1 files changed, 4 insertions, 0 deletions
diff --git a/src/MTS_IO_SerialConnection.cpp b/src/MTS_IO_SerialConnection.cpp
index 936d28d..d13c565 100644
--- a/src/MTS_IO_SerialConnection.cpp
+++ b/src/MTS_IO_SerialConnection.cpp
@@ -546,6 +546,10 @@ int SerialConnection::doRead(char* pBuffer, const uint32_t& iSize, int32_t& time
         } else {
             if (FD_ISSET(h, &readfs)) {
                 result = ::read(h, pBuffer, iSize);
+                if (result ==  0) {
+                    printTrace("SERIAL| serial port [%s] disconnected", m_sPortName.c_str());
+                    result = -1;
+                }
             } else {
                 //socket closed?
                 result = -1;