dimaska@REDMI:~$ rfkill list
0: hci0: Bluetooth
Soft blocked: no
Hard blocked: no
1: phy0: Wireless LAN
Soft blocked: no
Hard blocked: no
dimaska@REDMI:~$ lsusb
Bus 004 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 003 Device 003: ID 2717:5013 Xiaomi Inc. Mi Wireless Mouse
Bus 003 Device 002: ID 27c6:581a Shenzhen Goodix Technology Co.,Ltd. FingerPrint
Bus 003 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 001 Device 003: ID 0cb8:c549 Opticis Co., Ltd Bluetooth Radio
Bus 001 Device 002: ID 1bcf:2cdd Sunplus Innovation Technology Inc. XiaoMi USB 2.0 Webcam
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
dimaska@REDMI:~$ bluetoothctl list
Controller 14:5A:FC:6B:75:C6 REDMI [default]
dimaska@REDMI:~$ lsmod | grep btusb
btusb 61440 0
btrtl 24576 1 btusb
btbcm 24576 1 btusb
btintel 45056 1 btusb
btmtk 16384 1 btusb
bluetooth 827392 46 btrtl,btmtk,btintel,btbcm,bnep,btusb,rfcomm
dimaska@REDMI:~$ sudo dmesg | grep -i bluetooth
[sudo] password for dimaska:
[ 1.711283] usb 1-4: Product: Bluetooth Radio
[ 2.864480] Bluetooth: Core ver 2.22
[ 2.864498] NET: Registered PF_BLUETOOTH protocol family
[ 2.864499] Bluetooth: HCI device and connection manager initialized
[ 2.864501] Bluetooth: HCI socket layer initialized
[ 2.864502] Bluetooth: L2CAP socket layer initialized
[ 2.864505] Bluetooth: SCO socket layer initialized
[ 4.240051] Bluetooth: BNEP (Ethernet Emulation) ver 1.3
[ 4.240055] Bluetooth: BNEP filters: protocol multicast
[ 4.240059] Bluetooth: BNEP socket layer initialized
[ 4.348840] Bluetooth: RFCOMM TTY layer initialized
[ 4.348848] Bluetooth: RFCOMM socket layer initialized
[ 4.348853] Bluetooth: RFCOMM ver 1.11