From 4b84062d66d395be290312053701e6d11cd3d9cc Mon Sep 17 00:00:00 2001
From: Ondřej Vašík <ovasik@redhat.com>
Date: Tue, 5 Feb 2013 15:00:47 +0100
Subject: stty: add support for DTR/DSR hardware control flow

Originally requested in Red Hat bugzilla #445213.

* src/stty.c (mode_info): Add support for DTR/DSR hardware flow control,
if available.
* doc/coreutils.texi: Document it.
* tests/misc/stty.sh: Add it to the list of serial options to avoid.
* NEWS: Mention the improvement.
---
 src/stty.c | 4 ++++
 1 file changed, 4 insertions(+)

(limited to 'src')

diff --git a/src/stty.c b/src/stty.c
index fe0f22f8f..ee891a593 100644
--- a/src/stty.c
+++ b/src/stty.c
@@ -217,6 +217,9 @@ static struct mode_info const mode_info[] =
 #ifdef CRTSCTS
   {"crtscts", control, REV, CRTSCTS, 0},
 #endif
+#ifdef CDTRDSR
+  {"cdtrdsr", control, REV, CDTRDSR, 0},
+#endif
 
   {"ignbrk", input, SANE_UNSET | REV, IGNBRK, 0},
   {"brkint", input, SANE_SET | REV, BRKINT, 0},
@@ -581,6 +584,7 @@ Control settings:\n\
    [-]clocal     disable modem control signals\n\
    [-]cread      allow input to be received\n\
  * [-]crtscts    enable RTS/CTS handshaking\n\
+ * [-]cdtrdsr    enable DTR/DSR handshaking\n\
    csN           set character size to N bits, N in [5..8]\n\
 "), stdout);
       fputs (_("\
-- 
cgit v1.2.3-54-g00ecf