On Mon, Oct 11, 2010 at 04:45:32PM +0200, Jean Delvare wrote: > Salut Simon, > > On Mon, 11 Oct 2010 14:25:58 +0000, Simon Guinot wrote: > > I am currently looking to add hwmon support for the fan device found on > > Network Space Max v2 boards (ARM Kirkwood SoC). > > > > The fan speed can be configured trough GPIOs. The GPIO settings allow to > > change the fan input voltage (via some resistors). > > After a quick look at the hwmon sysfs interface, I have failed to find > > the appropriate way to expose a non-pwm fan. If any, what is the > > dedicated sysfs entry to set speed for a non-pwm fan ? > > Maybe that a fake pwm interface is needed ? > > Don't let yourself be fooled by the "pwm[1-n]" and "pwm[1_n]_enable" > files names. These are valid for all fan control outputs, be they PWM > or DC. As a matter of fact, "pwm[1-n]_mode" lets you advertise whether > the controller is using PWM or DC. > > All that really matters is that you use 0-255 as the pwm[1-n] range > matching 0-100%. Thank you. Simon
Attachment:
signature.asc
Description: Digital signature
_______________________________________________ lm-sensors mailing list lm-sensors@xxxxxxxxxxxxxx http://lists.lm-sensors.org/mailman/listinfo/lm-sensors
