<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN"> <!-- saved from url=(0039)file://\\davis\scratch\sdeng\readme.htm --> <HTML><HEAD> <TITLE>3Dlabs Permedia2 Video Miniport Driver</TITLE> <META content="text/html; charset=windows-1252" http-equiv=Content-Type> <META content="MSHTML 5.00.2314.1000" name=GENERATOR></HEAD> <BODY link=#0000ff><FONT face=Verdana size=5> <H2>3Dlabs Permedia2 Video Miniport Driver</H2></FONT><FONT face=Verdana size=2> <H3>SUMMARY</H3></FONT><FONT face=Verdana size=2> <P>This is a video miniport driver for graphics adapters based on the 3Dlabs Permedia 2 chipset. It supports Plug and Play and Power Management. Note that this miniport driver forms a matched pair with the 3Dlabs display driver sample in \Ntddk\Src\Video\Displays\3dlabs. The miniport driver is responsible for nonrendering tasks such as adapter initialization, register mapping, and other resource allocation, whereas the display driver handles actual rendering tasks. <p> The sample runs on the x86 platform and builds properly with Microsoft® Visual C® 6.0. It is 64-bit compliant. <P> The binary build from this sample is cross-platform compatible: it runs on Microsoft� Windows� 2000 and Windows NT� 4.0. <p> <H3>BUILDING THE SAMPLE</H3></FONT><FONT face=Verdana size=2> <P>Type <B>build -zc</B>. A successful build produces the video miniport driver Perm2.sys. <P> <H3>CODE TOUR</H3> <H4>File Manifest</H4></FONT><U><PRE>File</U> <U>Description </U> Interupt.c Interrupt handling functions Interupt.h Data structures for Interrupt.c Makefile Driver makefile P2rd.h Definitions and macros for P2RD DAC Pciprobe.c PCI-related functions Perm2tag.h Definition Permedia 2 registers Perm2ver.h Version information Permdata.c Initialization data and functions for supported display modes Permedia.c Contains most of the major driver functions, such as Permedia2FindAdapter and Permedia2StartIO Permedia.h Definition for Permedia.c Permedia.rc Version/legal related definitions Permmem.c ROM-related functions Power.c Power management functions Sources The generic file for building the code sample Tvp4020.h Definitions and macros for TVP4020 DAC Video.c Video initialization functions <P></P> </FONT> <TABLE border=0 cellSpacing=0 width=624><TBODY><TR><TD bgColor=#00ffff height=2 vAlign=center><P></P></TD></TR></TBODY></TABLE> <FONT face="MS Sans Serif" size=1><P>� 1999 Microsoft Corporation</FONT><FONT face=Verdana size=2> </P></FONT> </PRE></BODY></HTML>