will issue the hlt instruction if nothing is to be done, thereby
sending the processor to sleep and saving power.
-config PM_LEGACY
- bool "Legacy Power Management API (DEPRECATED)"
- depends on PM
- default n
- ---help---
- Support for pm_register() and friends. This old API is obsoleted
- by the driver model.
-
- If unsure, say N.
-
config PM_DEBUG
bool "Power Management Debug Support"
depends on PM
RTC across reboots, so that you can debug a machine that just hangs
during suspend (or more commonly, during resume).
- To use this debugging feature you should attempt to suspend the machine,
- then reboot it, then run
+ To use this debugging feature you should attempt to suspend the
+ machine, reboot it and then run
dmesg -s 1000000 | grep 'hash matches'
config PM_SLEEP
bool
- depends on SUSPEND || HIBERNATION
+ depends on SUSPEND || HIBERNATION || XEN_SAVE_RESTORE
default y
config SUSPEND
called "hibernation" in user interfaces. STD checkpoints the
system and powers it off; and restores that checkpoint on reboot.
- You can suspend your machine with 'echo disk > /sys/power/state'.
+ You can suspend your machine with 'echo disk > /sys/power/state'
+ after placing resume=/dev/swappartition on the kernel command line
+ in your bootloader's configuration file.
+
Alternatively, you can use the additional userland tools available
from <http://suspend.sf.net>.
notification of APM "events" (e.g. battery status change).
In order to use APM, you will need supporting software. For location
- and more information, read <file:Documentation/pm.txt> and the
+ and more information, read <file:Documentation/power/pm.txt> and the
Battery Powered Linux mini-HOWTO, available from
<http://www.tldp.org/docs.html#howto>.