Greg Kroah-Hartman
598cf27219
Link: https://lore.kernel.org/r/20260217200002.683975158@linuxfoundation.org Tested-by: Florian Fainelli <florian.fainelli@broadcom.com> Tested-by: Takeshi Ogasawara <takeshi.ogasawara@futuring-girl.com> Tested-by: Peter Schneider <pschneider1968@googlemail.com> Tested-by: Jon Hunter <jonathanh@nvidia.com> Tested-by: Salvatore Bonaccorso <carnil@debian.org> Tested-by: Brett A C Sheffield <bacs@librecast.net> Tested-by: Mark Brown <broonie@kernel.org> Tested-by: Luna Jernberg <droidbittin@gmail.com> Tested-by: Ronald Warsow <rwarsow@gmx.de> Tested-by: Justin M. Forbes <jforbes@fedoraproject.org> Tested-by: Ron Economos <re@w6rz.net> Tested-by: Miguel Ojeda <ojeda@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
24 lines
1.0 KiB
Plaintext
24 lines
1.0 KiB
Plaintext
What: /sys/devices/.../real_power_state
|
|
Date: January 2013
|
|
Contact: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
|
|
Description:
|
|
The /sys/devices/.../real_power_state attribute is only present
|
|
for device objects representing ACPI device nodes that provide
|
|
power management methods and use ACPI power resources for power
|
|
management.
|
|
|
|
If present, it contains a string representing the real ACPI
|
|
power state of the given device node as returned by the _PSC
|
|
control method or inferred from the configuration of power
|
|
resources. Its possible values, "D0", "D1", "D2", "D3hot", and
|
|
"D3cold", reflect the power state names defined by the ACPI
|
|
specification (ACPI 4 and above).
|
|
|
|
In some situations the value of this attribute may be different
|
|
from the value of the /sys/devices/.../power_state attribute for
|
|
the same device object. If that happens, some shared power
|
|
resources used by the device node are only ON because of some
|
|
other devices using them at the moment.
|
|
|
|
This attribute is read-only.
|