Advanced Configuration and Power Interface Specification

Advanced Configuration and Power Interface Specification
_S1W must return the same integer each time it is evaluated. This value allows OSPM to choose a
deeper S-state to D-state mapping than specified by _S1D. This value must always be greater than or
equal to _S1D, if _S1D is present.
7.3.22 _S2W (S2 Device Wake State)
This object evaluates to an integer that conveys to OSPM the deepest D-state supported by this
device in the S2 system sleeping state that can wake the system.
Arguments:
None
Return Value:
An Integer containing the deepest D-state that supports wake in state S2. If OSPM has not indicated
that it supports _PR3 through the OSPM Platform-Wide Capabilities (see Section 6.2.11.2), then the
value "3" corresponds to D3. If it has indicated _PR3 support, the value "3" represents D3hot and
the value "4" represents D3cold.
_S2W must return the same integer each time it is evaluated. This value allows OSPM to choose a
deeper S-state to D-state mapping than specified by _S2D. This value must always be greater than or
equal to _S2D, if _S2D is present.
7.3.23 _S3W (S3 Device Wake State)
This object evaluates to an integer that conveys to OSPM the deepest D-state supported by this
device in the S3 system sleeping state that can wake the system.
Arguments:
None
Return Value:
An Integer containing the deepest D-state that supports wake in state S3. If OSPM has not indicated
that it supports _PR3 through the OSPM Platform-Wide Capabilities (see Section 6.2.11.2), then the
value "3" corresponds to D3. If it has indicated _PR3 support, the value "3" represents D3hot and
the value "4" represents D3cold.
_S3W must return the same integer each time it is evaluated. This value allows OSPM to choose a
deeper S-state to D-state mapping than specified by _S3D. This value must always be greater than or
equal to _S3D, if _S3D is present.
7.3.24 _S4W (S4 Device Wake State)
This object evaluates to an integer that conveys to OSPM the deepest D-state supported by this
device in the S4 system sleeping state that can wake the system.
Arguments:
None
406 April, 2015 Version 6.0