Kona Linux Pi 2.0(Raspberry Pi) LDAC接続可否メモ

RaspberryPi
公式ドキュメント　Kona Linux Pi 2.0 MATE/Xfce/GNOME リリースノートを確認したら、BluetoothでLDAC接続可能との事だった。
 
しかし、32bit版では接続できなかった。
 
確認コマンド　32bit版

sudo /etc/init.d/bluetooth status
● bluetooth.service - Bluetooth service
     Loaded: loaded (/lib/systemd/system/bluetooth.service; enabled; vendor preset: enabled)
     Active: active (running) since Sun 2023-08-20 23:40:39 JST; 13h ago
       Docs: man:bluetoothd(8)
   Main PID: 953 (bluetoothd)
     Status: "Running"
      Tasks: 1 (limit: 4915)
        CPU: 131ms
     CGroup: /system.slice/bluetooth.service
             mq953 /usr/libexec/bluetooth/bluetoothd

 8月 20 23:40:39 raspberrypi systemd[1]: Started Bluetooth service.
 8月 20 23:40:39 raspberrypi bluetoothd[953]: Starting SDP server
 8月 20 23:40:39 raspberrypi bluetoothd[953]: Bluetooth management interface 1.18 initialized
 8月 20 23:40:40 raspberrypi bluetoothd[953]: profiles/sap/server.c:sap_server_register() Sap driver initialization failed.
 8月 20 23:40:40 raspberrypi bluetoothd[953]: sap-server: Operation not permitted (1)
 8月 20 23:40:40 raspberrypi bluetoothd[953]: Failed to set privacy: Rejected (0x0b)
 8月 20 23:40:45 raspberrypi bluetoothd[953]: Endpoint registered: sender=:1.32 path=/MediaEndpoint/A2DPSink/sbc
 8月 20 23:40:45 raspberrypi bluetoothd[953]: Endpoint registered: sender=:1.32 path=/MediaEndpoint/A2DPSource/sbc
 8月 20 23:40:53 raspberrypi bluetoothd[953]: Endpoint unregistered: sender=:1.32 path=/MediaEndpoint/A2DPSink/sbc
 8月 20 23:40:53 raspberrypi bluetoothd[953]: Endpoint unregistered: sender=:1.32 path=/MediaEndpoint/A2DPSource/sbc

 
64bit版

sudo /etc/init.d/bluetooth status
● bluetooth.service - Bluetooth service
     Loaded: loaded (/lib/systemd/system/bluetooth.service; enabled; vendor preset: enabled)
     Active: active (running) since Sun 2023-08-20 23:42:24 JST; 13h ago
       Docs: man:bluetoothd(8)
   Main PID: 914 (bluetoothd)
     Status: "Running"
      Tasks: 1 (limit: 629145)
        CPU: 277ms
     CGroup: /system.slice/bluetooth.service
             mq914 /usr/libexec/bluetooth/bluetoothd

 8月 20 23:42:33 raspberrypi bluetoothd[914]: Endpoint registered: sender=:1.32 path=/MediaEndpoint/A2DPSink/SBC
 8月 20 23:42:40 raspberrypi bluetoothd[914]: Endpoint unregistered: sender=:1.32 path=/MediaEndpoint/A2DPSource/VENDOR/LDAC
 8月 20 23:42:40 raspberrypi bluetoothd[914]: Endpoint unregistered: sender=:1.32 path=/MediaEndpoint/A2DPSource/VENDOR/APTXHD
 8月 20 23:42:40 raspberrypi bluetoothd[914]: Endpoint unregistered: sender=:1.32 path=/MediaEndpoint/A2DPSource/VENDOR/APTX
 8月 20 23:42:40 raspberrypi bluetoothd[914]: Endpoint unregistered: sender=:1.32 path=/MediaEndpoint/A2DPSource/AAC
 8月 20 23:42:40 raspberrypi bluetoothd[914]: Endpoint unregistered: sender=:1.32 path=/MediaEndpoint/A2DPSource/SBC
 8月 20 23:42:40 raspberrypi bluetoothd[914]: Endpoint unregistered: sender=:1.32 path=/MediaEndpoint/A2DPSink/VENDOR/APTXHD
 8月 20 23:42:40 raspberrypi bluetoothd[914]: Endpoint unregistered: sender=:1.32 path=/MediaEndpoint/A2DPSink/VENDOR/APTX
 8月 20 23:42:40 raspberrypi bluetoothd[914]: Endpoint unregistered: sender=:1.32 path=/MediaEndpoint/A2DPSink/AAC
 8月 20 23:42:40 raspberrypi bluetoothd[914]: Endpoint unregistered: sender=:1.32 path=/MediaEndpoint/A2DPSink/SBC

・LDAC・APTXHD・AACも使用可能
 
32bit版ではSBCしか使えない模様、Linuxの制限なのかな？
現在の使用環境（softether・kodi）ではメモリ使用量でも大きな差はないので64bitにしてLDACが使用できる方が良さげ。