On Tue, Jul 14, 2009 at 01:29:33PM +0100, Richard Purdie wrote: > My main concern is that we don't start getting bug reports of 'missing' > events and have clearly defined expectations of when we see what kind of > events. For example, should an event be emitted when low battery causes > the backlight to be limited? How about console blanking events turning > off the backlight? Are there any other occasions we should be emitting > change events and do we need to audit other drivers? These are all good questions. I'm working through the drivers now, and there's definitely a few more that need doing. > Also, are "userspace" and "kernel" as meaningful as they could be? Would > "sysfs" and "hwkeys" make more sense and allow for other future hardware > differences? Perhaps someone will tie the backlight to an ambient light > sensor for example... Yes, though we'd need to extend the interface slightly in that case to allow the information to be provided. The ALS case is a good one - if that ends up happening in-kernel then there probably shouldn't be a UI update. -- Matthew Garrett | mjg59@xxxxxxxxxxxxx -- 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