bool bsf_dev(DEVICE *dev, int num);
bool bsr_dev(DEVICE *dev, int num);
void attach_jcr_to_device(DEVICE *dev, JCR *jcr);
void detach_jcr_from_device(DEVICE *dev, JCR *jcr);
JCR *next_attached_jcr(DEVICE *dev, JCR *jcr);
bool bsf_dev(DEVICE *dev, int num);
bool bsr_dev(DEVICE *dev, int num);
void attach_jcr_to_device(DEVICE *dev, JCR *jcr);
void detach_jcr_from_device(DEVICE *dev, JCR *jcr);
JCR *next_attached_jcr(DEVICE *dev, JCR *jcr);