我有一台 nuvision 平板电脑，但我不知道如何让蓝牙工作。我觉得这可能与蓝牙地址有关？有谁知道解决办法吗？因为我对 ubuntu 和 linux 还不熟悉。以下是我能收集到的所有信息。
hci0: Type: Primary Bus: UART
BD Address: AA:AA:AA:AA:AA:AA ACL MTU: 1021:8 SCO MTU: 64:1
UP RUNNING PSCAN ISCAN
RX bytes:7742 acl:0 sco:0 events:661 errors:0
TX bytes:11959 acl:0 sco:0 commands:606 errors:0
Features: 0xbf 0xfe 0xcf 0xfe 0xdb 0xff 0x7b 0x87
Packet type: DM1 DM3 DM5 DH1 DH3 DH5 HV1 HV2 HV3
Link policy: RSWITCH SNIFF
Link mode: SLAVE ACCEPT
Name: 'poketab'
Class: 0x1c0104
Service Classes: Rendering, Capturing, Object Transfer
Device Class: Computer, Desktop workstation
HCI Version: 4.1 (0x7) Revision: 0x0
LMP Version: 4.1 (0x7) Subversion: 0x2122
Manufacturer: Broadcom Corporation (15)
~$ bluetoothd -v
5.50
~$ lspci -knn | grep Net -A3; lsusb
Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 001 Device 004: ID 0101:0007
Bus 001 Device 003: ID 1a2c:0002 China Resource Semico Co., Ltd
Bus 001 Device 002: ID 05e3:0608 Genesys Logic, Inc. Hub
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
~$ dmesg | grep -i blue
[ 5.411742] Bluetooth: Core ver 2.22
[ 5.411794] Bluetooth: HCI device and connection manager initialized
[ 5.411803] Bluetooth: HCI socket layer initialized
[ 5.411807] Bluetooth: L2CAP socket layer initialized
[ 5.411823] Bluetooth: SCO socket layer initialized
[ 5.482040] Bluetooth: HCI UART driver ver 2.3
[ 5.482045] Bluetooth: HCI UART protocol H4 registered
[ 5.482047] Bluetooth: HCI UART protocol BCSP registered
[ 5.482127] Bluetooth: HCI UART protocol LL registered
[ 5.482130] Bluetooth: HCI UART protocol ATH3K registered
[ 5.482132] Bluetooth: HCI UART protocol Three-wire (H5) registered
[ 5.482253] Bluetooth: HCI UART protocol Intel registered
[ 5.483251] Bluetooth: HCI UART protocol Broadcom registered
[ 5.483305] Bluetooth: HCI UART protocol QCA registered
[ 5.483308] Bluetooth: HCI UART protocol AG6XX registered
[ 5.483310] Bluetooth: HCI UART protocol Marvell registered
[ 5.522391] Bluetooth: hci0: BCM: failed to write clock (-56)
[ 5.522401] Bluetooth: hci0: Failed to set baudrate
[ 5.647291] Bluetooth: hci0: BCM: chip id 94
[ 5.651881] Bluetooth: hci0: BCM: features 0x2e
[ 5.675326] Bluetooth: hci0: 4343A0
[ 5.675337] Bluetooth: hci0: BCM4343A0 (001.001.034) build 0000
[ 5.763779] bluetooth hci0: Direct firmware load for brcm/BCM4343A0.hcd failed with error -2
[ 5.763789] Bluetooth: hci0: BCM: Patch brcm/BCM4343A0.hcd not found
[ 9.769036] Bluetooth: BNEP (Ethernet Emulation) ver 1.3
[ 9.769040] Bluetooth: BNEP filters: protocol multicast
[ 9.769050] Bluetooth: BNEP socket layer initialized
[ 13.773243] audit: type=1400 audit(1551680978.039:62): apparmor="DENIED" operation="create" profile="snap.bluez.bluez" pid=1344 comm="bluetoothd" family="bluetooth" sock_type="raw" protocol=1 requested_mask="create" denied_mask="create"
[ 13.775195] audit: type=1400 audit(1551680978.039:63): apparmor="DENIED" operation="connect" profile="snap.bluez.bluez" name="/run/dbus/system_bus_socket" pid=1344 comm="bluetoothd" requested_mask="wr" denied_mask="wr" fsuid=0 ouid=0
[ 13.921521] audit: type=1400 audit(1551680978.187:64): apparmor="DENIED" operation="connect" profile="snap.bluez.obex" name="/run/dbus/system_bus_socket" pid=1386 comm="obexd" requested_mask="wr" denied_mask="wr" fsuid=0 ouid=0
[ 14.085860] audit: type=1400 audit(1551680978.351:65): apparmor="DENIED" operation="create" profile="snap.bluez.bluez" pid=1423 comm="bluetoothd" family="bluetooth" sock_type="raw" protocol=1 requested_mask="create" denied_mask="create"
[ 14.087265] audit: type=1400 audit(1551680978.351:66): apparmor="DENIED" operation="connect" profile="snap.bluez.bluez" name="/run/dbus/system_bus_socket" pid=1423 comm="bluetoothd" requested_mask="wr" denied_mask="wr" fsuid=0 ouid=0
[ 19.789900] Bluetooth: RFCOMM TTY layer initialized
[ 19.789917] Bluetooth: RFCOMM socket layer initialized
[ 19.789935] Bluetooth: RFCOMM ver 1.11
答案1
在终端尝试
https://gitlab.com/TeeFirefly/FireNow-Marshmallow/blob/061bdfd4bdd7cce2fe55e1013f3d3f23de7603ca/vendor/rockchip/common/bluetooth/lib/firmware/4343A0.hcd
sudo cp 43430A0.hcd /lib/firmware/brcm/