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| author | Karel Zak | 2013-04-23 13:20:15 +0200 |
|---|---|---|
| committer | Karel Zak | 2013-04-23 13:20:15 +0200 |
| commit | ece44f19f423408f576f348fed2845c876d72c6e (patch) | |
| tree | 205f10d5bc3e671df761afe09639d1a1a2e4c93d /sys-utils | |
| parent | umount: use devno to identify --all-target devices (diff) | |
| download | kernel-qcow2-util-linux-ece44f19f423408f576f348fed2845c876d72c6e.tar.gz kernel-qcow2-util-linux-ece44f19f423408f576f348fed2845c876d72c6e.tar.xz kernel-qcow2-util-linux-ece44f19f423408f576f348fed2845c876d72c6e.zip | |
rtcwake: add support for "freeze" mode
Supported by Linux since 3.9 (upstream commit
7e73c5ae6e7991a6c01f6d096ff8afaef4458c36).
Signed-off-by: Karel Zak <kzak@redhat.com>
Diffstat (limited to 'sys-utils')
| -rw-r--r-- | sys-utils/rtcwake.8 | 6 | ||||
| -rw-r--r-- | sys-utils/rtcwake.c | 1 |
2 files changed, 7 insertions, 0 deletions
diff --git a/sys-utils/rtcwake.8 b/sys-utils/rtcwake.8 index dea5c940c..def3faaef 100644 --- a/sys-utils/rtcwake.8 +++ b/sys-utils/rtcwake.8 @@ -101,6 +101,12 @@ ACPI state S3 (Suspend-to-RAM). This state offers significant power savings as everything in the system is put into a low-power state, except for memory, which is placed in self-refresh mode to retain its contents. .TP +.B freeze +The processes are frozen, all the devices are suspended and all the processors +idles. This state is a general state that does not need any platform specific +support, but it saves less power than susepnd to RAM, because the system is +still in a running state. (since Linux 3.9) +.TP .B disk ACPI state S4 (Suspend-to-disk). This state offers the greatest power savings, and can be used even in the absence of low-level platform support for power diff --git a/sys-utils/rtcwake.c b/sys-utils/rtcwake.c index 369b0c871..f2efc8728 100644 --- a/sys-utils/rtcwake.c +++ b/sys-utils/rtcwake.c @@ -434,6 +434,7 @@ int main(int argc, char **argv) || strcmp(optarg, "on") == 0 || strcmp(optarg, "no") == 0 || strcmp(optarg, "off") == 0 + || strcmp(optarg, "freeze") == 0 || strcmp(optarg, "disable") == 0 || strcmp(optarg, "show") == 0 ) { |