1 files changed, 6 insertions, 0 deletions
diff --git a/src/serialport/qserialport_win.cpp b/src/serialport/qserialport_win.cpp
index 3174db5..84d1db7 100644
--- a/src/serialport/qserialport_win.cpp
+++ b/src/serialport/qserialport_win.cpp
@@ -282,6 +282,12 @@ bool QSerialPortPrivate::clear(QSerialPort::Directions directions)
         return false;
     }
 
+    // We need start async read because a reading can be stalled. Since the
+    // PurgeComm can abort of current reading sequence, or a port is in hardware
+    // flow control mode, or a port has a limited read buffer size.
+    if (directions & QSerialPort::Input)
+        startAsyncRead();
+
     return true;
 }