[lm-sensors] [PATCH 2.6.25.4] f71882.c driver, Added PWM/FAN control.
Hans de Goede
j.w.r.degoede at hhs.nl
Thu Jun 12 10:05:54 CEST 2008
Mark van Doesburg wrote:
> Hello Hans,
>
> Your proposal sounds fine to me. I wasn't too happy with the fan?_target
> pwm? conflict either. So I will implement the following:
>
> 1. Remove fan?_target.
> 2. Add fan?_full_speed.
> 3. Interpret pwm? as the duty cycle when in duty cycle mode.
> 4. Scale pwm? from 0..255 to 0..fan?_full_speed when in rpm mode.
> 5. Change the behavior of pwm?_enable not to change pwm vs. duty
> cycle mode.
> 5. Add module option to select rpm/duty cycle mode.
> 6. Add pwm?_auto*
Excellent! (and thanks!)
> My BIOS doesn't put a usefull value in the full speed register. There is
> also no way to set the case fan to anything but a fixed PWM value.
To bad, I guess that it doesn't use rpm mode then, if the chip doesn't put
anything usefull in the fullspeed reg itself either I guess most BIOS'es will
not use rpm mode, but will stick with pwm mode.
Regards,
hans
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