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authorLinus Torvalds <torvalds@ppc970.osdl.org>2005-04-16 15:20:36 -0700
committerLinus Torvalds <torvalds@ppc970.osdl.org>2005-04-16 15:20:36 -0700
commit1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (patch)
tree0bba044c4ce775e45a88a51686b5d9f90697ea9d /kernel/power/Kconfig
Linux-2.6.12-rc2v2.6.12-rc2
Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
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+config PM
+ bool "Power Management support"
+ ---help---
+ "Power Management" means that parts of your computer are shut
+ off or put into a power conserving "sleep" mode if they are not
+ being used. There are two competing standards for doing this: APM
+ and ACPI. If you want to use either one, say Y here and then also
+ to the requisite support below.
+
+ Power Management is most important for battery powered laptop
+ computers; if you have a laptop, check out the Linux Laptop home
+ page on the WWW at <http://www.linux-on-laptops.com/> or
+ Tuxmobil - Linux on Mobile Computers at <http://www.tuxmobil.org/>
+ and the Battery Powered Linux mini-HOWTO, available from
+ <http://www.tldp.org/docs.html#howto>.
+
+ Note that, even if you say N here, Linux on the x86 architecture
+ will issue the hlt instruction if nothing is to be done, thereby
+ sending the processor to sleep and saving power.
+
+config PM_DEBUG
+ bool "Power Management Debug Support"
+ depends on PM
+ ---help---
+ This option enables verbose debugging support in the Power Management
+ code. This is helpful when debugging and reporting various PM bugs,
+ like suspend support.
+
+config SOFTWARE_SUSPEND
+ bool "Software Suspend (EXPERIMENTAL)"
+ depends on EXPERIMENTAL && PM && SWAP
+ ---help---
+ Enable the possibility of suspending the machine.
+ It doesn't need APM.
+ You may suspend your machine by 'swsusp' or 'shutdown -z <time>'
+ (patch for sysvinit needed).
+
+ It creates an image which is saved in your active swap. Upon next
+ boot, pass the 'resume=/dev/swappartition' argument to the kernel to
+ have it detect the saved image, restore memory state from it, and
+ continue to run as before. If you do not want the previous state to
+ be reloaded, then use the 'noresume' kernel argument. However, note
+ that your partitions will be fsck'd and you must re-mkswap your swap
+ partitions. It does not work with swap files.
+
+ Right now you may boot without resuming and then later resume but
+ in meantime you cannot use those swap partitions/files which were
+ involved in suspending. Also in this case there is a risk that buffers
+ on disk won't match with saved ones.
+
+ For more information take a look at <file:Documentation/power/swsusp.txt>.
+
+config PM_STD_PARTITION
+ string "Default resume partition"
+ depends on SOFTWARE_SUSPEND
+ default ""
+ ---help---
+ The default resume partition is the partition that the suspend-
+ to-disk implementation will look for a suspended disk image.
+
+ The partition specified here will be different for almost every user.
+ It should be a valid swap partition (at least for now) that is turned
+ on before suspending.
+
+ The partition specified can be overridden by specifying:
+
+ resume=/dev/<other device>
+
+ which will set the resume partition to the device specified.
+
+ Note there is currently not a way to specify which device to save the
+ suspended image to. It will simply pick the first available swap
+ device.
+