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微软官方文档。 F0 s% b1 ^; {4 x4 `* B7 n- G
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.
' \3 c( T7 d. W F. p3 H' m$ t 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.3 f/ W! v" o9 C; o1 Q
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:
' U5 y/ O6 {- ?& U6 L. h6 E• Only WDF or WDM drivers are supported.' T, k) q# ^% E: ]# P8 G% o, A' v5 a
• 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！