-SR_PRIV int rigol_ds1xx2_receive_data(int fd, int revents, void *cb_data);
-
-SR_PRIV int rigol_ds1xx2_send_data(int fd, const char *format, ...);
+SR_PRIV int rigol_ds1xx2_receive(int fd, int revents, void *cb_data);
+SR_PRIV int rigol_ds1xx2_send(struct dev_context *devc, const char *format, ...);
+SR_PRIV int rigol_ds1xx2_get_dev_cfg(const struct sr_dev_inst *sdi);