2 files changed, 41 insertions, 5 deletions
diff --git a/support/make/build-rules.mk b/support/make/build-rules.mk
index 274152c..3892af9 100644
--- a/support/make/build-rules.mk
+++ b/support/make/build-rules.mk
@@ -23,9 +23,6 @@ ifndef V
    SILENT_OBJDUMP  = @echo '  [OBJDUMP]  ' $(OBJDUMP);
 endif
 
-DFU             := dfu-util
-OPENOCD         := openocd
-
 BUILDDIRS :=
 TGT_BIN   :=
 
diff --git a/support/scripts/reset.py b/support/scripts/reset.py
index cc944ee..7cafefc 100755
--- a/support/scripts/reset.py
+++ b/support/scripts/reset.py
@@ -1,13 +1,52 @@
 #!/usr/bin/python
 
-# NOTE: On Mac OSX this script must be run as sudo? 
+# NOTE: On Mac OSX this script must be run as sudo?
 
 import serial
 import os
+import sys
 from struct import pack
 
+def get_maple_device_path_osx():
+    """Try to find the device file for the Maple on OS X.  If there
+    are multiple possibilities, ask the user what to do.  If the user
+    chooses not to say, returns None."""
+    possible_maple_paths = [x for x in os.listdir('/dev') if \
+                                'tty.usbmodem' in x]
+    if len(possible_maple_paths) == 1:
+        return possible_maple_paths[0]
+    else:
+        print 'Attempting to reset Maple, but found multiple ' + \
+            'candidates for the Maple device:'
+        for (i,p) in enumerate(possible_maple_paths):
+            print '\t%d. %s' % (i+1,os.path.join('/dev',p))
+
+        prompt = 'Enter a number to select one, or q to quit: '
+        while True:
+            resp = raw_input(prompt).strip().lower()
+            if resp == 'q': return None
+
+            try:
+                i = int(resp, 10)
+            except ValueError:
+                pass
+            else:
+                if 0 <= i-1 < len(possible_maple_paths):
+                    return os.path.join('/dev',possible_maple_paths[i-1])
+            prompt = 'Please enter a number from the list, or q to quit: '
+
+os_sysname = os.uname()[0]
+if os_sysname == 'Linux':
+    maple_path = '/dev/maple'
+elif os_sysname == 'Darwin':
+    maple_path = get_maple_device_path_osx()
+    if maple_path is None: sys.exit()
+else:
+    # TODO [mbolivar] special cases for windows, BSD, whatever?
+    maple_path = '/dev/maple'
+
 try:
-    ser = serial.Serial('/dev/maple', baudrate=115200, xonxoff=1)
+    ser = serial.Serial(maple_path, baudrate=115200, xonxoff=1)
     ser.open()
 
     # try to toggle DTR/RTS (old scheme)