From: Chris Friesen <cfriesen@nortelnetworks.com>
To: Mike Bell <kernel@mikebell.org>
Cc: Greg KH <greg@kroah.com>, linux-kernel@vger.kernel.org
Subject: Re: devfs vs udev, thoughts from a devfs user
Date: Tue, 10 Feb 2004 12:52:51 -0500 [thread overview]
Message-ID: <40291A73.7050503@nortelnetworks.com> (raw)
In-Reply-To: <20040210171337.GK4421@tinyvaio.nome.ca>
Mike Bell wrote:
> No, you misunderstand. I'm not suggesting that sysfs /should/ export
> device files. I'm saying that sysfs exporting type/major/minor as files
> is not really that different from exporting full-fledged device files.
> Making udev a sort of ugly-hack devfsd.
What names would you use for your device files? This is the key
difference. With udev it gets a notification that says "I have a new
block device", it then looks it up, applies the rules, and creates a new
entry. The whole point is to move the naming scheme into userspace for
easier management.
You could have the kernel export a simple devfs with a hardcoded naming
scheme based on similar ideas as what is in sysfs (which would then make
sysfs and the daemon optional for tiny embedded setups), but the only
advantage over just exporting the information in sysfs is to save a few
bytes at the cost of yet another filesystem to maintain.
Chris
--
Chris Friesen | MailStop: 043/33/F10
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3500 Carling Avenue | fax: (613) 765-2986
Nepean, ON K2H 8E9 Canada | email: cfriesen@nortelnetworks.com
next prev parent reply other threads:[~2004-02-10 18:13 UTC|newest]
Thread overview: 59+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-02-10 11:34 devfs vs udev, thoughts from a devfs user Mike Bell
2004-02-10 13:20 ` Helge Hafting
2004-02-10 14:46 ` Mike Bell
2004-02-10 17:02 ` Mark Mielke
[not found] ` <20040210160011.GJ4421@tinyvaio.nome.ca>
2004-02-11 9:44 ` Helge Hafting
2004-02-11 20:05 ` Theodore Ts'o
2004-02-10 13:32 ` Ian Kent
2004-02-10 14:00 ` Mike Bell
2004-02-10 17:01 ` Greg KH
2004-02-10 17:13 ` Mike Bell
2004-02-10 17:25 ` Greg KH
2004-02-10 17:46 ` Mike Bell
2004-02-10 18:12 ` Greg KH
2004-02-10 18:29 ` Mike Bell
2004-02-10 22:19 ` Matthew Reppert
2004-02-11 1:10 ` Mike Bell
2004-02-11 10:05 ` Helge Hafting
2004-02-13 21:19 ` Greg KH
2004-02-14 8:51 ` Mike Bell
2004-02-14 9:13 ` Christian Borntraeger
2004-02-14 11:42 ` Helge Hafting
2004-02-14 16:54 ` Greg KH
2004-02-14 17:44 ` Alex Goddard
2004-02-15 8:16 ` Andrew Walrond
2004-02-19 9:47 ` Mike Bell
2004-02-19 19:43 ` Greg KH
2004-02-27 0:02 ` Mike Bell
2004-02-10 19:10 ` Shawn
2004-02-10 17:52 ` Chris Friesen [this message]
2004-02-10 19:24 ` Mike Bell
2004-02-10 19:46 ` Chris Friesen
2004-02-10 19:58 ` Tomasz Torcz
2004-02-10 20:11 ` Kevin P. Fleming
2004-02-10 20:39 ` Bill Rugolsky Jr.
2004-02-11 1:16 ` Greg KH
2004-02-11 1:41 ` Kevin P. Fleming
2004-02-11 9:36 ` Maneesh Soni
2004-02-11 7:50 ` viro
2004-02-11 12:33 ` Bill Rugolsky Jr.
2004-02-11 15:11 ` [PATCH] Fix /etc/mtab updating with mount --move [was Re: devfs vs udev, thoughts from a devfs user] Bill Rugolsky Jr.
2004-02-11 19:19 ` devfs vs udev, thoughts from a devfs user dleonard
2004-02-10 20:32 ` Diego Calleja García
2004-02-11 1:20 ` Mike Bell
2004-02-10 20:15 ` Timothy Miller
2004-02-10 22:24 ` Matthew Reppert
2004-02-11 1:35 ` Mike Bell
2004-02-10 20:44 ` Valdis.Kletnieks
2004-02-10 17:55 ` Mike Bell
2004-02-10 18:19 ` Greg KH
2004-02-10 18:43 ` Mike Bell
2004-02-10 20:11 ` Theodore Ts'o
2004-02-11 1:49 ` Mike Bell
2004-02-10 19:12 ` Mike Bell
2004-02-13 21:08 ` Greg KH
2004-02-10 18:35 ` Greg KH
2004-02-11 1:25 ` Ian Kent
-- strict thread matches above, loose matches on Subject: below --
2004-02-10 16:10 "Andrey Borzenkov"
[not found] <fa.i9mtr77.1pja9qf@ifi.uio.no>
[not found] ` <fa.de6p9mb.1ikipbl@ifi.uio.no>
2004-02-13 22:08 ` walt
2004-02-13 22:18 ` Greg KH
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