linux-kernel - Re: [lm-sensors] it87 sensors need an ACPI driver (2.6.31)

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Message-id: <200909202035.54220.gene.heskett@verizon.net>
Date:	Sun, 20 Sep 2009 20:35:54 -0400
From:	Gene Heskett <gene.heskett@...izon.net>
To:	Luca Tettamanti <kronos.it@...il.com>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: Re: [lm-sensors] it87 sensors need an ACPI driver (2.6.31)

On Sunday 20 September 2009, Luca Tettamanti wrote:
>On Sun, Sep 20, 2009 at 10:37 PM, Gene Heskett <gene.heskett@...izon.net> 
wrote:
>> On Sunday 20 September 2009, Luca Tettamanti wrote:
>>>On Sun, Sep 20, 2009 at 10:20 AM, wixor <wixorpeek@...il.com> wrote:
>>>> Hello,
>>>> with recent upgrade to 2.6.31 I get
>>>>
>>>> it87: Found IT8712F chip at 0x290, revision 7
>>>> it87: in3 is VCC (+5V)
>>>> it87: in7 is VCCH (+5V Stand-By)
>>>> ACPI: I/O resource it87 [0x295-0x296] conflicts with ACPI region IP__
>>>> [0x295-0x296]
>>>> ACPI: Device needs an ACPI driver
>>>> FATAL: Error inserting it87
>>>> (/lib/modules/2.6.31/kernel/drivers/hwmon/it87.ko): Device or resource
>>>> busy
>>>
>>>[...]
>>>
>>>> I have also discovered that dsdt contains description of what is
>>>> connected to each it87 input. Maybe it has also some code to access
>>>> the chip? In /proc/acpi I can read only one temperature, while the
>>>> chip measures three temperatures, fan speeds and voltages. This is
>>>> desktop pc with ASUS A8N1-E maniboard, athlon64 and nforce4 chipset.
>>>
>>>Try the asus_atk0110 driver, it handles the ACPI hwmon interface on
>>>Asus motherboards. If it does not work then please send a dump of your
>>>DSDT (/sys/firmware/acpi/tables/DSDT).
>>
>> Jumping in the middle of this, I am another that it87 doesn't work very
>> well for,  ASUS M2N SLI Deluxe board.
>
>Please define "doesn't work well". asus_atk0110 should handle that
>board. In case of troubles enable CONFIG_HWMON_DEBUG_CHIP, load
>asus_atk0110 and post the content of the kernel log.
>
With that CONFIG_HWMON_DEBUG_CHIP enabled, dmesg (attached) looks semi-
kosher, but neither gkrellm nor sensors can show me data until it87 is 
loaded.  I unloaded it87 and reloaded it several times just now.  Something 
funkity someplace...  Is there a new application I need to dl and install?  
Or does Bill need to work on gkrellm?

Thanks Luca.

>Luca
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-- 
Cheers, Gene
"There are four boxes to be used in defense of liberty:
 soap, ballot, jury, and ammo. Please use in that order."
-Ed Howdershelt (Author)
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