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authorBojan Smojver <bojan@rexursive.com>2012-06-16 00:09:58 +0200
committerRafael J. Wysocki <rjw@sisk.pl>2012-07-01 13:31:22 +0200
commit62c552ccc3eda1198632a4f344aa32623d226bab (patch)
treefbd85e76542a715a8e988dddb59e3df859939fb5 /Documentation/power
parent6887a4131da3adaab011613776d865f4bcfb5678 (diff)
PM / Hibernate: Enable suspend to both for in-kernel hibernation.
It is often useful to suspend to memory after hibernation image has been written to disk. If the battery runs out or power is otherwise lost, the computer will resume from the hibernated image. If not, it will resume from memory and hibernation image will be discarded. Signed-off-by: Bojan Smojver <bojan@rexursive.com> Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
Diffstat (limited to 'Documentation/power')
-rw-r--r--Documentation/power/swsusp.txt5
1 files changed, 5 insertions, 0 deletions
diff --git a/Documentation/power/swsusp.txt b/Documentation/power/swsusp.txt
index ac190cf1963e..92341b84250d 100644
--- a/Documentation/power/swsusp.txt
+++ b/Documentation/power/swsusp.txt
@@ -33,6 +33,11 @@ echo shutdown > /sys/power/disk; echo disk > /sys/power/state
echo platform > /sys/power/disk; echo disk > /sys/power/state
+. If you would like to write hibernation image to swap and then suspend
+to RAM (provided your platform supports it), you can try
+
+echo suspend > /sys/power/disk; echo disk > /sys/power/state
+
. If you have SATA disks, you'll need recent kernels with SATA suspend
support. For suspend and resume to work, make sure your disk drivers
are built into kernel -- not modules. [There's way to make