On Mon, 2007-05-21 at 15:55 -0400, David Zeuthen wrote: > > Cheers for doing that - that's useful to know. David, this makes some of > > the discussion with DannyK moot - what do you think about hdd powerdown > > from the desktop? > > Hmm, I think this just needs to happen automagically when g-p-m calls > SetPowerSave() on HAL Okay, sure, that makes sense. > http://people.freedesktop.org/~david/hal-spec/hal-spec.html#interface-device-systempower > > e.g. you'd have the option in g-p-m for both the "On AC" and "On > battery" tabs saying > > [x] When idle, power down hard disks and peripherals > that defaults to [x] for "On battery" and [ ] for "On AC". So as far as > I'm concerned the magic just happens in pm-powersave (which is what > SetPowerSave() on HAL calls). Sure. We've got the pm-utils infrastructure for just that I guess. > (I also think it's preferable to avoid using hdparm or sdparm for this; > the kernel driver for the hard drive / controller needs to export a > power mgmt aware interface that we can easily poke using sysfs.) Yes, totally agree - any idea for a CC so we can discuss this with the right kernel ppl? > The key thing here is this: The desktop user only needs to tweak a > simple setting (that's all what users care about; "save power or not"), > and we can expand the mechanism of what this does in pm-powersave. Sure, thanks for your mail, Richard. -- fedora-devel-list mailing list fedora-devel-list@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/fedora-devel-list
