From 341437df1387aaf0128dd5304b5c0cc8ad734e69 Mon Sep 17 00:00:00 2001
From: Robin Mueller <muellerr@irs.uni-stuttgart.de>
Date: Tue, 21 Mar 2023 20:20:13 +0100
Subject: [PATCH] add flush functions for serial helpers

---
 src/fsfw_hal/linux/serial/helper.cpp | 4 ++++
 src/fsfw_hal/linux/serial/helper.h   | 3 +++
 2 files changed, 7 insertions(+)

diff --git a/src/fsfw_hal/linux/serial/helper.cpp b/src/fsfw_hal/linux/serial/helper.cpp
index ba975f2f..bc344608 100644
--- a/src/fsfw_hal/linux/serial/helper.cpp
+++ b/src/fsfw_hal/linux/serial/helper.cpp
@@ -161,3 +161,7 @@ void uart::setStopbits(struct termios& options, StopBits bits) {
     options.c_cflag &= ~CSTOPB;
   }
 }
+
+void uart::flushRxBuf(int fd) { tcflush(fd, TCIFLUSH); }
+
+void uart::flushTxRxBuf(int fd) { tcflush(fd, TCIOFLUSH); }
diff --git a/src/fsfw_hal/linux/serial/helper.h b/src/fsfw_hal/linux/serial/helper.h
index 7f067d00..833886b1 100644
--- a/src/fsfw_hal/linux/serial/helper.h
+++ b/src/fsfw_hal/linux/serial/helper.h
@@ -64,6 +64,9 @@ void setParity(struct termios& options, Parity parity);
 
 void ignoreCtrlLines(struct termios& options);
 
+void flushRxBuf(int fd);
+void flushTxRxBuf(int fd);
+
 int readCountersAndErrors(int serialPort, serial_icounter_struct& icounter);
 
 }  // namespace uart