def GetBattorSerialNumbers(device_tree_map):
for x in find_usb_devices.GetTTYList():
if IsBattor(x, device_tree_map):
(bus, device) = find_usb_devices.GetBusDeviceFromTTY(x)
devnode = device_tree_map[bus].FindDeviceNumber(device)
yield devnode.serial
def GetBattorList(device_tree_map):
return [x for x in find_usb_devices.GetTTYList()
if IsBattor(x, device_tree_map)]