Re: error of module_register_chrdev()

[Erik Mouw <J.A.K.Mouw@ITS.TUDelft.NL>]

On Fri, Oct 05, 2001 at 06:19:03PM -0400, Hong Hsu wrote:
> I got "implicit declaration of function `module_register_chrdev'" during 
> the compilation with kernel 2.4.2 on Pentium 4.   I wonder the 
> module_register_chrdev() should be replaced by inter_module_register()?    

There is no such thing as module_register_chrdev(). You probably want
register_chrdev().

> Secondly, the device_read and device_write in my following code warning me:
>                    initialization from incompatible pointer type
> 
> It seems to me that file_operations defined in linux/include/fs.h is 
> changed.  Could someone tell how it is changed and how can I trace the 
> change?

Use named initialisers so you are no longer dependent on the structure
layout:

struct file_operations my_fops = {
	read: my_read,
	write: my_write,
	open: my_open,
	release: my_release
};


Erik

-- 
J.A.K. (Erik) Mouw, Information and Communication Theory Group, Department
of Electrical Engineering, Faculty of Information Technology and Systems,
Delft University of Technology, PO BOX 5031,  2600 GA Delft, The Netherlands
Phone: +31-15-2783635  Fax: +31-15-2781843  Email: J.A.K.Mouw@its.tudelft.nl
WWW: http://www-ict.its.tudelft.nl/~erik/
-
Kernelnewbies: Help each other learn about the Linux kernel.
Archive:       http://mail.nl.linux.org/kernelnewbies/
IRC Channel:   irc.openprojects.net / #kernelnewbies
Web Page:      http://www.kernelnewbies.org/