On Thu, Sep 08, 2005 at 06:02:53PM +0900, NAHieu wrote:
> Hello,
>
> In linux we have many macro to initialize the kernel module, like below:
>
> #define core_initcall(fn) __define_initcall("1",fn)
> #define postcore_initcall(fn) __define_initcall("2",fn)
> #define arch_initcall(fn) __define_initcall("3",fn)
> #define subsys_initcall(fn) __define_initcall("4",fn)
> #define fs_initcall(fn) __define_initcall("5",fn)
> #define device_initcall(fn) __define_initcall("6",fn)
> #define late_initcall(fn) __define_initcall("7",fn)
>
>
> The problem is I am not sure which initcall should be used in which
> case.
It all depends on your code. What are you trying to do? Can it be
built as a module? If so, you don't need to worry about any of the
above.
> I look at kernel code, some places they use postcore_initcall(),
> some places they use subsys_initcall(), but what is the correct
> semantics of each?
Again, it depends on the needs of the calling code.
Have a pointer to your code somewhere?
thanks,
greg k-h
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