On Mon, Feb 7, 2011 at 13:22, Mark Brown <broonie@xxxxxxxxxxxxxxxxxxxxxxxxxxx> wrote: > It is very rare to find a current system which is both sufficiently > resource constrained to want to compile out power management support > and sufficiently power insensitive to be able to tolerate doing so. Hmmm... > --- a/kernel/power/Kconfig > +++ b/kernel/power/Kconfig > @@ -1,23 +1,6 @@ > Âconfig PM > - Â Â Â bool "Power Management support" > - Â Â Â depends on !IA64_HP_SIM > - Â Â Â ---help--- > - Â Â Â Â "Power Management" means that parts of your computer are shut > - Â Â Â Â off or put into a power conserving "sleep" mode if they are not > - Â Â Â Â being used. ÂThere are two competing standards for doing this: APM > - Â Â Â Â and ACPI. ÂIf you want to use either one, say Y here and then also > - Â Â Â Â to the requisite support below. Good to see the PC-centric comments are going away :-) > - > - Â Â Â Â Power Management is most important for battery powered laptop > - Â Â Â Â computers; if you have a laptop, check out the Linux Laptop home > - Â Â Â Â page on the WWW at <http://www.linux-on-laptops.com/> or > - Â Â Â Â Tuxmobil - Linux on Mobile Computers at <http://www.tuxmobil.org/> > - Â Â Â Â and the Battery Powered Linux mini-HOWTO, available from > - Â Â Â Â <http://www.tldp.org/docs.html#howto>. > - > - Â Â Â Â Note that, even if you say N here, Linux on the x86 architecture > - Â Â Â Â will issue the hlt instruction if nothing is to be done, thereby > - Â Â Â Â sending the processor to sleep and saving power. > + Â Â Â bool > + Â Â Â default y if !IA64_HP_SIM The following architectures do not source "kernel/power/Kconfig": alpha cris h8300 Kconfig m32r m68k m68knommu microblaze parisc score sparc tile um xtensa Which means that (for now) I don't have to care that CONFIG_PM becomes unclearable. Other people may care, though... Gr{oetje,eeting}s, Â Â Â Â Â Â Â Â Â Â Â Â Geert -- Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@xxxxxxxxxxxxxx In personal conversations with technical people, I call myself a hacker. But when I'm talking to journalists I just say "programmer" or something like that. Â Â Â Â Â Â Â Â Â Â Â Â Â ÂÂ ÂÂ -- Linus Torvalds -- To unsubscribe from this list: send the line "unsubscribe linux-embedded" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
