char DataBuffer[2] = { 0x06 }; //Hex for ACK
BOOL bErrorFlag = FALSE;
uint8_t * pTmpBuf = (uint8_t *)calloc(outputReportLength, sizeof(uint8_t));
uint8_t * pAppBuffer = (uint8_t *)calloc(outputReportLength, sizeof(uint8_t));
DWORD nRead;


if (pTmpBuf == NULL)
{
    //return error(“memory allocation failed”);
}
//
// copy data to be sent, reserving the 1st byte for report ID
//
unsigned long Written = 0;
memcpy(pTmpBuf + 1, DataBuffer, sizeof(DataBuffer));
bErrorFlag = WriteFile(hDevice, pTmpBuf, outputReportLength, &Written, NULL);
free(pTmpBuf);