RFC PATCH 2.6 sysfs names: fscher: change div to ripple

Philip Pokorny ppokorny at penguincomputing.com
Tue Apr 26 23:49:47 CEST 2005


A ripple counter is just a simple way of implementing a pulse frequency 
divider in hardware.

Together with a MUX to select from different bits of the ripple counter, 
it provides low cost divide by 2, 4, 8, etc.

So a ripple counter is the equivalent to a fan divisor and therefore I 
would recommend *not* to apply this patch to rename it.  Keep the 
original fan_div name.

If fscpos has a fan_ripple accessor, then *it* should be changed to 
fan_div, not the other way round.

:v)

Grant Coady wrote:

>Hi all,
>
>The fcsher and fscpos chips have a 'ripple' prescaler of ripples 
>(pulses) per revolution of the fan. 
>
>This small patch changes fscher to match fscpos and is compile tested
>
>  
>




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