On Fri, 16 Oct 2009, Alan Jenkins wrote: > So userspace is supposed to realise that "0" means "this attribute is > not supported", as opposed to "I am a brand new battery and don't > remember being factory-tested". > > How about returning -1 for batteries without _BIX? How about NOT registering attributes that don't exist? That's the proper way of doing things in sysfs. When that's not possible, I'd suggest doing the right thing and returning an error of some sort (ENXIO, ENOTSUP, etc)... -- "One disk to rule them all, One disk to find them. One disk to bring them all and in the darkness grind them. In the Land of Redmond where the shadows lie." -- The Silicon Valley Tarot Henrique Holschuh -- To unsubscribe from this list: send the line "unsubscribe linux-acpi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
