1 files changed, 5 insertions, 1 deletions

diff --git a/libopie2/opiemm/osoundsystem.h b/libopie2/opiemm/osoundsystem.h
index bd69114..ac7a5a7 100644
--- a/libopie2/opiemm/osoundsystem.h
+++ b/libopie2/opiemm/osoundsystem.h
@@ -173,60 +173,64 @@ class OMixerInterface : public QObject
   Q_OBJECT
 
   public:
 
     typedef QMap<QString,int>::ConstIterator ChannelIterator;
 
     /**
      * Constructor. Normally you don't create @ref OMixerInterface objects yourself,
      * but access them via the @ref OSoundCard interface.
      */
     OMixerInterface( QObject* parent, const char* name );
     /**
      * Destructor.
      */
     virtual ~OMixerInterface();
 
     /**
      * @returns all available channels.
      */
     QStringList allChannels() const;
     /**
      * @returns recordable channels.
      */
     QStringList recChannels() const;
     /**
      * @returns playable channels.
      */
     QStringList playChannels() const;
 
     /**
      * @returns true, if @a channel exists.
      */
-    bool hasChannel( const QString& channel );
+    bool hasChannel( const QString& channel ) const;
+    /**
+     * @returns true, if @a channel is stereo.
+     */
+    bool isStereo( const QString& channel ) const;
 
     /**
      * Set the @a left and @a right volumes for @a channel.
      * If no value for right is given, the value for left is taken for that.
      */
     void setVolume( const QString& channel, int left, int right = -1 );
     /**
      * @returns the volume of @a channel or -1, if the channel doesn't exist.
      * @note You might want to use @ref hasChannel() to check if a channel exists.
      */
     int volume( const QString& channel ) const;
 
   protected:
     int _fd;
     QMap<QString, int> _channels;
 
   private:
     void init();
   private:
     class Private;
     Private *d;
 };
 
 }
 }
 
 #endif // OSOUNDSYSTEM_H