From 3d425280b683a004690dd127404228c03a6d2e6a Mon Sep 17 00:00:00 2001
From: YAMAMOTO Takashi <yamamoto@midokura.com>
Date: Thu, 13 Feb 2020 11:19:15 +0900
Subject: [PATCH] simuart: Don't assume a specific endian

---
 arch/sim/src/sim/up_simuart.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/arch/sim/src/sim/up_simuart.c b/arch/sim/src/sim/up_simuart.c
index 5c49b4fbb9..d1c97a2e80 100644
--- a/arch/sim/src/sim/up_simuart.c
+++ b/arch/sim/src/sim/up_simuart.c
@@ -97,8 +97,9 @@ static void restoremode(void)
 int simuart_putraw(int ch)
 {
   ssize_t nwritten;
+  unsigned char buf = ch;
 
-  nwritten = write(1, &ch, 1);
+  nwritten = write(1, &buf, 1);
   if (nwritten != 1)
     {
       return -1;
@@ -154,7 +155,7 @@ int simuart_putc(int ch)
 int simuart_getc(void)
 {
   int ret;
-  int ch;
+  unsigned char ch;
 
   ret = read(0, &ch, 1);
   return ret < 0 ? ret : ch;