Add win-list-com-ports.py.

Utility for listing COM ports available on the system. Taken from Eli
Bendersky.

Signed-off-by: Marti Bolivar <mbolivar@lozenge.(none)>

1 files changed, 29 insertions, 0 deletions

diff --git a/support/scripts/win-list-com-ports.py b/support/scripts/win-list-com-ports.py
new file mode 100644
index 0000000..3e6ecb8
--- /dev/null
+++ b/support/scripts/win-list-com-ports.py
@@ -0,0 +1,29 @@
+# Windows program for listing COM (serial) ports.
+#
+# enumerate_serial_ports() is by Eli Bendersky:
+#
+# http://eli.thegreenplace.net/2009/07/31/listing-all-serial-ports-on-windows-with-python/
+
+import _winreg as winreg
+import itertools
+
+def enumerate_serial_ports():
+    """ Uses the Win32 registry to return an
+        iterator of serial (COM) ports
+        existing on this computer.
+    """
+    path = 'HARDWARE\\DEVICEMAP\\SERIALCOMM'
+    try:
+        key = winreg.OpenKey(winreg.HKEY_LOCAL_MACHINE, path)
+    except WindowsError:
+        raise IterationError
+
+    for i in itertools.count():
+        try:
+            val = winreg.EnumValue(key, i)
+            yield str(val[1])
+        except EnvironmentError:
+            break
+
+for com in enumerate_serial_ports():
+    print com