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<!DOCTYPE article PUBLIC "-//KDE//DTD DocBook XML V4.1.2-Based Variant V1.1//EN"
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<!ENTITY % addindex "IGNORE">
<!ENTITY % British-English "INCLUDE" 
> <!-- change language only here -->
]>

<article lang="&language;">
<title
><acronym
>DMA</acronym
> Channel Information</title>
<articleinfo>

<authorgroup>
<author
> <firstname
>Matthias</firstname
> <surname
>H&ouml;lzer</surname
> </author>

<author
> <firstname
>Helge</firstname
> <surname
>Deller</surname
> </author>

<author
> <firstname
>Duncan</firstname
> <surname
>Haldane</surname
> </author>

<author
> <firstname
>Mike</firstname
> <surname
>McBride</surname
> </author>
<othercredit role="translator"
><firstname
>Malcolm</firstname
><surname
>Hunter</surname
><affiliation
><address
><email
>malcolm.hunter@gmx.co.uk</email
></address
></affiliation
><contrib
>KDE British Conversion</contrib
></othercredit>
</authorgroup>

<date
>2002-02-12</date>
<releaseinfo
>3.00.00</releaseinfo>

<keywordset>
<keyword
>KDE</keyword>
<keyword
>KControl</keyword>
<keyword
>DMA</keyword>
<keyword
>system information</keyword>
</keywordset>
</articleinfo>

<sect1>
<title
><acronym
>DMA</acronym
> Channel Information</title>

<para
> This page displays information about the <acronym
>DMA</acronym
> (Direct Memory Access) Channels. A <acronym
>DMA</acronym
> channel is a direct connection that allows devices to transfer data to and from memory without going through the processor. Typically, i386-architecture systems (<acronym
>PC</acronym
>'s) have eight <acronym
>DMA</acronym
> channels (0-7). </para>

<note
> <para
> The exact information displayed is system-dependent. On some systems, <acronym
>DMA</acronym
> Channel information cannot be displayed yet. </para
> </note>

<para
> On &Linux;, this information is read from <filename class="devicefile"
>/proc/dma</filename
>, which is only available if the <filename class="directory"
>/proc</filename
> pseudo-filesystem is compiled into the kernel. </para>

<para
> A list of all currently-registered (<acronym
>ISA</acronym
> bus) <acronym
>DMA</acronym
> channels that are in use is shown. The first column shows the <acronym
>DMA</acronym
> channel, and the second column shows the device which uses that channel. </para>

<para
> Unused <acronym
>DMA</acronym
> channels are not listed. </para>

<para
> The user cannot modify any settings on this page. </para>

<sect2 id="dma-author">
<title
>Section Authors</title>
<para
> Matthias H&ouml;lzer <email
>hoelzer@kde.org</email
>, Helge Deller <email
>helge.deller@ruhruni-bochum.de</email
>, Duncan Haldane <email
>duncan@kde.org</email
>,and Michael McBride <email
>mpmcbride7@yahoo.com</email
></para>
<para
>KDE British Conversion Malcolm Hunter <email
>malcolm.hunter@gmx.co.uk</email
></para>
</sect2>
</sect1>
</article>
