# J2534

Open a Windows SAE J2534 PassThru adapter for raw CAN with `J2534Adapter`, or
use `J2534NativeIsoTP` for firmware-managed ISO-TP and reusable device handles.
The vendor DLL must match the Python process's architecture.

## Configuration

The configuration is shared by the async and sync APIs. `J2534Config()` discovers
the vendor DLL from the Windows registry and uses 500 kbit/s Classic CAN.

```{eval-rst}
.. autoclass:: automotive.adapters.J2534Config
   :members:
   :inherited-members:
   :undoc-members:
```

## Asynchronous API

### Raw CAN

Send, receive, and lifecycle methods are inherited from
{class}`automotive.adapters.CanAdapter`.

```{eval-rst}
.. autoclass:: automotive.adapters.J2534Adapter
   :show-inheritance:
```

### Native ISO-TP

```{eval-rst}
.. automodule:: automotive.adapters.j2534
   :members: J2534Device, J2534NativeIsoTP
   :inherited-members:
```

(sync-j2534)=
## Synchronous API

### Raw CAN

Blocking methods are inherited from {class}`automotive.sync.adapters.CanAdapter`.

```{eval-rst}
.. autoclass:: automotive.sync.adapters.J2534Adapter
   :show-inheritance:
```

### Native ISO-TP

`automotive.sync.adapters.j2534` exposes the same native transport and reusable
device handles with blocking calls. Its transport inherits send, receive, and
lifecycle methods from {class}`automotive.sync.transports.Transport`.

```{eval-rst}
.. autoclass:: automotive.sync.adapters.j2534.J2534NativeIsoTP
   :members: open, new_on_device, into_device, adapter_config

.. autoclass:: automotive.sync.adapters.j2534.J2534Device
   :members:
   :inherited-members:
```