From 8fd33291cf79d22b1498b134b6f512fe4a3074b1 Mon Sep 17 00:00:00 2001
From: Jan Holthuis <jan.holthuis@ruhr-uni-bochum.de>
Date: Mon, 12 Sep 2016 14:08:39 +0200
Subject: [PATCH] linux/reicast-joyconfig: Flush stdin via termios if possible

This might be necessary to get rid of input characters from mapping
keyboard buttons.
---
 shell/linux/tools/reicast-joyconfig.py | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/shell/linux/tools/reicast-joyconfig.py b/shell/linux/tools/reicast-joyconfig.py
index 240575b89..05bfc52ce 100755
--- a/shell/linux/tools/reicast-joyconfig.py
+++ b/shell/linux/tools/reicast-joyconfig.py
@@ -22,6 +22,11 @@ except ImportError:
     print("  pip install evdev")
     sys.exit(1)
 
+try:
+    import termios
+except ImportError:
+    termios = None
+
 DEV_ID_PATTERN = re.compile('(\d+)')
 DREAMCAST_BUTTONS = ['A', 'B', 'C', 'D', 'X', 'Y', 'Z', 'START']
 DREAMCAST_DPAD = [('X', 'LEFT', 'RIGHT'), ('Y', 'UP', 'DOWN')]
@@ -212,6 +217,10 @@ def setup_device(dev_id):
 
 
 def ask_yes_no(question, default=True):
+    # Flush stdin (if possible)
+    if termios is not None:
+        termios.tcflush(sys.stdin, termios.TCIFLUSH)
+
     valid = {"yes": True, "y": True, "ye": True,
              "no": False, "n": False}
     prompt = "Y/n" if default else "y/N"