On Wed, 4 Jan 2006, Pavel Machek wrote: > > As I mentioned in the thread (currently happening, BTW) on the linux-pm > > list, what you want to do is accept a string that reflects an actual state > > that the device supports. For PCI devices that support low-power states, > > this would be "D1", "D2", "D3", etc. For USB devices, which only support > > an "on" and "suspended" state, the values that this patch parses would > > actually work. > > We want _common_ values, anyway. So, we do not want "D0", "D1", "D2", > "D3hot" in PCI cases. We probably want "on", "D1", "D2", "suspend", > and I'm not sure about those "D1" and "D2" parts. Userspace should not > have to know about details, it will mostly use "on"/"suspend" anyway. It would be good to make the details available so that they are there when needed. For instance, we might export "D0", "on", "D1", "D2", "D3", and "suspend", treating "on" as a synonym for "D0" and "suspend" as a synonym for "D3". Alan Stern
