6 files changed, 22 insertions, 1 deletions
diff --git a/src/bluetooth/qbluetoothsocket.cpp b/src/bluetooth/qbluetoothsocket.cpp
index 57dd3aa0..2f38ed04 100644
--- a/src/bluetooth/qbluetoothsocket.cpp
+++ b/src/bluetooth/qbluetoothsocket.cpp
@@ -300,7 +300,7 @@ qint64 QBluetoothSocket::bytesAvailable() const
 qint64 QBluetoothSocket::bytesToWrite() const
 {
     Q_D(const QBluetoothSocket);
-    return d->txBuffer.size();
+    return d->bytesToWrite();
 }
 
 /*!
diff --git a/src/bluetooth/qbluetoothsocket_android.cpp b/src/bluetooth/qbluetoothsocket_android.cpp
index c2fc96f2..6a92f29a 100644
--- a/src/bluetooth/qbluetoothsocket_android.cpp
+++ b/src/bluetooth/qbluetoothsocket_android.cpp
@@ -879,6 +879,11 @@ qint64 QBluetoothSocketPrivate::bytesAvailable() const
     return 0;
 }
 
+qint64 QBluetoothSocketPrivate::bytesToWrite() const
+{
+    return 0; // nothing because always unbuffered
+}
+
 bool QBluetoothSocketPrivate::canReadLine() const
 {
     // We cannot access buffer directly as it is part of different thread
diff --git a/src/bluetooth/qbluetoothsocket_bluez.cpp b/src/bluetooth/qbluetoothsocket_bluez.cpp
index dca1bc3b..6aef811a 100644
--- a/src/bluetooth/qbluetoothsocket_bluez.cpp
+++ b/src/bluetooth/qbluetoothsocket_bluez.cpp
@@ -592,6 +592,11 @@ qint64 QBluetoothSocketPrivate::bytesAvailable() const
     return buffer.size();
 }
 
+qint64 QBluetoothSocketPrivate::bytesToWrite() const
+{
+    return txBuffer.size();
+}
+
 bool QBluetoothSocketPrivate::canReadLine() const
 {
     return buffer.canReadLine();
diff --git a/src/bluetooth/qbluetoothsocket_p.cpp b/src/bluetooth/qbluetoothsocket_p.cpp
index dc14e97b..39d483d6 100644
--- a/src/bluetooth/qbluetoothsocket_p.cpp
+++ b/src/bluetooth/qbluetoothsocket_p.cpp
@@ -163,4 +163,9 @@ bool QBluetoothSocketPrivate::canReadLine() const
     return false;
 }
 
+qint64 QBluetoothSocketPrivate::bytesToWrite() const
+{
+    return 0;
+}
+
 QT_END_NAMESPACE
diff --git a/src/bluetooth/qbluetoothsocket_p.h b/src/bluetooth/qbluetoothsocket_p.h
index cfa342bb..9aabf660 100644
--- a/src/bluetooth/qbluetoothsocket_p.h
+++ b/src/bluetooth/qbluetoothsocket_p.h
@@ -167,6 +167,7 @@ public:
 
     qint64 bytesAvailable() const;
     bool canReadLine() const;
+    qint64 bytesToWrite() const;
 
 public:
     QPrivateLinearBuffer buffer;
diff --git a/src/bluetooth/qbluetoothsocket_winrt.cpp b/src/bluetooth/qbluetoothsocket_winrt.cpp
index a56e10fa..4a9d1b93 100644
--- a/src/bluetooth/qbluetoothsocket_winrt.cpp
+++ b/src/bluetooth/qbluetoothsocket_winrt.cpp
@@ -569,6 +569,11 @@ qint64 QBluetoothSocketPrivate::bytesAvailable() const
     return buffer.size();
 }
 
+qint64 QBluetoothSocketPrivate::bytesToWrite() const
+{
+    return 0; // nothing because always unbuffered
+}
+
 bool QBluetoothSocketPrivate::canReadLine() const
 {
     return buffer.canReadLine();