upm/src/ublox6/javaupm_ublox6.i

%module javaupm_ublox6
%include "../upm.i"
%include "stdint.i"
%include "carrays.i"

%{
    #include "ublox6.h"
    speed_t int_B9600 = B9600;
%}

%typemap(jni) (char *buffer, size_t len) "jbyteArray";
%typemap(jtype) (char *buffer, size_t len) "byte[]";
%typemap(jstype) (char *buffer, size_t len) "byte[]";

%typemap(in) (char *buffer, size_t len) {
        $1 = (char *) JCALL2(GetByteArrayElements, jenv, $input, NULL);
        $2 = JCALL1(GetArrayLength, jenv, $input);
}

%typemap(freearg) readData(char *buffer, size_t len) {
        JCALL2(ReleaseByteArrayElements, jenv, $input, JNI_ABORT);
}

%typemap(freearg) writeData(char *buffer, size_t len) {
        JCALL2(ReleaseByteArrayElements, jenv, $input, 0);
}

%include "ublox6.h"
speed_t int_B9600 = B9600;
%array_class(char, charArray);