[PowerProfiler] pySerial module serial.tools.list_ports for linux should include the product inform…

tools/telemetry/third_party/pyserial/serial/tools/list_ports_linux.py

 #!/usr/bin/env python
 
 # portable serial port access with python
 #
 # This is a module that gathers a list of serial ports including details on
 # GNU/Linux systems
 #
 # (C) 2011-2013 Chris Liechti <cliechti@gmx.net>
 # this is distributed under a free software license, see license.txt
 
@@ skipping 92 matching lines @@
     base = os.path.basename(device)
     # USB-Serial devices
     sys_dev_path = '/sys/class/tty/%s/device/driver/%s' % (base, base)
     if os.path.exists(sys_dev_path):
         sys_usb = os.path.dirname(os.path.dirname(os.path.realpath(sys_dev_path)))
         return usb_lsusb_string(sys_usb)
     # USB-CDC devices
     sys_dev_path = '/sys/class/tty/%s/device/interface' % (base,)
     if os.path.exists(sys_dev_path):
         return read_line(sys_dev_path)
+
+    # USB Product Information
+    sys_dev_path = '/sys/class/tty/%s/device' % (base,)
+    if os.path.exists(sys_dev_path):
+        product_name_file = os.path.dirname(os.path.realpath(sys_dev_path)) + "/product"
+        if os.path.exists(product_name_file):
+            return read_line(product_name_file)
+
     return base
 
 def hwinfo(device):
     """Try to get a HW identification using sysfs"""
     base = os.path.basename(device)
     if os.path.exists('/sys/class/tty/%s/device' % (base,)):
         # PCI based devices
         sys_id_path = '/sys/class/tty/%s/device/id' % (base,)
         if os.path.exists(sys_id_path):
             return read_line(sys_id_path)
@@ skipping 11 matching lines @@
 
 def comports():
     devices = glob.glob('/dev/ttyS*') + glob.glob('/dev/ttyUSB*') + glob.glob('/dev/ttyACM*')
     return [(d, describe(d), hwinfo(d)) for d in devices]
 
 # - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
 # test
 if __name__ == '__main__':
     for port, desc, hwid in sorted(comports()):
         print "%s: %s [%s]" % (port, desc, hwid)