improve CTRL+C support on posix platforms
diff --git a/pyserial/examples/miniterm.py b/pyserial/examples/miniterm.py
index 9f4bf21..06f9576 100644
--- a/pyserial/examples/miniterm.py
+++ b/pyserial/examples/miniterm.py
@@ -30,7 +30,7 @@
fd = sys.stdin.fileno()
old = termios.tcgetattr(fd)
new = termios.tcgetattr(fd)
- new[3] = new[3] & ~termios.ICANON & ~termios.ECHO
+ new[3] = new[3] & ~termios.ICANON & ~termios.ECHO & ~termios.ISIG
new[6][termios.VMIN] = 1
new[6][termios.VTIME] = 0
termios.tcsetattr(fd, termios.TCSANOW, new)