int priv_size;
GSList *(*scan)(struct drv_context *drvc);
int (*dev_inst_new)(void *priv, struct drv_context *drvc,
const char *resource, char **params, const char *serialcomm);
int (*open)(struct sr_scpi_dev_inst *scpi);
int priv_size;
GSList *(*scan)(struct drv_context *drvc);
int (*dev_inst_new)(void *priv, struct drv_context *drvc,
const char *resource, char **params, const char *serialcomm);
int (*open)(struct sr_scpi_dev_inst *scpi);