Hi! > > > And that's exactly what should be done. Have a user space process controlling > > > that, because avoiding to thaw user space doesn't buy us almost > > > anything. > > > > That makes Zaurus implement different user-kernel interface than PC > > class machine, because of hardware quirk. > > Let me say that again: If Zaurus needs to resume everything except for > user space periodically to monitor the battery charger, I'm not sure if our > suspend interface is the right one for it in the first place. Well, Zaurus does not need to resume everything. SPI+charger code is enough, and that would be preffered. No need to touch disk etc. > It seriously looks like a workaround for the lack of appropriately implemented > runtime PM, just like the Android's opportunistic suspend. No, not really. I'm running standard Debian; I do not want/need anything like opportunistic suspend. > > > Now, I know that it's probably easier to modify the kernel than to write > > > a user space tool for that, test it and so on, but "easier" is not necessarily > > > "better". > > > > It is easier, allows us to keep same user-kernel interface on PC and > > Zaurus, and is compatible with 2.6.38. > > > > Heck, I'm used to typing "echo mem > /sys/power/state". I should not > > have to learn different interface just because Zaurus does not have > > proper hardware charger. > > No, this interface should not be used on Zaurus at all. It's not mean for > that and while you can hack it to kind of work, it still is hacking rather > than designing things. Why not? I want the Zaurus to sleep. Why should I have to know how its charging unit works? Why should I use different interface than on PC? I want it to suspend, put it into backpack and move... > > Bootloader takes care of battery in that case. > > So the difference is that we let someone else worry. Cool. :-) Yes. > > Ok, see the spitz_should_wakeup() function in arch/arm/mach-pxa/* and > > should_wakeup() usage. > > OK, I will. Thanks. Pavel -- (english) http://www.livejournal.com/~pavelmachek (cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html _______________________________________________ linux-pm mailing list linux-pm@xxxxxxxxxxxxxxxxxxxxxxxxxx https://lists.linux-foundation.org/mailman/listinfo/linux-pm
