On Fri, Sep 21, 2012 at 04:09:13PM -0400, Alan Stern wrote: > 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. Perhaps we need a mechanism in the PM core for a subsystem to specify whether power off prevents wakeup? Sarah Sharp -- 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
