void cleanup_device(struct device *iface);
struct device *get_device(const char *name, bool create);
void add_device_user(struct device_user *dep, struct device *iface);
void cleanup_device(struct device *iface);
struct device *get_device(const char *name, bool create);
void add_device_user(struct device_user *dep, struct device *iface);
void set_device_present(struct device *dev, bool state);
int claim_device(struct device *dev);
void set_device_present(struct device *dev, bool state);
int claim_device(struct device *dev);