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<concept xml:lang="en" id="GUID-783D0B50-0E8A-5199-A07E-749D4A71E671"><title>Processing an Extended Inquiry Response</title><prolog><metadata><keywords/></metadata></prolog><conbody><p>This tutorial shows you how to retrieve and process the data from a Bluetooth Extended Inquiry Response (EIR). </p> <section><title>Introduction</title> <p>This tutorial shows you how to retrieve the EIR data and how to access the various types of data within it. </p> <p><b>Basic Procedure</b> </p> <p>The high level steps to access the EIR are shown here: </p> <ol id="GUID-27E2F081-EE4A-516D-8D04-29D1A4601045"><li id="GUID-2F5F1046-3335-53CA-AD6D-01D1981348B5"><p>Create the <codeph>EIR</codeph> object and during construction fill it with the data from the Extended Inquiry Response </p> </li> <li id="GUID-541D9DF2-816B-5057-B116-8A587F7A2146"><p>Use access functions to retrieve the different types of data. </p> </li> </ol> </section> <section><title>Environment</title> <p>This tutorial assumes that you have your device correctly configured, active and with Bluetooth enabled and the Bluetooth Stack initialised. <codeph>iResult</codeph> is in scope and contains a <xref href="GUID-C625E339-6726-3FB9-8F8A-F4DB0CAC15FF.dita"><apiname>TNameEntry</apiname></xref> object as the result of a successful Inquiry request. See <xref href="GUID-58F65411-CF08-5F46-8222-3FDB9E571FCC.dita">Inquiring About Remote Devices</xref>. </p> <p> <b>Note:</b> When the Inquiry Request is made, set the <codeph>aDoEIR</codeph> flag to specify that Extended Inquire Response data is required. The Bluetooth Stack will set the <codeph>aDoEIR</codeph> flag if an older version of the API (non-EIR) is used. </p> </section> <section><title>Tutorial</title> <p><b>Create an object to hold the Extended Inquiry Response data </b> </p> <ul><li id="GUID-0837BC7D-58A1-5E84-B64F-D2705DA2A844"><codeblock id="GUID-945D5812-6C22-595F-BE1F-F384C72121E1" xml:space="preserve">TBluetoothNameRecordWrapper eir(iResult());</codeblock> </li> </ul> <p><b> Use access functions to retrieve the various kinds of data</b> </p> <ol id="GUID-2733C57E-2A4B-58CD-9340-A0DA609F5705"><li id="GUID-0CA4F35B-23D4-570C-BAAC-520B5CEA62D2"><p>Get the Bluetooth device local name </p> <p> <b>Note:</b> The device local name may be truncated if it is too long to fit in the EIR data packet. If the name is not truncated then the <codeph>isNameComplete</codeph> flag will be set to <codeph>TRUE</codeph>. </p> <codeblock id="GUID-5F03D407-41FD-53AB-8DA7-B5F465719CFD" xml:space="preserve">

TBool isNameComplete;

TInt error = KErrNone;

TInt length = 0;

// Get name

// This length could be used to create the TBuf to be passed into GetDeviceName()

length = eir.GetDeviceNameLength();

TBuf<255> name;

if(length >= 0)

 {

 // name will contain a Unicode encoded 16-bit string

    error = eir.GetDeviceName(name, isNameComplete);

    }

 else

    {

        error = length;

    }

if(error == KErrNone)

// we have name here

    {

    if(isNameComplete == EFalse)

        {

        iHROutputConsole->Printf(_L("%d Bytes [Partial] Name: "), length);

        }

    else

        {

        iHROutputConsole->Printf(_L("%d Bytes [Complete] Name: "), length);

        }

        iHROutputConsole->Printf(_L("%S \n"),&name);

    }

</codeblock> </li> <li id="GUID-323875EC-7012-537A-935A-74A91DE0F8D7"><p>Get the Transmission Power level </p> <codeblock id="GUID-870F61A6-F827-5B6D-BD4D-A8BB9EFAB0C6" xml:space="preserve">// Get TxPowerLevel

TInt8 txPowerLevel;

error = eir.GetTxPowerLevel(txPowerLevel);

if(error == KErrNone)

    // TxPowerLevel present

    {

    iHROutputConsole->Printf(_L("TxPowerLevel: %ddBm\n"), txPowerLevel);

    }</codeblock> </li> <li id="GUID-2C67FE67-0652-5840-BA1F-04891A95CAB6"><p>Get the Service Class UUIDs. </p> <p> </p> <codeblock id="GUID-132B642E-EC0A-54D5-B0F6-4F4218578EB5" xml:space="preserve">// Get UUIDs

RExtendedInquiryResponseUUIDContainer uuidContainer;

error = eir.GetServiceClassUuids(uuidContainer);

if(error >= KErrNone)

    {

    RArray<TUUID> uuids;

    TInt uuidCount = uuidContainer.UUIDs().Count();

    if(uuidCount > 0)

     {

        iHROutputConsole->Printf(_L("*** UUID Count: %d\n"), uuidCount);

        TInt i;

        for(i=0;i<uuidCount;i++)

            {

            TInt j;

            TPtrC8 uuid(uuidContainer.UUIDs()[i].ShortestForm());

            // Treat it as a big endian

            for(j=0;j<uuid.Length();j++)

                {

                iHROutputConsole->Printf(_L("%02X"), uuid[j]);

                }

            iHROutputConsole->Printf(_L(" \n"));

            }

        }

    }</codeblock> </li> <li id="GUID-C694FBFB-496F-5936-B542-BDB3CD0C063B"><p>Get Manufacturer Specific data. </p> <p> <b>Note:</b> This data is entirely defined by the individual Manufacturer. </p> <codeblock id="GUID-A53768A5-9644-5D56-84BC-EAA4580E8280" xml:space="preserve">// Get Manufacturer Specific Data

length = eir.GetVendorSpecificDataLength();

TBuf8<255> msd;

if(length > 0)

    {

    error = eir.GetVendorSpecificData(msd);

    }

else

    {

    error = length;

 }

if(error == KErrNone)

// we have Manufacturer Specific Data here

    {

    // This conversion is for display reason, in a real world this may not be necessary as 

    // Manufacturer specific data can be just raw 8-bit data, however GetDeviceName() is

    // different as it always return Unicode encoded 16-bit string

    error = CnvUtfConverter::ConvertToUnicodeFromUtf8(name, msd);

    if(error >= KErrNone && length > 0)

        {

        iHROutputConsole->Printf(_L("%d Bytes Manufacturer Specific Data: %S\n"), length, &name);

        }

    }

}</codeblock> </li> </ol> </section> </conbody><related-links><link href="GUID-F2A793F1-A5B5-526B-B147-771D440B13A2.dita"><linktext>Bluetooth Extended Inquiry

             Response</linktext> </link> <link><linktext/></link></related-links></concept>