From 5fe668c55bc6f733ca4920ad9a3941099af06840 Mon Sep 17 00:00:00 2001
From: "olaf.czerwinski" <olaf.czerwinski@phoenix-rtos.com>
Date: Tue, 24 Feb 2026 16:00:40 +0100
Subject: [PATCH] termios: Add TIOCSHALFD for ioctl() for enabling half-duplex
 uart

TASK: PP-428
---
 include/termios.h | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/include/termios.h b/include/termios.h
index e571a040..8aca4d40 100644
--- a/include/termios.h
+++ b/include/termios.h
@@ -200,6 +200,8 @@ struct winsize {
 #define TIOCSWINSZ _IOW('t', 0x14, struct winsize)
 #define TIOCNOTTY  _IO('t', 0x22)
 #define TIOCGSID   _IOR('t', 0x29, pid_t)
+#define TIOCGHALFD _IOR('t', 0x80, int)
+#define TIOCSHALFD _IOV('t', 0x81, int)
 
 /* tcflush */
 enum { TCIFLUSH,