diff --git a/doc/src/classes.qdoc b/doc/src/classes.qdoc
index 1f3d459..6a7a14d 100644
--- a/doc/src/classes.qdoc
+++ b/doc/src/classes.qdoc
@@ -25,6 +25,7 @@
             <li><a href="qpieslice.html">QPieSlice</a></li>
             <li><a href="qscatterseries.html">QScatterSeries</a></li>
             <li><a href="qseries.html">QSeries</a></li>
+            <li><a href="qsplineseries.html">QSplineSeries</a></li>
             <li><a href="qstackedbarseries.html">QStackedBarSeries</a></li>
         </ul>
         </td>
diff --git a/src/splinechart/qsplineseries.cpp b/src/splinechart/qsplineseries.cpp
index 2a97231..5c7bfa2 100644
--- a/src/splinechart/qsplineseries.cpp
+++ b/src/splinechart/qsplineseries.cpp
@@ -1,7 +1,30 @@
 #include "qsplineseries.h"
 
+/*!
+    \class QSplineSeries
+    \brief Series type used to store data needed to draw a spline.
+
+    QSplineSeries stores the data points along with the segment control points needed by QPainterPath to draw spline
+    Control points are automatically calculated when data changes. The algorithm computes the points so that the normal spline can be drawn.
+*/
+
+/*!
+  \fn QSeriesType QSplineSeries::type() const
+  Returns the type of the series
+  */
+
+/*!
+  \fn QSeriesType QSplineSeries::controlPoint(int index) const
+  Returns the control point specified by \a index
+  */
+
 QTCOMMERCIALCHART_BEGIN_NAMESPACE
 
+/*!
+    Constructs empty series object which is a child of \a parent.
+    When series object is added to QChartView or QChart instance then the ownerships is transfered.
+  */
+
 QSplineSeries::QSplineSeries(QObject *parent) :
     QLineSeries(parent)
 {
@@ -10,11 +33,15 @@ QSplineSeries::QSplineSeries(QObject *parent) :
     connect(this,SIGNAL(pointReplaced(int)), this, SLOT(updateControlPoints()));
 }
 
+/*!
+  \internal
+  Calculates control points which are needed by QPainterPath.cubicTo function to draw the cubic Bezier cureve between two points.
+  */
 void QSplineSeries::calculateControlPoints()
 {
 
     // Based on http://www.codeproject.com/Articles/31859/Draw-a-Smooth-Curve-through-a-Set-of-2D-Points-wit
-    // CPOL Licence
+    // CPOL License
 
     int n = m_x.size() - 1;
     if (n == 1)
@@ -74,6 +101,9 @@ void QSplineSeries::calculateControlPoints()
     }
 }
 
+/*!
+  \internal
+  */
 QList<qreal> QSplineSeries::getFirstControlPoints(QList<qreal> rhs)
 {
     QList<qreal> x; // Solution vector.
@@ -94,6 +124,10 @@ QList<qreal> QSplineSeries::getFirstControlPoints(QList<qreal> rhs)
     return x;
 }
 
+/*!
+  \internal
+  Updates the control points, besed on currently avaiable knots.
+  */
 void QSplineSeries::updateControlPoints()
 {
     if(m_x.size() > 1)
diff --git a/src/splinechart/qsplineseries.h b/src/splinechart/qsplineseries.h
index b945f00..89218f6 100644
--- a/src/splinechart/qsplineseries.h
+++ b/src/splinechart/qsplineseries.h
@@ -17,7 +17,7 @@ class QSplineSeries : public QLineSeries
     QSplineSeries(QObject *parent = 0);
     QSeriesType type() const { return QSeries::SeriesTypeSpline; }
 
-    int count() const { return m_x.size(); }
+//    int count() const { return m_x.size(); }
     QPointF controlPoint(int index) const { return m_controlPoints[index]; }
 
     private: