-SR_PRIV void la_send_data_proc(void *cb_data, uint8_t *data, size_t length,
+SR_PRIV void la_send_data_proc(struct dev_context *devc, uint8_t *data, size_t length,
+ size_t sample_width);
+SR_PRIV void mso_send_data_proc(struct dev_context *devc, uint8_t *data, size_t length,