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Date: Tue, 24 Mar 2009 22:29:25 -0300 From: Henrique de Moraes Holschuh <hmh@....eng.br> To: "Renato S. Yamane" <yamane@...mondcut.com.br> Cc: LKML <linux-kernel@...r.kernel.org>, jnelson@...poni.net Subject: Re: Thinkpad T61 - Fan running a lot of time On Tue, 24 Mar 2009, Renato S. Yamane wrote: > # echo level 7 > /proc/acpi/ibm/fan > bash: echo: write error: Invalid argument > > How can I change fan level? Read the driver documentation, at Documentation/laptops/thinkpad-acpi.txt. Fan control is locked by default, for hardware safety reasons. The docs tell you why, how to use the fan control interface, and how to unlock it. Also, I suggest you get used to the hwmon fan control interface on /sys, procfs is going away sooner or later... -- "One disk to rule them all, One disk to find them. One disk to bring them all and in the darkness grind them. In the Land of Redmond where the shadows lie." -- The Silicon Valley Tarot Henrique Holschuh -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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