From f665595f0f0f9bbe3d7b62c7b9e7f34125d87e11 Mon Sep 17 00:00:00 2001
From: Justin Hirsch <justin@northworld.com>
Date: Mon, 25 Feb 2019 15:13:21 -0800
Subject: [PATCH] Fix custom baud rate for termios on apple

---
 c/common/i2cdriver.c | 14 ++++++++++----
 1 file changed, 10 insertions(+), 4 deletions(-)

diff --git a/c/common/i2cdriver.c b/c/common/i2cdriver.c
index 852e7c8..331fd18 100644
--- a/c/common/i2cdriver.c
+++ b/c/common/i2cdriver.c
@@ -126,14 +126,15 @@ int openSerialPort(const char *portname)
     perror(portname);
     return -1;
   }
-
   tcgetattr(fd, &Settings);
-#if defined(__APPLE__) && !defined(B1000000)
-#define B1000000 1000000
-#endif
 
+#if defined(__APPLE__) && !defined(B1000000)
+  #include <IOKit/serial/ioss.h>
+#else
   cfsetispeed(&Settings, B1000000);
   cfsetospeed(&Settings, B1000000);
+#endif
+
 
   cfmakeraw(&Settings);
   Settings.c_cc[VMIN] = 1;
@@ -142,6 +143,11 @@ int openSerialPort(const char *portname)
     return -1;
   }
 
+#if defined(__APPLE__) && !defined(B1000000)
+  speed_t speed = (speed_t)1000000;
+  ioctl(fd, IOSSIOSPEED, &speed);
+#endif
+
   return fd;
 }