<HTML> <HEAD> <META HTTP-EQUIV="Content-Type" CONTENT="text/html; charset=windows- 1252"> <META NAME="Generator" CONTENT="Microsoft Word 97"> <TITLE>Flpydisk</TITLE> </HEAD> <BODY LINK="#0000ff"> <FONT FACE="Verdana" SIZE=5><H2>Flpydisk</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> The flpydisk sample is a floppy driver that resides in the directory \\Ntddk\Src\Storage\Fdc\Flpydsk. It is similar to a class driver in that it sits a level above the floppy disk controller in the driver stack, and brokers communication between the application level and the low-level driver. The floppy driver takes commands from the application and then calls routines in the controller which will in turn perform the actual interaction with the device. The sample compiles in 64-bit, but has not been tested in this environment. It is compatible with x86 and Alpha platforms.<P> Note that the floppy driver could be replaced by a floppy tape driver and still interact with the lower level Fdc. The sample works on NEC PD756 and Intel 82077 drives. <H3>BUILDING THE SAMPLE</H3></FONT><FONT FACE="Verdana" SIZE=2><P> Type <B>build</B> in the \\Ntddk\Src\Storage\Fdc\Flpydsk directory. A successful build produces Flpydsk.sys. <H3>CODE TOUR</H3> <H4>File Manifest</H4> </FONT><U><PRE>File		Description </U> Flo_data.h	Header file for floppy disk driver Floppy.c	Floppy diskette driver Floppy.rc	Resource file Sources	 Sources for build Flpydisk.inf	INF file floppy driver <P> </FONT><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>© 1999 Microsoft Corporation</FONT><FONT FACE="Verdana" SIZE=2> </P></FONT></BODY> </HTML>