┌─────────────────────────────────────┐
│ Upper Stack (BlueZ/自定义) │
└─────────────────┬───────────────────┘
│ HCI (sockets/raw)
┌─────────────────▼───────────────────┐
│ jqbt Core API │
├───────────────────────────────────────┤
│ - Command queue manager │
│ - Event dispatcher │
│ - ACL/SCO data scheduler │
├───────────────────────────────────────┤
│ Transport Abstraction │
│ (UART, USB, SDIO, Virtual) │
└─────────────────┬───────────────────┘
│ Physical bus
┌─────────────────▼───────────────────┐
│ Bluetooth Controller (FW/HW) │
└───────────────────────────────────────┘
Realtek drivers are the most common for devices branded as JQBT.
RTL8761B Bluetooth USB Dongle Driver.1. The device shows up as "Unknown Device" and won't install. jqbt bluetooth driver
2. Bluetooth is turned off / Icon missing. Realtek drivers are the most common for devices
3. "Error 43" in Device Manager.
4. Can connect audio but sound quality is bad. Recommended Alternative: If you cannot find it on