Support request for Gymstick GB6.0 bike

[s1shed]

https://www.gymstick.com/gb-6-0-exercise-bike.html

The sensors are detected, but some controls (such as resistance level) are not. I see buttons for pause, reset, start_resume, and stop as well as a switch for connection.

It's advertised as being Kinomap and Zwift compatible, so I'm assuming it should be possible to support this.

❯ python -m pyftms
Scanning for available FTMS devices...
1. INDOOR_BIKE: name: FS-F716FE, address: 69:9E:AB:35:D2:3D

Connection to INDOOR_BIKE: name: FS-F716FE, address: 69:9E:AB:35:D2:3D
A message handler raised an exception: 'IndoorBike' object has no attribute '_cli'
Traceback (most recent call last):
  File "src/dbus_fast/message_bus.py", line 819, in dbus_fast.message_bus.BaseMessageBus._process_message
  File "/home/user/.virtualenvs/pyftms/lib/python3.13/site-packages/bleak/backends/bluezdbus/manager.py", line 1121, in _parse_msg
    watcher.on_connected_changed(new_connected)
    ~~~~~~~~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^
  File "/home/user/.virtualenvs/pyftms/lib/python3.13/site-packages/bleak/backends/bluezdbus/client.py", line 183, in on_connected_changed
    self._disconnected_callback()
    ~~~~~~~~~~~~~~~~~~~~~~~~~~~^^
  File "/home/user/.virtualenvs/pyftms/lib/python3.13/site-packages/pyftms/client/client.py", line 245, in _on_disconnect
    del self._cli
        ^^^^^^^^^
AttributeError: 'IndoorBike' object has no attribute '_cli'
 1. Device Info: {'manufacturer': 'FITSHOW', 'model': 'FS-BT-D2', 'sw_version': '1.1.7', 'hw_version': '1.0'}
 2. Supported settings: []
 3. Supported ranges: {}
 4. Supported properties: ['speed_instant', 'distance_total', 'energy_total', 'energy_per_hour', 'energy_per_minute', 'heart_rate', 'time_elapsed', 'training_status']
 5. Available properties: ['speed_instant', 'speed_average', 'cadence_instant', 'cadence_average', 'distance_total', 'resistance_level', 'power_instant', 'power_average', 'energy_total', 'energy_per_hour', 'energy_per_minute', 'heart_rate', 'metabolic_equivalent', 'time_elapsed', 'time_remaining', 'training_status']
Traceback (most recent call last):
  File "<frozen runpy>", line 198, in _run_module_as_main
  File "<frozen runpy>", line 88, in _run_code
  File "/home/user/.virtualenvs/pyftms/lib/python3.13/site-packages/pyftms/__main__.py", line 36, in <module>
    asyncio.run(run())
    ~~~~~~~~~~~^^^^^^^
  File "/usr/lib/python3.13/asyncio/runners.py", line 195, in run
    return runner.run(main)
           ~~~~~~~~~~^^^^^^
  File "/usr/lib/python3.13/asyncio/runners.py", line 118, in run
    return self._loop.run_until_complete(task)
           ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^^^^^^
  File "/usr/lib/python3.13/asyncio/base_events.py", line 725, in run_until_complete
    return future.result()
           ~~~~~~~~~~~~~^^
  File "/home/user/.virtualenvs/pyftms/lib/python3.13/site-packages/pyftms/__main__.py", line 26, in run
    async with get_client(dev, machine_type) as c:
               ~~~~~~~~~~^^^^^^^^^^^^^^^^^^^
  File "/home/user/.virtualenvs/pyftms/lib/python3.13/site-packages/pyftms/client/client.py", line 109, in __aexit__
    await self.disconnect()
  File "/home/user/.virtualenvs/pyftms/lib/python3.13/site-packages/pyftms/client/client.py", line 176, in disconnect
    await self._cli.disconnect()
  File "/home/user/.virtualenvs/pyftms/lib/python3.13/site-packages/bleak/__init__.py", line 631, in disconnect
    await self._backend.disconnect()
  File "/home/user/.virtualenvs/pyftms/lib/python3.13/site-packages/bleak/backends/bluezdbus/client.py", line 452, in disconnect
    reply = await self._bus.call(
            ^^^^^^^^^^^^^^^^^^^^^
    ...<6 lines>...
    )
    ^
  File "/home/user/.virtualenvs/pyftms/lib/python3.13/site-packages/dbus_fast/aio/message_bus.py", line 409, in call
    await future
  File "src/dbus_fast/aio/message_reader.py", line 25, in dbus_fast.aio.message_reader._message_reader
  File "src/dbus_fast/_private/unmarshaller.py", line 870, in dbus_fast._private.unmarshaller.Unmarshaller._unmarshall
  File "src/dbus_fast/_private/unmarshaller.py", line 734, in dbus_fast._private.unmarshaller.Unmarshaller._read_header
  File "src/dbus_fast/_private/unmarshaller.py", line 455, in dbus_fast._private.unmarshaller.Unmarshaller._read_to_pos
  File "src/dbus_fast/_private/unmarshaller.py", line 395, in dbus_fast._private.unmarshaller.Unmarshaller._read_sock_with_fds
EOFError

Please let me know if I can provide any other info.

[s1shed]

I found a fitshow app and the resistance needs to be changed on the bike itself. It isn't automatically done, so what I ultimately wanted might indeed not be doable.

I'll keep this open because of the crash (which I also saw in HA).