On Tue, Sep 13, 2011 at 05:22:40AM -0400, R, Durgadoss wrote: > Hi Jean, > > [snip] > > I am still suspicious... Does this mean that the thermal interrupt > > mechanism is disabled by default? > [snip] > > As you rightly pointed out, the Interrupts for the thresholds are disabled, > by default. We have to enable them if we decide to do so. > If we enable them, we will get interrupts when the input temperature > Crosses temp1_max and temp1_max_hyst in either directions. > > The temp1_max is supposed to be more than temp1_input and > temp1_max_hyst is supposed to be lesser than temp1_input. > By default the temp1_max_hyst is left at 0. > Should be set to something useful. Also, it does not have to be less than temp1_input, as long as it is less than temp1_max (which was my understanding). Worst case you would get another interrupt (when the temperature crosses temp1_max_hyst from below) which you would ignore. Interrupts should be enabled, and you can send uevents and sysfs notifications whenever a threshold is crossed. All you would have to do is to keep the old alarm state and send events whenever it changes. Example: temp=40, max_threshold=50, max=60 1st interrupt when temp reaches 50 -> ignore 2nd interrupt when temp reaches 60 -> set alarm, send uevent and sysfs notifications 3rd interrupt when temp reaches 60 (from above) -> ignore 4th interrupt when temp reaches 50 (from above) -> reset alarm, send uevent and sysfs notifications Thanks, Guenter _______________________________________________ lm-sensors mailing list lm-sensors@xxxxxxxxxxxxxx http://lists.lm-sensors.org/mailman/listinfo/lm-sensors
