FanControl UI doesn't show when adding FanControl to room air conditioner (CON-1949)

[KevinLin724]

I am trying to add FanControl cluster to the air conditioner endpoint, but the control UI for fan control never shows in Apple Home app. Is there anything wrong with my settings? Is there a better way to add fan control to rac? thank you

`cluster::fan_control::config_t fan_config;
fan_config.fan_mode = 5;
fan_config.fan_mode_sequence = 2;

cluster_t *fan_cluster = cluster::fan_control::create(ac_endpoint, &fan_config, CLUSTER_FLAG_SERVER);

cluster::fan_control::feature::multi_speed::config_t ms_config;
ms_config.speed_max = 3;
ms_config.speed_setting = 1;
cluster::fan_control::feature::multi_speed::add(fan_cluster, &ms_config);`