From d89e55e5d7d2fbe072481107021206791ecf2d52 Mon Sep 17 00:00:00 2001
From: Ivan Kravets <me@ikravets.com>
Date: Fri, 13 Mar 2015 13:19:00 +0200
Subject: [PATCH] Disable uploading using mass storage disk for Mac OS X 10.10
 (issue with FAT12)

---
 platformio/builder/scripts/ststm32.py | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/platformio/builder/scripts/ststm32.py b/platformio/builder/scripts/ststm32.py
index f10e4255..7b4d80e3 100644
--- a/platformio/builder/scripts/ststm32.py
+++ b/platformio/builder/scripts/ststm32.py
@@ -5,6 +5,7 @@
     Builder for ST STM32 Series ARM microcontrollers.
 """
 
+import platform
 from os.path import join
 
 from SCons.Script import (COMMAND_LINE_TARGETS, AlwaysBuild, Default,
@@ -63,7 +64,9 @@ AlwaysBuild(target_size)
 # Target: Upload by default .bin file
 #
 
-if "mbed" in env.subst("$FRAMEWORK"):
+disable_msd = (platform.system() == "Darwin" and
+               platform.release().startswith("14."))
+if "mbed" in env.subst("$FRAMEWORK") and not disable_msd:
     upload = env.Alias(["upload", "uploadlazy"],
                        target_firm, env.UploadToDisk)
 else: