diff options
author | Rafael J. Wysocki <rjw@sisk.pl> | 2007-11-19 17:41:19 -0500 |
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committer | Len Brown <len.brown@intel.com> | 2008-02-01 18:30:54 -0500 |
commit | 0e7d56e3d9d7e37c79d0e05ffb3994e34beb3bbc (patch) | |
tree | cac3e72f882085bc869df9302248a079c657bb10 /MAINTAINERS | |
parent | c3e94d899c864e558f938f9845ddb8c2e5d5ccd0 (diff) |
Suspend: Testing facility (rev. 2)
Introduce sysfs attribute /sys/power/pm_test allowing one to test the suspend
core code. Namely, writing one of the strings:
freezer
devices
platform
processors
core
to this file causes the suspend code to work in one of the test modes defined as
follows:
freezer
- test the freezing of processes
devices
- test the freezing of processes and suspending of devices
platform
- test the freezing of processes, suspending of devices and platform global
control methods(*)
processors
- test the freezing of processes, suspending of devices, platform global
control methods and the disabling of nonboot CPUs
core
- test the freezing of processes, suspending of devices, platform global
control methods, the disabling of nonboot CPUs and suspending of
platform/system devices
(*) These are ACPI global control methods on ACPI systems
Then, if a suspend is started by normal means, the suspend core will perform
its normal operations up to the point indicated by given test level. Next, it
will wait for 5 seconds and carry out the resume operations needed to transition
the system back to the fully functional state.
Writing "none" to /sys/power/pm_test turns the testing off.
When open for reading, /sys/power/pm_test contains a space-separated list of all
available tests (including "none" that represents the normal functionality) in
which the current test level is indicated by square brackets.
Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
Acked-by: Pavel Machek <pavel@ucw.cz>
Signed-off-by: Len Brown <len.brown@intel.com>
Diffstat (limited to 'MAINTAINERS')
0 files changed, 0 insertions, 0 deletions