#ifndef _SOUNDMODULE_H #define _SOUNDMODULE_H #include extern struct notifier_block *sound_locker; extern void sound_notifier_chain_register(struct notifier_block *); #ifdef MODULE #define SOUND_LOCK sound_notifier_chain_register(&sound_notifier); #define SOUND_LOCK_END notifier_chain_unregister(&sound_locker, &sound_notifier) static int my_notifier_call(struct notifier_block *b, unsigned long foo, void *bar) { if(foo) MOD_INC_USE_COUNT; else MOD_DEC_USE_COUNT; return NOTIFY_DONE; } static struct notifier_block sound_notifier= { my_notifier_call, (void *)0, 0 }; #endif #endif