What is the difference between subsys_initcall() and module_init()?
 

Hi,

Now I 'm learning how to write linux device drivers.
And I found 'subsys_initcall()' is used in the place which module_init() should be.

What is the difference between subsys_initcall() and module_init()?
When should I use subsys_initcall() instead of module_init()?

Thank you very much.