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1. Bluetooth daemon (Bluez based) - Interacts with kernel layer bluetooth modules
2. Bt-Ifce - (Abstracts Bluez versions and servers as a HAL for other Bluetooth stacks) - Interacts with Bluez over DBus
3. Bluetooth HAL (BTRCore) - Provide API to perform Bluetooth operations by abstracting and simplifying the complexities of Bt-Ifce (& BLuez)
4. BTRMgr -  Utilize API's exposed by BTRCore to perform high level Bluetooth ops like Scan, Pair, Connect and achieve usecases like AudioOut. 
                       Exposes interfaces for external entities to perform BTRMgr related operation using IARM
5. ServiceManager [BluetoothService] - Interacts with BTRMgr based on Application requirements using IARM. Guide applications are interact with Service Manager.

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Contains Methods and Events to communicate with the Bluetooth manager
Service Manager will send event in case external Bluetooth adapter is inserted or removed, or it is requested for pairing.

Service Manager –Bluetooth (Methods Details)

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Bluetooth –Service Manager Events

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List of API & Events

Refer to Bluetooth APIs for a complete list of Bluetooth APIs and events exposed by service manager.

Bluetooth Manager (BTRMgr)

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