<?xml version="1.0" ?> <!DOCTYPE article PUBLIC "-//KDE//DTD DocBook XML V4.2-Based Variant V1.1//EN" "dtd/kdex.dtd" [ <!ENTITY % addindex "IGNORE"> <!ENTITY % British-English "INCLUDE" > <!-- change language only here --> ]> <article lang="&language;"> <title ><acronym >DMA</acronym > Channel Information</title> <articleinfo> <authorgroup> <author >&Matthias.Hoelzer-Kluepfel;</author> <author >&Helge.Deller;</author> <author >&Duncan.Haldane;</author> <author >&Mike.McBride;</author> <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 > </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> </sect1> </article>