ASUSWRT component doesn't accept telnet protocol anymore

[ardzeus]

Home Assistant release (hass --version):
0.27.0

Python release (python3 --version):
3.4.2

Component/platform:
ASUSWRT

Description of problem:
ASUSWRT component doesn't accept telnet protocol anymore

Expected:

Problem-relevant configuration.yaml entries and steps to reproduce:

device_tracker:
   platform: asuswrt
   host: 192.168.1.2
   track_new_devices: no
   protocol: telnet
   username: username
   password: password
   consider_home: 600

Traceback (if applicable):

16-08-28 16:03:26 INFO (MainThread) [homeassistant.loader] Loaded device_tracker.asuswrt from homeassistant.components.device_tracker.asuswrt
16-08-28 16:03:26 ERROR (MainThread) [homeassistant.bootstrap] Invalid config for [device_tracker.asuswrt]: expected a list for dictionary value @ data['protocol']. Got 'telnet'

Additional info:

[Danielhiversen]

You can try to change this line https://github.com/home-assistant/home-assistant/blob/dev/homeassistant/components/device_tracker/asuswrt.py#L37
to vol.In(['ssh', 'telnet']),

[fanaticDavid]

It doesn't accept SSH either. And it no longer accepts the mode...

16-08-28 16:55:11 homeassistant.bootstrap: Invalid config for [device_tracker.asuswrt]: expected a list for dictionary value @ data['mode']. Got 'router'
expected a list for dictionary value @ data['protocol']. Got 'ssh'

My config:

- platform: asuswrt
  host: !env_var TRACKER_ASUSWRT_HOST
  protocol: ssh
  mode: router
  username: !env_var TRACKER_ASUSWRT_USERNAME
  password: !env_var TRACKER_ASUSWRT_PASSWORD
  track_new_devices: no
  home_interval: 10
  consider_home: 600

So https://github.com/home-assistant/home-assistant/blob/dev/homeassistant/components/device_tracker/asuswrt.py#L39 may need the same fix.