From: Charles Lepple <clepple@ghz.cc>
To: linux-kernel@vger.kernel.org
Subject: Re: Can't read fan-speeds from i2c
Date: Tue, 19 Aug 2003 22:48:14 -0400 [thread overview]
Message-ID: <3F42E16E.8070809@ghz.cc> (raw)
In-Reply-To: <1061324213.708.6.camel@chevrolet.hybel>
Stian Jordet wrote:
> I have a Asus CUV266-DLS, which uses the as99127f chipset. Everything
> seems to work as it is supposed to, except for fan-speeds. They say 0.
> Is that supposed behaviour since the as99127f doesn't have any
> datasheets, or am I doing something wrong?
Have you tried adjusting the fan divisors (fan_div* in
/sys/bus/i2c/devices/*)? Keep multiplying the fan divisor by two, and
check the fan_input* devices-- you may have slow fans (or divide-by-two
speed sensors), and you might need a longer sampling interval to see the
lower speed.
Another option is to start the Windows monitoring program, perform a
warm reboot into Linux, and use i2cdump to see how they configured the
registers. Be sure to prevent your i2c drivers from loading, as a number
of them initialize the chips to default settings.
--
Charles Lepple <ghz.cc!clepple>
http://www.ghz.cc/charles/
next prev parent reply other threads:[~2003-08-20 2:48 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2003-08-19 20:16 Can't read fan-speeds from i2c Stian Jordet
2003-08-19 20:53 ` Greg KH
2003-08-19 20:57 ` Stian Jordet
2003-08-19 21:02 ` Greg KH
2003-08-19 21:34 ` Stian Jordet
2003-08-19 21:43 ` Greg KH
2003-08-20 2:48 ` Charles Lepple [this message]
2003-08-20 14:24 ` Stian Jordet
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