On Mon, 18 Feb 2008 23:51:59 -0800, Philip Pokorny wrote: > There are several monitoring chips that monitor the CMOS battery > voltage. That's similar... While I agree that battery monitoring drivers and hardware monitoring drivers have some features in common (in particular measuring an input voltage) I still believe that having separate subsystems for these, with different sysfs interfaces, makes sense. The user needs are different. The CMOS battery monitoring is only there to tell you when you should change the battery. A "real" battery monitor OTOH will tell you a lot more information on the battery, how much energy there is left inside, how much time you have before the power runs out, how old the battery is, how hot it is, etc. Using the hwmon standard sysfs interface for this would probably put restrictions on what can be done. This doesn't mean though that battery drivers can't additionally export their sensor values as standard, read-only hwmon sysfs values (maybe even using common code for all battery drivers) but I don't think that this should be their primary interface. Anyway, I didn't look deep enough into the power subsystem to make myself a definitive opinion, so the above is really only a first thought. I might be wrong. -- Jean Delvare
