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<title>WMI ACPI Mapper</title>
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<o:LastAuthor>Alan Warwick</o:LastAuthor>
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<p class=MsoPlainText><span style='mso-fareast-font-family:"MS Mincho"'>This
directory contains files that allow an ACPI bios developer to add <o:p></o:p></span></p>
<p class=MsoPlainText><span style='mso-fareast-font-family:"MS Mincho"'>instrumentation
from within ASL code. ASL code can expose data blocks, methods<o:p></o:p></span></p>
<p class=MsoPlainText><span style='mso-fareast-font-family:"MS Mincho"'>and
events via WMI by leveraging the WMIACPI.SYS driver. More information<o:p></o:p></span></p>
<p class=MsoPlainText><span style='mso-fareast-font-family:"MS Mincho"'>about the
mechanics of writing ASL to expose instrumentation information is<o:p></o:p></span></p>
<p class=MsoPlainText><span style='mso-fareast-font-family:"MS Mincho"'>available
in wmi-acpi.doc or on <o:p></o:p></span></p>
<p class=MsoPlainText><span style='mso-fareast-font-family:"MS Mincho"'>http://www.microsoft.com/HWDev/MANAGEABILITY/wmi-acpi.htm.<o:p></o:p></span></p>
<p class=MsoPlainText><span style='mso-fareast-font-family:"MS Mincho"'><![if !supportEmptyParas]> <![endif]><o:p></o:p></span></p>
<p class=MsoPlainText><span style='mso-fareast-font-family:"MS Mincho"'><![if !supportEmptyParas]> <![endif]><o:p></o:p></span></p>
<p class=MsoPlainText><span style='mso-fareast-font-family:"MS Mincho"'>Device.ASL
- ASL code that can be included in the acpi bios that exposes <o:p></o:p></span></p>
<p class=MsoPlainText><span style='mso-fareast-font-family:"MS Mincho"'><span
style="mso-spacerun: yes"> </span>a set of packages, strings, data,
methods and events.<o:p></o:p></span></p>
<p class=MsoPlainText><span style='mso-fareast-font-family:"MS Mincho"'><![if !supportEmptyParas]> <![endif]><o:p></o:p></span></p>
<p class=MsoPlainText><span style='mso-fareast-font-family:"MS Mincho"'>acpimof.mof
- Managed Object Format file that contains a description<span
style="mso-spacerun: yes"> </span>of the <o:p></o:p></span></p>
<p class=MsoPlainText><span style='mso-fareast-font-family:"MS Mincho"'><span
style="mso-spacerun: yes"> </span>data blocks, methods and events
exposed. This description is<o:p></o:p></span></p>
<p class=MsoPlainText><span style='mso-fareast-font-family:"MS Mincho"'><span
style="mso-spacerun: yes"> </span>required so that WMI is able to
access the data blocks, methods<o:p></o:p></span></p>
<p class=MsoPlainText><span style='mso-fareast-font-family:"MS Mincho"'><span
style="mso-spacerun: yes"> </span>and events.<o:p></o:p></span></p>
<p class=MsoPlainText><span style='mso-fareast-font-family:"MS Mincho"'><![if !supportEmptyParas]> <![endif]><o:p></o:p></span></p>
<p class=MsoPlainText><span style='mso-fareast-font-family:"MS Mincho"'>acpimof.rc,
acpimof.def - FIles required to build acpimof.dll, a resource only<o:p></o:p></span></p>
<p class=MsoPlainText><span style='mso-fareast-font-family:"MS Mincho"'><span
style="mso-spacerun: yes"> </span>dll.<o:p></o:p></span></p>
<p class=MsoPlainText><span style='mso-fareast-font-family:"MS Mincho"'><![if !supportEmptyParas]> <![endif]><o:p></o:p></span></p>
<p class=MsoPlainText><span style='mso-fareast-font-family:"MS Mincho"'>makefile,
sources, makefile.inc - build glue<o:p></o:p></span></p>
<p class=MsoPlainText><span style='mso-fareast-font-family:"MS Mincho"'><![if !supportEmptyParas]> <![endif]><o:p></o:p></span></p>
<p class=MsoPlainText><span style='mso-fareast-font-family:"MS Mincho"'>wmi-acpi.doc
- White paper describing how to add instrumentation to ASL code.<o:p></o:p></span></p>
<p class=MsoPlainText><span style='mso-fareast-font-family:"MS Mincho"'><![if !supportEmptyParas]> <![endif]><o:p></o:p></span></p>
<p class=MsoPlainText><span style='mso-fareast-font-family:"MS Mincho"'>acpimof.vbs
- Built at the same time as acpimof.dll, this file contains a<o:p></o:p></span></p>
<p class=MsoPlainText><span style='mso-fareast-font-family:"MS Mincho"'><span
style="mso-spacerun: yes"> </span>VBScript applet that will query
all classes specified in the<o:p></o:p></span></p>
<p class=MsoPlainText><span style='mso-fareast-font-family:"MS Mincho"'><span
style="mso-spacerun: yes"> </span>acpimof.mof file.<o:p></o:p></span></p>
<p class=MsoPlainText><span style='mso-fareast-font-family:"MS Mincho"'><![if !supportEmptyParas]> <![endif]><o:p></o:p></span></p>
<p class=MsoPlainText><span style='mso-fareast-font-family:"MS Mincho"'><![if !supportEmptyParas]> <![endif]><o:p></o:p></span></p>
<p class=MsoPlainText><span style='mso-fareast-font-family:"MS Mincho"'>To add
the sample code to your acpi bios and access via WMI:<o:p></o:p></span></p>
<p class=MsoPlainText><span style='mso-fareast-font-family:"MS Mincho"'><![if !supportEmptyParas]> <![endif]><o:p></o:p></span></p>
<p class=MsoPlainText><span style='mso-fareast-font-family:"MS Mincho"'>1.
