You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
65 lines
2.0 KiB
65 lines
2.0 KiB
<?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 % 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>
|
|
<!-- TRANS:ROLES_OF_TRANSLATORS -->
|
|
</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>
|