<?xml version="1.0" encoding="utf-8"?>
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    Nokia Corporation - initial contribution.
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<!DOCTYPE task
  PUBLIC "-//OASIS//DTD DITA Task//EN" "task.dtd">
<task id="GUID-FD4BD57B-99EE-41AE-BAB6-C422CA3B1E51" xml:lang="en"><title>Enabling
MTP over USB using the Symbian USB Manager</title><shortdesc>This section describes the steps to enable MTP over USB using the
Symbian USB Manager.</shortdesc><prolog><metadata><keywords/></metadata></prolog><taskbody>
<context>       <p>The USB Manager provides functions to enable MTP over USB.</p> 
   </context>
<steps id="GUID-12E76F69-4DA0-4F58-8B02-68180F2576ED">
<step id="GUID-B66CE19F-A6A0-46BD-AE1F-D93B773858D6"><cmd>In the user application which requests USB services, create a USB
Manager session by using the RUsb::Connect() function.</cmd>
<info><p/></info>
</step>
<step id="GUID-6B178935-1C5F-496F-8EF2-10CCE25C1C61"><cmd>Call the function RUsb::TryStart() and pass the personality ID
of the USB Still Image Class to the method. For more information about Personality
ID, see <xref href="GUID-92976123-FA75-5B55-B86E-F7B404E762CF.dita">Discovering
details of USB personalities</xref></cmd>
</step>
<step id="GUID-B013CA86-3A98-445E-AC7A-D6DA31DD73B0"><cmd>The USB Manager automatically loads the USB Still Image Class Controller
which is a client of the MTP server. The Controller starts the MTP server
and asks it to load the USB MTP Transport plug-in.</cmd>
</step>
</steps>
<example><codeblock xml:space="preserve">RUsb usb;
TInt err = usb.Connect();
if( err != KErrNone)
   {
    // Error in connecting with the USB Manager
   }

// Find the personality that supports MTP USB SIC 
TInt personalityId(KErrNotFound);
RArray&lt;TInt&gt; personalityIds;

err = usb.GetPersonalityIds(personalityIds);
if ( err != KErrNone)
   {
   // Error handling
   }
        
TInt count = personalityIds.Count();    
for (TInt i(0); i &lt; count; i++)
   {
   TBool supported(EFalse);
   err = usb.ClassSupported(personalityIds[i], KUsbMTPUsbSicClassControllerUID, supported);
   if (err != KErrNone)
      {
      // Error handling
      }

   if (supported)
      {
      personalityId = personalityIds[i];    
      break;
      }
   }
personalityIds.Close();

if (personalityId != KErrNotFound)
   {
   TRequestStatus status ;
   usb.TryStart(personalityId, status);
   User::WaitForRequest(status);
   if(status.Int() != KErrNone)
      {
       // Error in trying to start the MTP service
      }
    }
...

usb.Close();
</codeblock></example>
</taskbody></task>