Include the contents of device.asl to your asl source and rebuild the<o:p></o:p></span></p>
<p class=MsoPlainText><span style='mso-fareast-font-family:"MS Mincho"'><span
style="mso-spacerun: yes"> </span>DSDT. Update the OS with the new dsdt via
the registry or reflashing.<o:p></o:p></span></p>
<p class=MsoPlainText><span style='mso-fareast-font-family:"MS Mincho"'><![if !supportEmptyParas]> <![endif]><o:p></o:p></span></p>
<p class=MsoPlainText><span style='mso-fareast-font-family:"MS Mincho"'>2.
Build acpimof.dll in this directory. acpimof.dll is a resource only dll<o:p></o:p></span></p>
<p class=MsoPlainText><span style='mso-fareast-font-family:"MS Mincho"'><span
style="mso-spacerun: yes"> </span>that contains the compiled mof in a form
that WMI can import into its<o:p></o:p></span></p>
<p class=MsoPlainText><span style='mso-fareast-font-family:"MS Mincho"'><span
style="mso-spacerun: yes"> </span>schema.<o:p></o:p></span></p>
<p class=MsoPlainText><span style='mso-fareast-font-family:"MS Mincho"'><![if !supportEmptyParas]> <![endif]><o:p></o:p></span></p>
<p class=MsoPlainText><span style='mso-fareast-font-family:"MS Mincho"'>3. Copy
acpimof.dll to %windir%\system32 and add a value named "MofImagePath"<o:p></o:p></span></p>
<p class=MsoPlainText><span style='mso-fareast-font-family:"MS Mincho"'><span
style="mso-spacerun: yes"> </span>under the
HKEY_LOCAL_MACHINE\CurrentControlSet\Services\WmiAcpi key. The<o:p></o:p></span></p>
<p class=MsoPlainText><span style='mso-fareast-font-family:"MS Mincho"'><span
style="mso-spacerun: yes"> </span>contents of the value should be a path to
the acpimof.dll file.<o:p></o:p></span></p>
<p class=MsoPlainText><span style='mso-fareast-font-family:"MS Mincho"'><![if !supportEmptyParas]> <![endif]><o:p></o:p></span></p>
<p class=MsoPlainText><span style='mso-fareast-font-family:"MS Mincho"'>4.
Reboot. When PNP recognizes the new device with a pnpid of pnp0c14<o:p></o:p></span></p>
<p class=MsoPlainText><span style='mso-fareast-font-family:"MS Mincho"'><span
style="mso-spacerun: yes"> </span>it will install wmiacpi.sys automatically
and make the mof resource<o:p></o:p></span></p>
<p class=MsoPlainText><span style='mso-fareast-font-family:"MS Mincho"'><span
style="mso-spacerun: yes"> </span>in acpimof.dll available to the WMI schema.<o:p></o:p></span></p>
<p class=MsoPlainText><span style='mso-fareast-font-family:"MS Mincho"'><![if !supportEmptyParas]> <![endif]><o:p></o:p></span></p>
<p class=MsoPlainText><span style='mso-fareast-font-family:"MS Mincho"'>5.
Execute the acpimof.vbs test by entering acpimof.vbs at the command line<o:p></o:p></span></p>
<p class=MsoPlainText><span style='mso-fareast-font-family:"MS Mincho"'><span
style="mso-spacerun: yes"> </span>and reviewing the acpitest.log to insure
that all data returned is correct.<o:p></o:p></span></p>
<p class=MsoPlainText><span style='mso-fareast-font-family:"MS Mincho"'><![if !supportEmptyParas]> <![endif]><o:p></o:p></span></p>
<p class=MsoPlainText><span style='mso-fareast-font-family:"MS Mincho"'><![if !supportEmptyParas]> <![endif]><o:p></o:p></span></p>
<p class=MsoPlainText><span style='mso-fareast-font-family:"MS Mincho"'>Note
that no INF file is needed since Windows supplies an INF for the ACPI mapper
device as part of Windows<o:p></o:p></span></p>
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