Java HotSpot Virtual Machine

Here is the Code that i am using in the JNI fucntion from that function i have to call the c function which in the Same file .
below is the code

    JNIEXPORT jbyteArray JNICALL Java_IntArray_sumArray
  (JNIEnv *env, jobject obj, jbyteArray arr, jbyteArray arr1)
{
jint i;
int len = (*env)->GetArrayLength(env,arr);
int length =(*env)->GetArrayLength(env,arr1);
printf("length=%d \n",len);
printf("Length of second array = %d\n",length);
jbyte *carr = (jbyte *)(*env)->GetByteArrayElements(env,arr,NULL);
jbyte *carr1 = (jbyte *)(*env)->GetByteArrayElements(env,arr1,NULL);
jbyteArray jdest =(*env)->NewByteArray(env,len);


if(jdest != NULL){
 (*env)->SetByteArrayRegion(env,jdest,0,len,(jbyte *)carr);
   return(jdest);
}

 piximcontroller(jdest,arr);   /* How to type cast it to void * */

the c function declaration is

void piximController(void *pInputArg,void *pOutputArg) 

Please help me in this issue how to call that function from JNI fucntion