[Android] Do not fail devices status check if lsusb -v times out

build/android/devil/utils/lsusb.py

 # Copyright 2015 The Chromium Authors. All rights reserved.
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
 import logging
 import re
 
 from devil.utils import cmd_helper
 
 _COULDNT_OPEN_ERROR_RE = re.compile(r'Couldn\'t open device.*')
@@ skipping 69 matching lines @@
 def lsusb():
   """Call lsusb and return the parsed output."""
   _, lsusb_list_output = cmd_helper.GetCmdStatusAndOutputWithTimeout(
       ['lsusb'], timeout=2)
   devices = []
   for line in lsusb_list_output.splitlines():
     m = _LSUSB_BUS_DEVICE_RE.match(line)
     if m:
       bus_num = m.group(1)
       dev_num = m.group(2)
-      devices.append(_lsusbv_on_device(bus_num, dev_num))
+      try:
+        devices.append(_lsusbv_on_device(bus_num, dev_num))
+      except cmd_helper.TimeoutError:
+        # Will be blacklisted if it is in expected device file, but times out.
+        logging.info('lsusb -v %s:%s timed out.', bus_num, dev_num)
+
   return devices
 
 def get_lsusb_serial(device):
   try:
     return device['Device Descriptor']['iSerial']['_desc']
   except KeyError:
     return None
 
 def get_android_devices():
   return [serial for serial in (get_lsusb_serial(d) for d in lsusb())
           if serial]