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<concept id="GUID-783D0B50-0E8A-5199-A07E-749D4A71E671" xml:lang="en"><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 id="GUID-5BD30F69-2DE0-40C6-8F45-3DDBC3F79A35"><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 id="GUID-ED477BF8-1A81-49C2-9566-682D70A9DC3A"><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 id="GUID-38AF6CEE-4F78-4113-AE85-CDD0390F1DC7"><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&lt;255&gt; name;
if(length &gt;= 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-&gt;Printf(_L("%d Bytes [Partial] Name: "), length);
        }
    else
        {
        iHROutputConsole-&gt;Printf(_L("%d Bytes [Complete] Name: "), length);
        }
        iHROutputConsole-&gt;Printf(_L("%S \n"),&amp;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-&gt;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 &gt;= KErrNone)
    {
    RArray&lt;TUUID&gt; uuids;
    TInt uuidCount = uuidContainer.UUIDs().Count();
    if(uuidCount &gt; 0)
     {
        iHROutputConsole-&gt;Printf(_L("*** UUID Count: %d\n"), uuidCount);
        TInt i;
        for(i=0;i&lt;uuidCount;i++)
            {
            TInt j;
            TPtrC8 uuid(uuidContainer.UUIDs()[i].ShortestForm());
            // Treat it as a big endian
            for(j=0;j&lt;uuid.Length();j++)
                {
                iHROutputConsole-&gt;Printf(_L("%02X"), uuid[j]);
                }
                
            iHROutputConsole-&gt;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&lt;255&gt; msd;
if(length &gt; 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 &gt;= KErrNone &amp;&amp; length &gt; 0)
        {
        iHROutputConsole-&gt;Printf(_L("%d Bytes Manufacturer Specific Data: %S\n"), length, &amp;name);
        }
    }
}</codeblock> </li>
</ol> </section>

</conbody><related-links>
<link href="GUID-F2A793F1-A5B5-526B-B147-771D440B13A2.dita"><linktext>Bluetooth Extended Inquiry Response</linktext></link>
</related-links></concept>