i forgot to push..

src/fsfw_hal/linux/serial/helper.cpp

@@ -1,6 +1,8 @@
 #include <fsfw_hal/linux/serial/helper.h>
 #include <sys/ioctl.h>
+#include <termios.h>
 
+#include "FSFWConfig.h"
 #include "fsfw/serviceinterface.h"
 
 void serial::setMode(struct termios& options, UartModes mode) {
@@ -108,7 +110,7 @@ void serial::setBaudrate(struct termios& options, UartBaudRate baud) {
 #endif  // ! __APPLE__
     default:
 #if FSFW_CPP_OSTREAM_ENABLED == 1
-      sif::warning << "UartComIF::configureBaudrate: Baudrate not supported" << std::endl;
+      sif::warning << "serial::configureBaudrate: Baudrate not supported" << std::endl;
 #endif
       break;
   }
@@ -153,15 +155,17 @@ int serial::readCountersAndErrors(int serialPort, serial_icounter_struct& icount
 }
 
 void serial::setStopbits(struct termios& options, StopBits bits) {
+  // Regular case: One stop bit.
+  options.c_cflag &= ~CSTOPB;
   if (bits == StopBits::TWO_STOP_BITS) {
     // Use two stop bits
     options.c_cflag |= CSTOPB;
-  } else {
-    // Clear stop field, only one stop bit used in communication
-    options.c_cflag &= ~CSTOPB;
   }
 }
 
 void serial::flushRxBuf(int fd) { tcflush(fd, TCIFLUSH); }
 
+void serial::flushTxBuf(int fd) { tcflush(fd, TCOFLUSH); }
+
 void serial::flushTxRxBuf(int fd) { tcflush(fd, TCIOFLUSH); }
+

src/fsfw_hal/linux/serial/helper.h

@@ -65,6 +65,7 @@ void setParity(struct termios& options, Parity parity);
 void ignoreCtrlLines(struct termios& options);
 
 void flushRxBuf(int fd);
+void flushTxBuf(int fd);
 void flushTxRxBuf(int fd);
 
 int readCountersAndErrors(int serialPort, serial_icounter_struct& icounter);