2003-05-27 16:26:07

by Michael Zhu

[permalink] [raw]
Subject: Different dev name in inode structure

Hi, I have a question about the inode structure. My
kernel version is 2.4.7-10, Red Hat Linux 7.2

In fs.h header file I found the prototype of inode
structure. In this inode structure there are the
following definitions.

kdev_t i_dev;
kdev_t i_rdev;
struct block_device * i_bdev;
struct char_device * i_cdev;

My question is what is the exact difference of i_dev
and i_rdev? Which one I should use?

Another question is what that i_bdev and i_cdev are
used for? They stand for what?

Thanks

______________________________________________________________________
Post your free ad now! http://personals.yahoo.ca