diff options
Diffstat (limited to 'doc/kcontrol/interrupts/index.docbook')
-rw-r--r-- | doc/kcontrol/interrupts/index.docbook | 70 |
1 files changed, 70 insertions, 0 deletions
diff --git a/doc/kcontrol/interrupts/index.docbook b/doc/kcontrol/interrupts/index.docbook new file mode 100644 index 000000000..b29611202 --- /dev/null +++ b/doc/kcontrol/interrupts/index.docbook @@ -0,0 +1,70 @@ +<?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>Interrupt Request (<abbrev>IRQ</abbrev>) Lines</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>IRQ</keyword> +<keyword>interrupts</keyword> +<keyword>system information</keyword> +</keywordset> +</articleinfo> + +<sect1> +<title>Interrupt Request (<abbrev>IRQ</abbrev>) Lines in Use</title> + +<para>This page displays information about the Interrupt Request +Lines in use, and the devices that use them.</para> + +<para>An <acronym>IRQ</acronym> is a hardware line used in a +<acronym>PC</acronym> by (<acronym>ISA</acronym> bus) devices like +keyboards, modems, sound cards, &etc;, to send interrupt signals to the +processor to tell it that the device is ready to send or accept data. +Unfortunately, there are only sixteen <acronym>IRQ</acronym>'s (0-15) +available in the i386 (<acronym>PC</acronym>) architecture for sharing among +the various <acronym>ISA</acronym> devices.</para> + +<para>Many hardware problems are the result of <acronym>IRQ</acronym> +conflicts, when two devices try to use the same <acronym>IRQ</acronym>, or +software is misconfigured to use a different <acronym>IRQ</acronym> from the +one a device is actually configured for.</para> + +<note><para>The exact information displayed is system-dependent. On some +systems, <acronym>IRQ</acronym> information cannot be displayed + yet.</para></note> + +<para>On &Linux;, this information is read from +<filename class="directory">/proc/interrupts</filename>, which is only +available if the <filename class="directory">/proc</filename> +pseudo-filesystem is compiled into the kernel.</para> + +<para>The first column, is the <acronym>IRQ</acronym> number. The second +column, is the number of interrupts that have been received since the last +reboot. The third column shows the type of interrupt. The fourth, +identifies the device assigned to that interrupt.</para> + +<para>The user cannot modify any settings on this page.</para> + +</sect1> + +</article> + |