ACPI Driver Interface in Windows Vista -- April 26, 2007
微软官方文档。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.
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.
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:
• Only WDF or WDM drivers are supported.
• 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. :lol多谢楼主的资料too！ 我的第一个ACPI 驱动 就是根据这个SPEC 做出来的！！
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