void device_handler_boot(struct device_handler *handler,
struct boot_command *cmd);
void device_handler_cancel_default(struct device_handler *handler);
void device_handler_boot(struct device_handler *handler,
struct boot_command *cmd);
void device_handler_cancel_default(struct device_handler *handler);
int device_request_write(struct discover_device *dev, bool *release);
void device_release_write(struct discover_device *dev, bool release);
int device_request_write(struct discover_device *dev, bool *release);
void device_release_write(struct discover_device *dev, bool release);