On Fri, 22 Aug 2008, Pavel Machek wrote: > Hi! > > > > - suspending has side effects > > > > I'm not sure what you mean by that. Suspension always has side effects > > of one kind or another. > > > > > Suspension in USB has always side effects. That's not true for other > > > subsystems. > > > > Name one. At the very least, suspending a device means you can't use > > it again without first calling the driver's resume method. That's a > > side effect. > > IDE, actually. I don't think it is relevant, but you can do hdparm -y, > and it will automatically spin up when you try to talk to it next > time. It's a matter of definitions... "hdparm -y" doesn't call the driver's suspend method, so in some sense it isn't truly a suspend. But it's true that some systems can power down more or less transparently (with restart latency as the only visible side effect). Alan Stern _______________________________________________ linux-pm mailing list linux-pm@xxxxxxxxxxxxxxxxxxxxxxxxxx https://lists.linux-foundation.org/mailman/listinfo/linux-pm
