On Mon, 16 Feb 2009 15:39:15 -0500 (EST) Alan Stern <stern@xxxxxxxxxxxxxxxxxxx> wrote: > On Mon, 16 Feb 2009, Kyle Moffett wrote: > > > Userspace may not have a useful decision-making capability regarding > > functionality versus power-saving, but the user it's talking to > > might! > > > > I think it would be very useful to have a mechanism for userspace to > > find out "Link detection on this NIC costs ~50mW" and "No link has > > been detected for the last 15 minutes", so that it can compile all > > that sort of information and prompt the user what devices they would > > like to disable. Perhaps an "airline mode" sort of thing? > > Even if drivers don't know how much power their devices consume (and > generally I wouldn't expect them to), it still makes sense to offer > userspace the discretionary power to force devices into a low-power > mode. USB does this. "stop using it" isn't this discretionary power ? (for NICs this is "ifconfig .. down") -- Arjan van de Ven Intel Open Source Technology Centre For development, discussion and tips for power savings, visit http://www.lesswatts.org _______________________________________________ linux-pm mailing list linux-pm@xxxxxxxxxxxxxxxxxxxxxxxxxx https://lists.linux-foundation.org/mailman/listinfo/linux-pm
