update

spisound.c

@@ -197,3 +197,5 @@ void spisound_dump_last_error() {
   printf("- sys_ error  : %s(%d)\n", strerror(m_sys_error), m_sys_error);
   printf("-\n");
 }
+
+const char *spisound_libversion() { return "1.0.0"; }

spisound.h

@@ -58,6 +58,7 @@ static inline const char *error_code_to_string(error_code_t code) {
  */
 error_code_t spisound_init(const char *deviceName, int csgpionId, spisound_cb_t callback);
 error_code_t spisound_start_capture(void);
+const char  *spisound_libversion();
 
 void spisound_dump_last_error();
 #ifdef cplusplus