Linux Kernel设备驱动模型之 核心SR管理

static LIST_HEAD(syscore_ops_list); static DEFINE_MUTEX(syscore_ops_lock);

/**  * register_syscore_ops - Register a set of system core operations.  * @ops: System core operations to register.  */ void register_syscore_ops(struct syscore_ops *ops) {  mutex_lock(&syscore_ops_lock);  list_add_tail(&ops->node, &syscore_ops_list);  mutex_unlock(&syscore_ops_lock); } EXPORT_SYMBOL_GPL(register_syscore_ops);

/**  * unregister_syscore_ops - Unregister a set of system core operations.  * @ops: System core operations to unregister.  */ void unregister_syscore_ops(struct syscore_ops *ops) {  mutex_lock(&syscore_ops_lock);  list_del(&ops->node);  mutex_unlock(&syscore_ops_lock); } EXPORT_SYMBOL_GPL(unregister_syscore_ops);