[ 3698.532332] usb 1-6: Product: Bluetooth Radio
[ 3698.535152] Bluetooth: hci0: RTL: examining hci_ver=0a hci_rev=000b lmp_ver=0a lmp_subver=8761
[ 3698.536164] Bluetooth: hci0: RTL: rom_version status=0 version=1
[ 3698.536166] Bluetooth: hci0: RTL: loading rtl_bt/rtl8761bu_fw.bin
[ 3698.537902] Bluetooth: hci0: RTL: loading rtl_bt/rtl8761bu_config.bin
[ 3698.537949] Bluetooth: hci0: RTL: cfg_sz 6, total sz 30210
[ 3698.685274] Bluetooth: hci0: RTL: fw version 0xdfc6d922
[ 3698.752395] Bluetooth: MGMT ver 1.22