On Wed, 2008-12-24 at 11:07 +0800, Zhang Rui wrote: > /sys/class/backlight/.../brightness returns a cached value, > which confuses a lot of users. > > Make the "brightness" reflect the actual backlight levels, > and mark /sys/class/backlight/.../brightness as depreacated > in this patch. This isn't an acceptable approach I'm afraid. We have some hardware which needs limiting of the backlight brightness in cases of low battery for example. "brightness" is the user requested value, "actual_brightness" is the one that is actually active. This also makes it clear when things like console blanking are active since the actual value is 0 but brightness preserves the user requested value. Cheers, Richard -- Richard Purdie Intel Open Source Technology Centre -- 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
