Hi Guenter, On Sun, 20 Jun 2010 09:37:59 -0700, Guenter Roeck wrote: > the current hwmon sysfs API does not specify critical or fault limits for voltage > and current readings. > > Many recent power controller/monitoring chips have support for such limits in addition > to alarm limits. Typical action, when a the critical or fault limit is reached, > may be a board reset or power shutdown, or to report the fault condition. > > Examples for chips supporting critical/fault limits are SMM665 and variants as well > as many PMBus devices, such as MAX8688, MAX16064, LTC2978, and others. > > I think it would make sense to add critical/fault limits to the hwmon sysfs API, > to be able to report those limits if supported by a chip. > > Any thoughts on this ? I agree it would be good to have standard names (and libsensors support) if these features are popular. It might be a little difficult to come up with the right attribute names though. For temperatures, we have temp[1-*]_crit, for the critical limit on the high end. We don't have a name for the critical limit on the low end, because no chip ever implemented that. The name we chose doesn't offer much possibilities for a nice name while staying consistent. Maybe "lcrit" would be acceptable for the low end critical limit, and we keep "crit" for the high end critical limit? -- Jean Delvare _______________________________________________ lm-sensors mailing list lm-sensors@xxxxxxxxxxxxxx http://lists.lm-sensors.org/mailman/listinfo/lm-sensors
