Jean Delvare wrote: > On Tue, 24 Nov 2009 15:09:57 +0100, Clemens Ladisch wrote: > > This means that one of the already existing limit values must be the > > reference base, so we'd need just a mechanism to specify which of them > > is it, i.e., "temp1_relative_base: max". If we'd have > > "temp1_relative: 70000", the application would have to search among the > > limit values for one with the same value. > > I fail to see why the application would care about this at all. When in > relative mode, all other values would be offset by the temp#_relative > value. But that value itself would not be displayed (it has no physical > value, otherwise we wouldn't be in absolute mode, would we?) > ... > > > temp1_relative: true > > This is taking flexibility away from us, for no benefit that I can see. > Am I missing something? The application has to display something like "24 °C below the limit", so how should it know that the 70°C should be named "the limit"? To use an example, my CPU has these entries like these: temp1_input: 29875 temp1_max: 70000 temp1_crit: 95000 temp1_crit_hyst: 92500 How should these entries be displayed? (we know that: "40.1 °C below limit", "limit", "25 °C above limit" etc.) But what algorithm should the application (or libsensors) use to create those labels? If we have "temp1_relative: 70000", then this happens to be the "max" limit; but what if some CPU vendor decides to define, e.g., the value 0 as the "normal" operating temperatire, so that the entries would look like this: temp1_input: -1000 temp1_max: 40000 temp1_relative: 0 Should the values be labeled as "1 °C below normal" and "40 °C above normal", and how should the application know that 0 is to be labeled "normal"? It might make more sense to display the temperature just as "41 °C below max", in which case the actual value of temp1_relative is not used at all. "Relative" means that any value is meaningful only in comparison with other values/limits, so it does not make sense to declare one point on the scale as base. > Additionally it wouldn't fit in libsensors as it exists today. Then the best bet would probably be an entry like temp#_unit, with 0 = absolute °C (default); 1 = relative °C or °K; other values "unknown". Even if some silly scale is introduced later, applications that read this entry then know that they must not display a unit like °C for unknown unit specifications. Best regards, Clemens _______________________________________________ lm-sensors mailing list lm-sensors@xxxxxxxxxxxxxx http://lists.lm-sensors.org/mailman/listinfo/lm-sensors
