does a device driver must have module_init()
 

Hi,

Does a device driver must have a module_init() system call? I am looking at a working driver and don't see module_init() inside (which seems to be strange to a newbie like me).

Thanks,
Wei

You don't need module_init if it can't be built as a loadable module.

@smallpond,


Thanks for the reply. Did you mean that if I compile a driver as part of the kernel (as oppose to as a loadable module), the module_init() is not needed?

Wei Xu

An init entry point may still be needed for drivers which need initialization at boot time. I was suggesting a reason why the existing driver might not have module_init.