the status word */
/* Transmission of raw data */
-int calypso_sim_receive(uint8_t *data); /* Receive raw data through the sim interface */
+int calypso_sim_receive(uint8_t *data, uint8_t len); /* Receive raw data through the sim interface */
int calypso_sim_transmit(uint8_t *data, int length); /* Transmit raw data through the sim interface */
-void calypso_sim_init(void); /* Initialize simcard interface */
+void calypso_sim_init(void (cb)(void)); /* Initialize simcard interface */
/* Known Bugs: