[lm-sensors] RE: vt8231.c

[gcoady@gmail.com (Grant Coady)]

Jean Delvare wrote:
> BTW, Knut...
> 
> 
>>Fans:
>>==
>>I connected a fan for tests. It?s a Verax fan with 9 pulses / revolution.
>>
>>In sensors.conf I used the four dividers 1,2,4,9 instead of the *:
>>
>>    set fan1_div *
>>    set fan1_min 1000
>>
>>Here are the results
>>
>>1:    fan1:     12024 RPM  (min =    0 RPM, div = 1)
>>2:    fan1:     11702 RPM  (min =    0 RPM, div = 2)
>>4:    fan1:     11702 RPM  (min =    0 RPM, div = 4)
>>8:    fan1:     12603 RPM  (min =  999 RPM, div = 8)
>>9:    fan1:     11915 RPM  (min =    0 RPM, div = 2)
>>
>>Obviously the fan1_min are ignored most of the time and dividers are not 
>>handled correctly.
> 
> 
> Dividers work the way they are supposed to. You do not seem to
> understand what that way is. I invite you to read the following document:
>   http://www2.lm-sensors.nu/~lm78/cvs/lm_sensors2/doc/fan-divisors
> 
> Hopefully this will help you understand how it works.
> 
> If you use a 9 pulse/rev fan (didn't know these existed...) instead of
> standard 2 pulse/rev, you should add the following line to your
> configuration file:
> 
>   conpute fan1 @*2/9, @*9/2

Possibly:

	compute fan1 @*8/9, @*9/8

since fan1_div = 8 is only one gave a result for fan1_min?

Grant.
>