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From: Guenter Roeck <linux@roeck-us.net>
To: Michael Zintakis <michael.zintakis@googlemail.com>
Cc: lm-sensors@lm-sensors.org, Len Brown <lenb@kernel.org>,
	linux-acpi@vger.kernel.org
Subject: Re: [lm-sensors] Fintek f71882fg ACPI conflict
Date: Thu, 28 Jun 2012 11:57:12 -0700	[thread overview]
Message-ID: <20120628185712.GA20159@roeck-us.net> (raw)
In-Reply-To: <4FEC96B7.50500@googlemail.com>

On Thu, Jun 28, 2012 at 06:39:03PM +0100, Michael Zintakis wrote:

[ ... ]

> >Problem is most likely that the BIOS does not "kick-start" the fan(s),
> >and the chip does not have a register to set a "start fan" pwm value (other
> >chips such as the NCT677X do have a register for that purpose).
> Yep, that seems to be the case indeed.
> 
> > So you may
> >be stuck with your manual method if you want to keep the fan running at speeds
> >lower than pwm=190.
> Would it be possible for such feature to be implemented in the
> f71882fg driver? Most of the stuff which is done with my bash script
> will be very easy to implement in the driver as it involves nothing
> more than playing with the registry values and adding a bit of logic
> to it. Would that be possible?
> 
No, that is not in the scope of a kernel driver. You could use fancontrol(8),
but that would mean you have to switch to manual fan control (from chip
perspective).

Guenter

WARNING: multiple messages have this Message-ID (diff)
From: Guenter Roeck <linux@roeck-us.net>
To: Michael Zintakis <michael.zintakis@googlemail.com>
Cc: lm-sensors@lm-sensors.org, Len Brown <lenb@kernel.org>,
	linux-acpi@vger.kernel.org
Subject: Re: [lm-sensors] Fintek f71882fg ACPI conflict
Date: Thu, 28 Jun 2012 18:57:12 +0000	[thread overview]
Message-ID: <20120628185712.GA20159@roeck-us.net> (raw)
In-Reply-To: <4FEC96B7.50500@googlemail.com>

On Thu, Jun 28, 2012 at 06:39:03PM +0100, Michael Zintakis wrote:

[ ... ]

> >Problem is most likely that the BIOS does not "kick-start" the fan(s),
> >and the chip does not have a register to set a "start fan" pwm value (other
> >chips such as the NCT677X do have a register for that purpose).
> Yep, that seems to be the case indeed.
> 
> > So you may
> >be stuck with your manual method if you want to keep the fan running at speeds
> >lower than pwm\x190.
> Would it be possible for such feature to be implemented in the
> f71882fg driver? Most of the stuff which is done with my bash script
> will be very easy to implement in the driver as it involves nothing
> more than playing with the registry values and adding a bit of logic
> to it. Would that be possible?
> 
No, that is not in the scope of a kernel driver. You could use fancontrol(8),
but that would mean you have to switch to manual fan control (from chip
perspective).

Guenter

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  reply	other threads:[~2012-06-28 18:56 UTC|newest]

Thread overview: 33+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2012-06-26 23:56 [lm-sensors] Fintek f71882fg ACPI conflict Michael Zintakis
2012-06-27 17:15 ` Guenter Roeck
2012-06-27 17:15   ` [lm-sensors] " Guenter Roeck
2012-06-27 23:00   ` Michael Zintakis
2012-06-27 23:00     ` Michael Zintakis
2012-06-28  1:45     ` Matthew Garrett
2012-06-28  1:45       ` Matthew Garrett
2012-06-28 11:15       ` Michael Zintakis
2012-06-28 11:15         ` Michael Zintakis
2012-06-28 12:40         ` Jean Delvare
2012-06-28 12:40           ` Jean Delvare
2012-06-28 12:53           ` Michael Zintakis
2012-06-28 12:53             ` Michael Zintakis
2012-06-28 13:27             ` Jean Delvare
2012-06-28 13:27               ` Jean Delvare
2012-06-29  5:35               ` Robert Hancock
2012-06-29  5:35                 ` Robert Hancock
2012-06-29 12:11                 ` Michael Zintakis
2012-06-29 12:11                   ` Michael Zintakis
2012-06-29 16:34                   ` Guenter Roeck
2012-06-29 16:34                     ` Guenter Roeck
2012-06-28  5:20     ` Guenter Roeck
2012-06-28  5:20       ` Guenter Roeck
2012-06-28 11:31       ` Michael Zintakis
2012-06-28 11:31         ` Michael Zintakis
2012-06-28 17:12         ` Guenter Roeck
2012-06-28 17:12           ` Guenter Roeck
2012-06-28 17:39           ` Michael Zintakis
2012-06-28 17:39             ` Michael Zintakis
2012-06-28 18:57             ` Guenter Roeck [this message]
2012-06-28 18:57               ` Guenter Roeck
2012-06-28  3:15 ` Andrey Repin
2012-06-28 11:36 ` Michael Zintakis

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