From: Greg KH <greg@kroah.com>
To: Scott Robert Ladd <coyote@coyotegulch.com>
Cc: Linux Kernel Mailing List <linux-kernel@vger.kernel.org>
Subject: Re: /dev Questions
Date: Thu, 1 May 2003 09:01:37 -0700 [thread overview]
Message-ID: <20030501160137.GA30141@kroah.com> (raw)
In-Reply-To: <3EB1358C.1020808@coyotegulch.com>
On Thu, May 01, 2003 at 10:56:12AM -0400, Scott Robert Ladd wrote:
> Why does /dev include devices that do not exist?
/dev is only a bunch of device nodes that knows nothing about any
devices physically present in the system.
devfs creates a dynamic filesystem that is managed by the kernel that
only shows the devices present in the kernel at that point in time.
udev attempts to manage a /dev partition from userspace by watching all
of the hotplug events coming from the kernel that announce device
removal and additions.
Hope this helps,
greg k-h
prev parent reply other threads:[~2003-05-01 15:47 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2003-05-01 14:56 /dev Questions Scott Robert Ladd
2003-05-01 15:08 ` Michael Buesch
2003-05-02 14:58 ` Scott Robert Ladd
2003-05-01 16:01 ` Greg KH [this message]
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20030501160137.GA30141@kroah.com \
--to=greg@kroah.com \
--cc=coyote@coyotegulch.com \
--cc=linux-kernel@vger.kernel.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.