Re: New sysfs attribute for fan control: fan pulses per revolution

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On 2/22/2011 10:54 PM, Guenter Roeck wrote:
> Hi all,
> 
> while working on NCT6776F support, I realized that there is a fan control
> attribute which is not currently supported by the syfs ABI: The number of
> fan pulses per revolution. On the NCT6776F, this can be configured in Bank 6,
> registers 0x44 to 0x46. Possible values are 0..3 for 4, 1, 2, or 3 pulses 
> per revolution.
> 
> I encountered the same parameter when working on PMBus devices. At the time,
> I thought this was a variant of a fan divisor (ie a divisor of 1, 2, 3, or 4),
> but apparently it is different and independent of the fan divisor.

How is it any different than the fan divisor?

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