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微软官方文档。
% v0 S a2 q( } F2 r Kernel-mode device drivers are able to evaluate ACPI control methods via I/O control codes (IOCTLs). Typically, a driver evaluates ACPI control methods to initiate or configure platform-specific functionality.
5 h+ C9 v+ m- c" m9 I8 b# H1 ]! h- F An ACPI control method is a definition of how to interrogate or adjust system hardware. Control methods are written in the ACPI Machine Language (AML) and are interpreted by the ACPI driver in Microsoft® Windows®. These objects are loaded from the system definition in firmware into the ACPI namespace./ v! i2 I9 L6 S# y6 ?' e( h- x
Drivers can evaluate ACPI control methods within the namespace of the device object on which they are loaded. This also includes control methods in the namespace of child objects. A driver must meet the following requirements when evaluating ACPI control methods:
& O! i/ ~: ^. L6 x& N1 Q4 z( ~• Only WDF or WDM drivers are supported.! Q. {5 g7 V4 N) r1 M3 [5 v% j' c
• Drivers may evaluate control methods only within the namespace of the device object on which they are loaded. This includes the namespace of child device objects. |
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狗仔卡
发表于 2007-11-16 19:19:40
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发表于 2011-1-30 13:54:51
多谢楼主的资料too！