uint32_t status_dev(DEVICE *dev);
bool eod_dev(DEVICE *dev);
bool fsf_dev(DEVICE *dev, int num);
-bool fsr_dev(DEVICE *dev, int num);
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 dev_can_write(DEVICE *dev);
bool offline_or_rewind_dev(DEVICE *dev);
bool reposition_dev(DEVICE *dev, uint32_t file, uint32_t block);
void init_device_wait_timers(DCR *dcr);