lkml.org 
[lkml]   [2002]   [Nov]   [14]   [last100]   RSS Feed
Views: [more markup]  [less markup]  [headers]  [forward] 
 
Messages in this thread
/
SubjectRe: Path Name to kdev_t
FromGianni Tedesco <>
Date14 Nov 2002 15:20:55 +0000
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 file
> (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.

-- 
// Gianni Tedesco (gianni at ecsc dot co dot uk)
lynx --source www.scaramanga.co.uk/gianni-at-ecsc.asc | gpg --import
8646BE7D: 6D9F 2287 870E A2C9 8F60 3A3C 91B5 7669 8646 BE7D[unhandled content-type:application/pgp-signature]
\
 
 \ /
  Last update: 2005-03-22 13:31    [from the cache]
©2003-2008