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微软官方文档。) n$ Z" Z' n. [5 d# Q6 D
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.% k) L# } X( a* s1 M! k' d
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.0 h9 d& f: i0 u( c8 A8 v+ H
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:0 X8 r# J$ Q5 C* ~; x& ?# a
• Only WDF or WDM drivers are supported.& R$ E( s& W) ?$ j" c0 f8 Q
• 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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显身卡
发表于 2011-1-30 13:54:51
多谢楼主的资料too！