diff options
Diffstat (limited to 'kernel/power/Kconfig')
-rw-r--r-- | kernel/power/Kconfig | 11 |
1 files changed, 8 insertions, 3 deletions
diff --git a/kernel/power/Kconfig b/kernel/power/Kconfig index 5001c652028c..495b7d4dd330 100644 --- a/kernel/power/Kconfig +++ b/kernel/power/Kconfig | |||
@@ -78,17 +78,22 @@ config PM_SYSFS_DEPRECATED | |||
78 | are likely to be bus or driver specific. | 78 | are likely to be bus or driver specific. |
79 | 79 | ||
80 | config SOFTWARE_SUSPEND | 80 | config SOFTWARE_SUSPEND |
81 | bool "Software Suspend" | 81 | bool "Software Suspend (Hibernation)" |
82 | depends on PM && SWAP && (((X86 || PPC64_SWSUSP) && (!SMP || SUSPEND_SMP)) || ((FRV || PPC32) && !SMP)) | 82 | depends on PM && SWAP && (((X86 || PPC64_SWSUSP) && (!SMP || SUSPEND_SMP)) || ((FRV || PPC32) && !SMP)) |
83 | ---help--- | 83 | ---help--- |
84 | Enable the suspend to disk (STD) functionality. | 84 | Enable the suspend to disk (STD) functionality, which is usually |
85 | called "hibernation" in user interfaces. STD checkpoints the | ||
86 | system and powers it off; and restores that checkpoint on reboot. | ||
85 | 87 | ||
86 | You can suspend your machine with 'echo disk > /sys/power/state'. | 88 | You can suspend your machine with 'echo disk > /sys/power/state'. |
87 | Alternatively, you can use the additional userland tools available | 89 | Alternatively, you can use the additional userland tools available |
88 | from <http://suspend.sf.net>. | 90 | from <http://suspend.sf.net>. |
89 | 91 | ||
90 | In principle it does not require ACPI or APM, although for example | 92 | In principle it does not require ACPI or APM, although for example |
91 | ACPI will be used if available. | 93 | ACPI will be used for the final steps when it is available. One |
94 | of the reasons to use software suspend is that the firmware hooks | ||
95 | for suspend states like suspend-to-RAM (STR) often don't work very | ||
96 | well with Linux. | ||
92 | 97 | ||
93 | It creates an image which is saved in your active swap. Upon the next | 98 | It creates an image which is saved in your active swap. Upon the next |
94 | boot, pass the 'resume=/dev/swappartition' argument to the kernel to | 99 | boot, pass the 'resume=/dev/swappartition' argument to the kernel to |