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48 lines
2.2 KiB
48 lines
2.2 KiB
<?xml version="1.0" ?>
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<!DOCTYPE article PUBLIC "-//KDE//DTD DocBook XML V4.2-Based Variant V1.1//EN"
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"dtd/kdex.dtd" [
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<!ENTITY % addindex "IGNORE">
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<!ENTITY % British-English "INCLUDE"> <!-- change language only here -->
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]>
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<article lang="&language;">
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<title><acronym>DMA</acronym> Channel Information</title>
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<articleinfo>
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<authorgroup>
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<author>&Matthias.Hoelzer-Kluepfel;</author>
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<author>&Helge.Deller;</author>
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<author>&Duncan.Haldane;</author>
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<author>&Mike.McBride;</author>
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<othercredit role="translator"><firstname>Malcolm</firstname><surname>Hunter</surname><affiliation><address><email>malcolm.hunter@gmx.co.uk</email></address></affiliation><contrib>Conversion to British English</contrib></othercredit>
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</authorgroup>
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<date>2002-02-12</date>
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<releaseinfo>3.00.00</releaseinfo>
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<keywordset>
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<keyword>KDE</keyword>
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<keyword>KControl</keyword>
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<keyword>DMA</keyword>
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<keyword>system information</keyword>
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</keywordset>
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</articleinfo>
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<sect1>
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<title><acronym>DMA</acronym> Channel Information</title>
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<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>
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<note> <para>The exact information displayed is system-dependent. On some systems, <acronym>DMA</acronym> Channel information cannot be displayed yet. </para> </note>
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<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>
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<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>
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<para>Unused <acronym>DMA</acronym> channels are not listed. </para>
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<para>The user cannot modify any settings on this page. </para>
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</sect1>
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</article>
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