On Thu, 20 Sep 2012, Sarah Sharp wrote: > Two weeks ago at Linux Plumbers Conference, I presented about the Intel > Lynx Point USB port power off mechanism. This email is a report out of > what was discussed, and a kick off point for further discussion. > - Len Brown mentioned that it's likely that other types of system > devices will expose power resources in the same way it's done for USB > devices. Rafael Wysocki mentioned that it would be nice to get a > more generic representation of the power resources into struct > device. Indeed, this is very similar in some ways to the work that Aaron Lu is doing for his "Zero-Power Optical Disc Drives" series of patches. The idea is that newer CD/DVD drives can be powered off completely, and they will still notify the system when the user presses a button or opens the drive door. Perhaps we should think about including the "power-off" concept into the PM core. Given that it will be used by more than one subsystem, this seems like the best place for it. Alan Stern -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
