Re: Writing modules for 2.5

Måns Rullgård (mru@users.sourceforge.net)
15 Apr 2003 17:42:07 +0200


Russell King <rmk@arm.linux.org.uk> writes:

> > My situation is like this: I am converting a char device driver to
> > work with linux 2.5. In the open and close functions there are
> > MOD_INC/DEC_USECOUNT calls. The question is what they should be
> > replaced with. Will it be handled correctly without them?
>
> If it's a character device driver using the struct file_operations,
> set the owner field as Alan mentioned, and remove the
> MOD_{INC,DEC}_USE_COUNT macros from the open/close methods. This
> allows chrdev_open() (in fs/char_dev.c) to increment your module use
> count automatically.

Does this work in 2.4 also, or is the owner field used for something
else there?

-- 
Måns Rullgård
mru@users.sf.net
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