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Date: Thu, 17 Jul 2003 17:01:01 +0100
From: Christoph Hellwig <hch@infradead.org>
To: Oliver Neukum <oliver@neukum.org>
Cc: linux-kernel@vger.kernel.org
Subject: Re: usability of device nodes with devfs
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	Oliver Neukum <oliver@neukum.org>, linux-kernel@vger.kernel.org
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In-Reply-To: <200307161642.05966.oliver@neukum.org>; from oliver@neukum.org on Wed, Jul 16, 2003 at 04:42:05PM +0200
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On Wed, Jul 16, 2003 at 04:42:05PM +0200, Oliver Neukum wrote:
> Hi,
> 
> is it a requirement that nodes created with devfs can be opened
> successfully from the moment the device is registered?

For 2.4 which has a direct connection from devfs entries to file operations
this is indeed a requirement.  For 2.5 devfs is merely a way to perform
mknod from kernelspace so there is no such requirement.  Just still have
to be setup for I/O when calling register_chardev/add_disk, though.