driver.json

{
    "featureVersion": "0.1",
    "models": [
        "led-gpio"
    ],
    "inputs": {
        "gpio": {
            "type": "gpio",
            "args": {
                "direction": "out",
                "level": "low"
            },
            "features": {
                "output": [
                    "write"
                ]
            }
        }
    }
}