int comedi_buf_map_put(struct comedi_buf_map *bm);
struct comedi_buf_map *comedi_buf_map_from_subdev_get(
struct comedi_subdevice *s);
+unsigned int comedi_buf_write_n_available(struct comedi_subdevice *s);
unsigned int comedi_buf_write_n_allocated(struct comedi_subdevice *s);
void comedi_device_cancel_all(struct comedi_device *dev);
+bool comedi_can_auto_free_spriv(struct comedi_subdevice *s);
extern unsigned int comedi_default_buf_size_kb;
extern unsigned int comedi_default_buf_maxsize_kb;