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%. -- Jean Delvare _______________________________________________ lm-sensors mailing list lm-sensors@xxxxxxxxxxxxxx http://lists.lm-sensors.org/mailman/listinfo/lm-sensors
