From 8474b9cb829f20c0248761e8bb756bd8d5942f75 Mon Sep 17 00:00:00 2001
From: rlfnb <rlfnb@rlfnb.de>
Date: Tue, 25 Oct 2016 16:17:33 +0200
Subject: [PATCH] prepare knob to turn RTS/CTS on/off

---
 minix/drivers/tty/tty/arch/i386/rs232.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/minix/drivers/tty/tty/arch/i386/rs232.c b/minix/drivers/tty/tty/arch/i386/rs232.c
index a61765262..129bd9d0f 100644
--- a/minix/drivers/tty/tty/arch/i386/rs232.c
+++ b/minix/drivers/tty/tty/arch/i386/rs232.c
@@ -219,6 +219,7 @@ static int rs_break_off(tty_t *tp, int try);
 static int rs_close(tty_t *tp, int try);
 static void out_int(rs232_t *rs);
 static void rs232_handler(rs232_t *rs);
+static long no_rts_cts;
 
 static int my_inb(port_t port)
 {
@@ -452,6 +453,7 @@ void rs_init(tty_t *tp)
   int s, irq;
   char l[10];
 
+  env_parse("tty_rtscts", "d", 0, &no_rts_cts, 0, 1);
   /* Associate RS232 and TTY structures. */
   line = tp - &tty_table[NR_CONS];