Subject: Re: Path Name to kdev_t
From: Gianni Tedesco <gianni@ecsc.co.uk>
To: chandrasekhar.nagaraj@patni.com
Cc: linux-kernel@vger.kernel.org
In-Reply-To: <000101c28be4$9ff1bf20$e9bba5cc@patni.com>
References: <000101c28be4$9ff1bf20$e9bba5cc@patni.com>
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Date: 14 Nov 2002 15:20:55 +0000
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On Thu, 2002-11-14 at 13:49, chandrasekhar.nagaraj wrote:
> In one of the part of my driver module , I have a path name to a device f=
ile
> (for eg:- /dev/hda1) .Now if I want to obtain the associated major number
> and minor number i.e. device ID(kdev_t) of this file what would be the
> procedure?

You need to lookup the inode from the path using namei() or something
then it's just a field in the inode.

Check out fs/namei.c and related headers for more details.

--=20
// Gianni Tedesco (gianni at ecsc dot co dot uk)
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