Tools: allow uploader.py to detect ttyS* on Ubuntu on Windows (WSL)

Tools/scripts/uploader.py

@@ -64,9 +64,12 @@ import base64
 import time
 import array
 import os
+import platform
 
 from sys import platform as _platform
 
+is_WSL = bool("Microsoft" in platform.uname()[2])
+
 # default list of port names to look for autopilots
 default_ports = [ '/dev/serial/by-id/usb-Ardu*',
                   '/dev/serial/by-id/usb-3D*',
@@ -78,7 +81,7 @@ default_ports = [ '/dev/serial/by-id/usb-Ardu*',
                   '/dev/serial/by-id/usb-Holybro*',
                   '/dev/tty.usbmodem*']
 
-if "cygwin" in _platform:
+if "cygwin" in _platform or is_WSL:
     default_ports += [ '/dev/ttyS*' ]
     
 # Detect python version
@@ -771,8 +774,9 @@ def main():
                                   args.source_component)
 
                 except Exception as e:
+                    if not is_WSL:
+                        # open failed, WSL must cycle through all ttyS* ports quickly but rate limit everything else
                         print("Exception creating uploader: %s" % str(e))
-                    # open failed, rate-limit our attempts
                         time.sleep(0.05)
 
                     # and loop to the next port