<HTML> <HEAD> <META HTTP-EQUIV="Content-Type" CONTENT="text/html; charset=windows- 1252"> <META NAME="Generator" CONTENT="Microsoft FrontPage 5.0"> <TITLE>SMBBATT</TITLE> </HEAD> <BODY LINK="#0000ff"> <FONT FACE="Verdana" SIZE=5><H2>SMBBATT</H2> </FONT><FONT FACE="Verdana" SIZE=2> <P><span style="color:#FF0000;font-size:10pt;font-family:Arial">[This is preliminary documentation and subject to change.]</span></P> <H3>SUMMARY</H3></FONT><FONT FACE="Verdana" SIZE=2><P> This kernel mode driver is the system supplied SMBus Smart Battery Subsystem Miniport driver. This driver serves as an example of both a battery miniclass driver, and as an example of a driver to access a SMBus device. <H3>BUILDING THE SAMPLE</H3></FONT><FONT FACE="Verdana" SIZE=2><P> To build the driver, type <B>build</B> in the \\Ntddk\Src\Wdm\Acpi\Smbbatt directory. A successful build produces Smbbatt.sys. The necessary Inf file is battery.inf and is located in the %WINDIR%\inf directory.<H3>CODE TOUR</H3> <H4>File Manifest</H4> </FONT><U><PRE>File		Description </U> Smbbattp.h Header file for smbbatt.c Pnppower.c	Plug and play and power management IRP dispatch routines Smbbatt.c Main module for driver entry, IOCTL handler, etc. Smbmisc.c SMBus handler functions Smbwmi.c WMI functions Smbbatt.rc Resource file for smbbatt.sys driver Makefile	Indirects to the real makefile Sources	 Dependency information for compiling Smbbatt.htm	The documentation for this sample (this file)<PRE> <P ALIGN="CENTER"><A HREF="#top"><FONT FACE="Verdana" SIZE=2>Top of page</FONT></A><FONT FACE="Verdana" SIZE=2> </P></FONT> <TABLE CELLSPACING=0 BORDER=0 WIDTH=624> <TR><TD VALIGN="MIDDLE" BGCOLOR="#00ffff" HEIGHT=2> <P></TD> </TR> </TABLE> <FONT FACE="MS Sans Serif" SIZE=1><P>© 2001 Microsoft Corporation</FONT><FONT FACE="Verdana" SIZE=2> </P></FONT></BODY> </HTML>