gpiod_attr_init
gpiod_attr_init(&desc_data->dir_attr, "direction",
gpiod_attr_init(&desc_data->val_attr, "value", value_show, value_store);
gpiod_attr_init(&desc_data->edge_attr, "edge", edge_show, edge_store);
gpiod_attr_init(&desc_data->active_low_attr, "active_low",