> I said in the cover message "The cooling maps are experimental". > They work reasonably well for me with the fan I have (a noctua fan) > but other people may find them to be problematical, so one of the > reasons for sending it as RFC is to get people to test and see how > well it works. Hi Russell Maybe split the PWM parts from the cooling maps? I don't see any reason not to merge the PWM parts. Maybe sometime later I might take a closer look at the maps. I have a wrt1900ac, which is Armada XP based. It has a fan on a GPIO pin. I currently have a userspace daemon controlling the fan based on hwmon device data. Getting the kernel to do it all would be nice. Andrew