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Date:	Sun, 20 Sep 2009 14:20:34 +0200
From:	Luca Tettamanti <>
To:	wixor <>
	Linux Kernel Mailing List <>
Subject: Re: [lm-sensors] it87 sensors need an ACPI driver (2.6.31)

On Sun, Sep 20, 2009 at 10:20 AM, wixor <> 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).

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