Hi all, This is a two-part patchset. The first patch extends the hwmon sysfs interface to include power capping features and extra data about the accuracy and internal operation of the power meter. The second patch implements a hwmon driver for ACPI 4.0 compliant power meters that uses the expanded sysfs interface. I don't have an example DSDT from any actual piece of hardware, but I can send some sample ASL code that I've been using to outfit kvm with a power meter if anyone requests it. This latest revision updates the driver itself to send sysfs poll notifications upon receipt of ACPI events and updates the sysfs hwmon documentation to reflect that. --D