support: Pass serial port to serialInputClear

Firmware/RTK_Everywhere/Device_Firmware_Update.ino

@@ -76,7 +76,7 @@ void deviceFirmwareActionMenu(DEVICE_FIRMWARE_CTX * ctx)
         systemPrintf("x) Exit\r\n");
 
         // Discard the input
-        serialInputClear();
+        serialInputClear(&Serial);
 
         // Output the prompt
         systemPrintf("Select an action: ");
@@ -428,7 +428,7 @@ void deviceFirmwareDeviceListMenu(DEVICE_FIRMWARE_CTX * ctx)
         systemPrintf("x) Exit\r\n");
 
         // Discard the input
-        serialInputClear();
+        serialInputClear(&Serial);
         ctx->_buffer[0] = 0;
         ctx->_validDataBytes = 0;
 
@@ -494,7 +494,7 @@ void deviceFirmwareFileListMenu(DEVICE_FIRMWARE_CTX * ctx)
         systemPrintf("x) Exit\r\n");
 
         // Discard the input
-        serialInputClear();
+        serialInputClear(&Serial);
         ctx->_buffer[0] = 0;
         ctx->_validDataBytes = 0;
 

Firmware/RTK_Everywhere/System.ino

@@ -948,7 +948,7 @@ void reportFatalError(const char *errorMsg)
     displayHalt();
 
     // Empty the FIFO of any incoming data
-    serialInputClear();
+    serialInputClear(&Serial);
 
     lastDisplayMsec = millis() - MILLISECONDS_IN_A_DAY;
     while (1)

Firmware/RTK_Everywhere/support.ino

@@ -1568,10 +1568,10 @@ int countAppPartitions()
 //----------------------------------------
 // Discard any input data
 //----------------------------------------
-void serialInputClear()
+void serialInputClear(Stream * stream)
 {
-    while (Serial.available())
-        Serial.read();
+    while (stream->available())
+        stream->read();
 }
 
 // Returns true if a file exists on LittleFS, false if not or if LittleFS is not mounted