On Monday, September 24, 2012, Arjan van de Ven wrote: > On 9/24/2012 12:13 AM, Alan Stern wrote: > > Therefore all we need is an API for individual devices, not for > > domains. Of course, userspace may want to know which devices all > > belong to the same power domain. > > agreed on both. > > I'd like PowerTOP to be able to report at least who keeps power alive and such.. ;-) Sure enough. That's not so simple in general, though, because there may be a hierarchy of power domains and it doesn't need to be a tree (there are domains having two "parents", for example). Exposing _that_ to user space in a straightforward way may be sort of challenging. Thanks, Rafael -- 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