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SubjectRe: Writing modules for 2.5
On Tue, Apr 15, 2003 at 01:57:58PM +0100, Russell King wrote:
> On Tue, Apr 15, 2003 at 02:39:14PM +0200, M?ns Rullg?rd wrote:
> > 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.

Unless the open/close functions are doing funky things (like the
watchdog drivers do).

Dave

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