Pavel Machek wrote: > On Út 07-03-06 10:11:31, Li Qiang-E3422C wrote: > >>'0' indicates the device is on. Other values (1-3) indicate the device >>is in a low power state. >>You can see ACPI's spec. > > > Actually, no. This is broken interface, please do not use it. 0 == on, > 2 or 3 == off. But do not use it. > Pavel Are you saying not to the the power/state that is present in the device's sysfs entry? What interface do you recommend that I use? cheers, tyc