laptop fan control via FreeBSD

[Polytropon]

On Sat, 19 Jan 2013 16:55:23 +0100, Xavier wrote:
> On Sat, Jan 19, 2013 at 03:13:58PM +0100, Fabian Keil wrote:
> 
> Hi Fabian,
> 
> > Xavier <xavierfreebsdquestions at gmail.com> wrote:
> >
> > > Is there any way to control the on and off the fan on a laptop using FreeBSD?
> >
> > It depends on the laptop. On mine it works:
> >
> > fk at r500 ~ $sysctl -ad | grep fan
> > dev.acpi_ibm.0.fan_speed: Fan speed
> > dev.acpi_ibm.0.fan_level: Fan level
> > dev.acpi_ibm.0.fan: Fan enable
> >
> 
> My output of 'sysctl -ad | grep fan' don't show these parameters. Why ?
> Because, my BIOS don't support these aparameters ? Another answer ?

For laptops, you usually load a kernel module for interfacing
with the specific ACPI functions, like acpi_ibm.ko. There are
several others, but see "man acpi_ibm" for some impressions.




-- 
Polytropon
Magdeburg, Germany
Happy FreeBSD user since 4.0
Andra moi ennepe, Mousa, ...