<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN"> <HTML ><HEAD ><TITLE >Bus-Independent Device Accesses</TITLE ><META NAME="GENERATOR" CONTENT="Modular DocBook HTML Stylesheet Version 1.7"><LINK REL="NEXT" TITLE="Introduction" HREF="c27.html"></HEAD ><BODY CLASS="BOOK" BGCOLOR="#FFFFFF" TEXT="#000000" LINK="#0000FF" VLINK="#840084" ALINK="#0000FF" ><DIV CLASS="BOOK" ><A NAME="DOINGIO" ></A ><DIV CLASS="TITLEPAGE" ><H1 CLASS="TITLE" ><A NAME="AEN2" ></A >Bus-Independent Device Accesses</H1 ><H3 CLASS="AUTHOR" ><A NAME="AEN5" ></A >Matthew Wilcox</H3 ><DIV CLASS="AFFILIATION" ><DIV CLASS="ADDRESS" ><P CLASS="ADDRESS" > <TT CLASS="EMAIL" ><<A HREF="mailto:matthew@wil.cx" >matthew@wil.cx</A >></TT ><br> </P ></DIV ></DIV ><H3 CLASS="AUTHOR" ><A NAME="AEN12" ></A >Alan Cox</H3 ><DIV CLASS="AFFILIATION" ><DIV CLASS="ADDRESS" ><P CLASS="ADDRESS" > <TT CLASS="EMAIL" ><<A HREF="mailto:alan@redhat.com" >alan@redhat.com</A >></TT ><br> </P ></DIV ></DIV ><P CLASS="COPYRIGHT" ><A HREF="ln21.html" >Copyright</A > © 2001 Matthew Wilcox</P ><HR></DIV ><DIV CLASS="TOC" ><DL ><DT ><B >Table of Contents</B ></DT ><DT ><A HREF="c27.html" >Introduction</A ></DT ><DT ><A HREF="c30.html" >Known Bugs And Assumptions</A ></DT ><DT ><A HREF="c33.html" >Memory Mapped IO</A ></DT ><DD ><DL ><DT ><A HREF="c33.html#AEN35" >Getting Access to the Device</A ></DT ><DT ><A HREF="x44.html" >Accessing the device</A ></DT ><DT ><A HREF="x65.html" >ISA legacy functions</A ></DT ></DL ></DD ><DT ><A HREF="c77.html" >Port Space Accesses</A ></DT ><DD ><DL ><DT ><A HREF="c77.html#AEN79" >Port Space Explained</A ></DT ><DT ><A HREF="x83.html" >Accessing Port Space</A ></DT ></DL ></DD ><DT ><A HREF="c96.html" >Public Functions Provided</A ></DT ><DD ><DL ><DT ><A HREF="r98.html" ><SPAN CLASS="phrase" ><SPAN CLASS="PHRASE" >virt_to_phys</SPAN ></SPAN ></A > -- map virtual addresses to physical </DT ><DT ><A HREF="r125.html" ><SPAN CLASS="phrase" ><SPAN CLASS="PHRASE" >phys_to_virt</SPAN ></SPAN ></A > -- map physical address to virtual </DT ><DT ><A HREF="r152.html" ><SPAN CLASS="phrase" ><SPAN CLASS="PHRASE" >ioremap</SPAN ></SPAN ></A > -- map bus memory into CPU space </DT ><DT ><A HREF="r185.html" ><SPAN CLASS="phrase" ><SPAN CLASS="PHRASE" >ioremap_nocache</SPAN ></SPAN ></A > -- map bus memory into CPU space </DT ><DT ><A HREF="r220.html" ><SPAN CLASS="phrase" ><SPAN CLASS="PHRASE" >check_signature</SPAN ></SPAN ></A > -- find BIOS signatures </DT ><DT ><A HREF="r260.html" ><SPAN CLASS="phrase" ><SPAN CLASS="PHRASE" >isa_check_signature</SPAN ></SPAN ></A > -- find BIOS signatures </DT ></DL ></DD ></DL ></DIV ></DIV ><DIV CLASS="NAVFOOTER" ><HR ALIGN="LEFT" WIDTH="100%"><TABLE SUMMARY="Footer navigation table" WIDTH="100%" BORDER="0" CELLPADDING="0" CELLSPACING="0" ><TR ><TD WIDTH="33%" ALIGN="left" VALIGN="top" > </TD ><TD WIDTH="34%" ALIGN="center" VALIGN="top" > </TD ><TD WIDTH="33%" ALIGN="right" VALIGN="top" ><A HREF="c27.html" ACCESSKEY="N" >Next >>></A ></TD ></TR ><TR ><TD WIDTH="33%" ALIGN="left" VALIGN="top" > </TD ><TD WIDTH="34%" ALIGN="center" VALIGN="top" > </TD ><TD WIDTH="33%" ALIGN="right" VALIGN="top" >Introduction</TD ></TR ></TABLE ></DIV ></BODY ></HTML >