[ltp] Active Protection System

[Roman Haefeli]

On Fri, 2008-10-10 at 21:37 +0200, Roman Haefeli wrote:
> hi all
> 
> i recently bought a t61 and now i heard that some thinkpads have
> harddisk protection called 'active protections system', which parks the
> harddisk head in order to protect disk from damage in case of fall. from
> what i heard, this is implemented using an accelerometer chip.
> 
> first, i would like to know, how i can find out, whether my box has APS.
> second i would like to know, if there is linux support to read data from
> them.

yo.. to answer my own question:

the module responsible for handling the accelerometers is called
'hdaps_ec' and provides a sysfs interface on: 

/sys/devices/platform/hdaps/position

roman



		
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