1 files changed, 1 insertions, 1 deletions
diff --git a/src/serialport/qserialport_unix.cpp b/src/serialport/qserialport_unix.cpp
index acd76b5..8e06ada 100644
--- a/src/serialport/qserialport_unix.cpp
+++ b/src/serialport/qserialport_unix.cpp
@@ -889,7 +889,7 @@ inline bool QSerialPortPrivate::initialize(QIODevice::OpenMode mode)
 
 qint64 QSerialPortPrivate::writeData(const char *data, qint64 maxSize)
 {
-    ::memcpy(writeBuffer.reserve(maxSize), data, maxSize);
+    writeBuffer.append(data, maxSize);
     if (!writeBuffer.isEmpty() && !isWriteNotificationEnabled())
         setWriteNotificationEnabled(true);
     return maxSize;