From 7b6cce7bcb54e70d2c3a1dcc6ca221906c2b3f79 Mon Sep 17 00:00:00 2001
From: Vladimir Zidar <vladimir.zidar@refuse.marketing>
Date: Wed, 15 Jun 2022 00:39:02 +0200
Subject: [PATCH] LP-457 Add missing PIOS_COM_ClearRxBuffer() to simposix
 target

---
 flight/pios/posix/pios_com.c | 20 ++++++++++++++++++++
 1 file changed, 20 insertions(+)

diff --git a/flight/pios/posix/pios_com.c b/flight/pios/posix/pios_com.c
index 8cd754055..5998b84c5 100644
--- a/flight/pios/posix/pios_com.c
+++ b/flight/pios/posix/pios_com.c
@@ -280,6 +280,26 @@ int32_t PIOS_COM_ChangeBaud(uint32_t com_id, uint32_t baud)
     return 0;
 }
 
+/**
+ * Clear Rx buffer
+ * \param[in] port COM port
+ * \return -1 if port not available
+ * \return 0 on success
+ */
+int32_t PIOS_COM_ClearRxBuffer(uint32_t com_id)
+{
+    struct pios_com_dev *com_dev = PIOS_COM_find_dev(com_id);
+
+    if (!PIOS_COM_validate(com_dev)) {
+        /* Undefined COM port for this board (see pios_board.c) */
+        return -1;
+    }
+
+    fifoBuf_clearData(&com_dev->rx);
+
+    return 0;
+}
+
 /**
  * Sends a package over given port
  * \param[in] port COM port