Add missng default parameters to waitFor() methods

... and adjust their documentation a bit.

[ChangeLog][QtSerialPort][QSerialPort] Added missing parameters for
waitFor() methods

Change-Id: I95d7076bfef47dd75d37960ca8a719ae779737d6
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>

2 files changed, 14 insertions, 5 deletions

diff --git a/src/serialport/qserialport.cpp b/src/serialport/qserialport.cpp
index 21727a0..4f3fd04 100644
--- a/src/serialport/qserialport.cpp
+++ b/src/serialport/qserialport.cpp
@@ -1286,10 +1286,11 @@ bool QSerialPort::canReadLine() const
 
     This function blocks until new data is available for reading and the
     \l{QIODevice::}{readyRead()} signal has been emitted. The function
-    will timeout after \a msecs milliseconds.
+    will timeout after \a msecs milliseconds; the default timeout is
+    30000 milliseconds.
 
-    The function returns true if the readyRead() signal is emitted and
-    there is new data available for reading; otherwise it returns false
+    The function returns \c true if the readyRead() signal is emitted and
+    there is new data available for reading; otherwise it returns \c false
     (if an error occurred or the operation timed out).
 
     \sa waitForBytesWritten()
@@ -1314,6 +1315,14 @@ bool QSerialPort::waitForReadyRead(int msecs)
 
 /*!
     \reimp
+
+    This function blocks until at least one byte has been written to the serial
+    port and the \l{QIODevice::}{bytesWritten()} signal has been emitted. The
+    function will timeout after \a msecs milliseconds; the default timeout is
+    30000 milliseconds.
+
+    The function returns \c true if the bytesWritten() signal is emitted; otherwise
+    it returns \c false (if an error occurred or the operation timed out).
 */
 bool QSerialPort::waitForBytesWritten(int msecs)
 {
diff --git a/src/serialport/qserialport.h b/src/serialport/qserialport.h
index 3289ca1..0a7ab0f 100644
--- a/src/serialport/qserialport.h
+++ b/src/serialport/qserialport.h
@@ -262,8 +262,8 @@ public:
     qint64 bytesToWrite() const Q_DECL_OVERRIDE;
     bool canReadLine() const Q_DECL_OVERRIDE;
 
-    bool waitForReadyRead(int msecs) Q_DECL_OVERRIDE;
-    bool waitForBytesWritten(int msecs) Q_DECL_OVERRIDE;
+    bool waitForReadyRead(int msecs = 30000) Q_DECL_OVERRIDE;
+    bool waitForBytesWritten(int msecs = 30000) Q_DECL_OVERRIDE;
 
 #if QT_DEPRECATED_SINCE(5, 5)
     QT_DEPRECATED bool sendBreak(int duration = 0);