meta-facebook/meta-bletchley/recipes-phosphor/chassis/obmc-phosphor-buttons/gpio_defs.json

{
        "gpio_definitions": [
            {
                "name": "POWER_BUTTON",
                "pin": "M7",
                "direction": "both"
            },
            {
                "name": "DEBUG_SELECTOR_BUTTON",
                "pin": "G3",
                "direction": "both"
            },
            {
                "name": "HOST_SELECTOR",
                "group_gpio_config" : [],
                "max_position" : 6,
                "host_selector_map" : {}
            }
        ]
}