linux-kernel - Re: Acer Aspire One fan control

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Date:	Fri, 13 Feb 2009 20:45:40 +0100
From:	Peter Feuerer <peter@...e.net>
To:	Matthew Garrett <mjg59@...f.ucam.org>
Cc:	LKML <linux-kernel@...r.kernel.org>
Subject: Re: Acer Aspire One fan control

Matthew Garrett writes:

>> I get the temperature by calling ec_read(0x58) and can read/write the state 
>> of the fan by ec_write to / ec_read from 0x55. Actually I don't know if 
>> those embedded controller registers are used by the firmware. How can I 
>> find it out?
> 
> Ok, yup, that should be safe. It might be nice to implement this as an 
> hwmon driver, potentially tying it into the thermal layer.

Thank you very much, I will have a deeper look into hwmon and the thermal 
layer.

--peter
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