> The other potential issue is asus_atk0110 driver; ASUS boards have a
> ACPI interface to the hwmon stuff.
> Will check with my testers.

Well, on my P7P55D PRO board, this PCI device does not show up. I assume 
the BIOS disables it because the board uses its own monitoring hardware.

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