查看设备号为0bda:a725 的USB蓝牙5.0接收设备可用本驱动程序
$lsusb
...
0bda:a725 Realtek Semiconductor Corp. Bluetooth Radio
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用下面命令可安装
sudo make install INTERFACE=usb
hciconfig -a 查看设备，如下：
$ hciconfig -a
hci0: Type: Primary Bus: USB
BD Address: 00:xx:00:00:00:00 ACL MTU: 1021:5 SCO MTU: 255:11
UP RUNNING
RX bytes:1796577 acl:75811 sco:0 events:5973 errors:0
TX bytes:15333 acl:120 sco:0 commands:962 errors:0
Features: 0xff 0xff 0xff 0xfe 0xdb 0xfd 0x7b 0x87
Packet type: .
...
