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//---------------------------------------------------------------------------// InterruptReportCallbackFunction//---------------------------------------------------------------------------void InterruptReportCallbackFunction              (void *	 		target,               IOReturn 		result,               void * 			refcon,               void * 			sender,               UInt32		 	bufferSize){    HIDDataRef hidDataRef = (HIDDataRef)refcon;    int index;        if ( !hidDataRef )        return;    printf("Buffer = ");    for ( index=0; index<bufferSize; index++)        printf("%2.2x ", hidDataRef->buffer[index]);            printf("\n");}