/[gentoo]/xml/htdocs/doc/en/udev-guide.xml
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1<?xml version='1.0' encoding="UTF-8"?> 1<?xml version='1.0' encoding="UTF-8"?>
2<!DOCTYPE guide SYSTEM "/dtd/guide.dtd"> 2<!DOCTYPE guide SYSTEM "/dtd/guide.dtd">
3<!-- $Header: /var/cvsroot/gentoo/xml/htdocs/doc/en/udev-guide.xml,v 1.54 2011/09/11 08:43:18 swift Exp $ --> 3<!-- $Header: /var/cvsroot/gentoo/xml/htdocs/doc/en/udev-guide.xml,v 1.55 2011/12/26 15:22:40 swift Exp $ -->
4 4
5<guide> 5<guide>
6<title>Gentoo udev Guide</title> 6<title>Gentoo udev Guide</title>
7 7
8<author title="Author"> 8<author title="Author">
21 21
22<!-- The content of this document is licensed under the CC-BY-SA license --> 22<!-- The content of this document is licensed under the CC-BY-SA license -->
23<!-- See http://creativecommons.org/licenses/by-sa/2.5 --> 23<!-- See http://creativecommons.org/licenses/by-sa/2.5 -->
24<license/> 24<license/>
25 25
26<version>9</version> 26<version>10</version>
27<date>2011-09-11</date> 27<date>2011-12-26</date>
28 28
29<chapter> 29<chapter>
30<title>What is udev?</title> 30<title>What is udev?</title>
31<section> 31<section>
32<title>The /dev Directory</title> 32<title>The /dev Directory</title>
34 34
35<p> 35<p>
36When Linux-users talk about the hardware on their system in the vicinity of 36When Linux-users talk about the hardware on their system in the vicinity of
37people who believe Linux is some sort of virus or brand of coffee, the use of 37people who believe Linux is some sort of virus or brand of coffee, the use of
38"slash dev slash foo" will return a strange look for sure. But for the fortunate 38"slash dev slash foo" will return a strange look for sure. But for the fortunate
39user (and that includes you) using <path>/dev/hda1</path> is just a fast way of 39user (and that includes you) using <path>/dev/sda1</path> is just a fast way of
40explaining that we are talking about the primary master IDE, first partition. Or 40explaining that we are talking about the primary master SATA, first partition. Or
41aren't we? 41aren't we?
42</p> 42</p>
43 43
44<p> 44<p>
45We all know what a device file is. Some even know why device files have special 45We all know what a device file is. Some even know why device files have special
46numbers when we take a closer look at them when we issue <c>ls -l</c> in 46numbers when we take a closer look at them when we issue <c>ls -l</c> in
47<path>/dev</path>. But what we always take for granted is that the primary 47<path>/dev</path>. But what we always take for granted is that the primary
48master IDE disk is referred to as <path>/dev/hda</path>. You might not see it 48SATA disk is referred to as <path>/dev/sda</path>. You might not see it
49this way, but this is a flaw by design. 49this way, but this is a flaw by design.
50</p> 50</p>
51 51
52<p> 52<p>
53Think about hotpluggable devices like USB, IEEE1394, hot-swappable PCI, ... What 53Think about hotpluggable devices like USB, IEEE1394, hot-swappable PCI, ... What

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