| bit | name | description |
|---|---|---|
| 0 | Problem has been detected | Defined in CarPlay section of MFi spec. Not seen set anywhere |
| 1 | Device is not configured | Defined in CarPlay section of MFi spec. Not seen set anywhere |
| 2 | Audio cable is attached | Defined in CarPlay section of MFi spec. Seen on AppleTV, Denon AVR, HomePod, Airport Express |
| 3 | PINRequired | |
| 4 | ??? | Not seen set anywhere |
| 5 | ??? | Not seen set anywhere |
| 6 | SupportsAirPlayFromCloud | |
| 7 | PasswordRequired | |
| 8 | ??? | Not seen set anywhere |
| 9 | OneTimePairingRequired | |
| 10 | DeviceWasSetupForHKAccessControl | |
| 11 | DeviceSupportsRelay | Shows in logs as relayable. When set iOS will connect to the device to get currently playing track. |
| 12 | SilentPrimary | |
| 13 | TightSyncIsGroupLeader | |
| 14 | TightSyncBuddyNotReachable | |
| 15 | IsAppleMusicSubscriber | Shows in logs as music |
| 16 | CloudLibraryIsOn | Shows in logs as iCML |
| 17 | ReceiverSessionIsActive | Shows in logs as airplay-receiving. Set when Apple TV is receiving anything via AirPlay. |
| 18 | ??? | Not seen set anywhere |
| 19 | ??? | Not seen set anywhere |