Ubuntu 12.04 蓝牙未搜索设备
dmesg | grep Blue
[ 11.005902] Bluetooth: Core ver 2.17
[ 11.005919] Bluetooth: HCI device and connection manager initialized
[ 11.005978] Bluetooth: HCI socket layer initialized
[ 11.006323] Bluetooth: L2CAP socket layer initialized
[ 11.006328] Bluetooth: SCO socket layer initialized
[ 11.387477] Bluetooth: can't load firmware, may not work correctly
[ 13.394719] Bluetooth: hci0 command 0x1003 tx timeout
[ 18.867503] Bluetooth: RFCOMM TTY layer initialized
[ 18.867515] Bluetooth: RFCOMM socket layer initialized
[ 18.867521] Bluetooth: RFCOMM ver 1.11
[ 19.461578] Bluetooth: BNEP (Ethernet Emulation) ver 1.3
[ 19.461582] Bluetooth: BNEP filters: protocol multicast
[ 19.461593] Bluetooth: BNEP socket layer initialized
使用 lsusb
lsusb
Bus 001 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub
Bus 002 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 001 Device 003: ID 0a5c:21d7 Broadcom Corp.
Bus 001 Device 004: ID 0c45:6473 Microdia
答案1
这将获取您的固件
wget https://www.dropbox.com/s/9ryy3ir1tby6wrf/fw-0a5c_21d7.hcd
sudo cp fw-0a5c_21d7.hcd /lib/firmware/
sudo cp fw-0a5c_21d7.hcd /lib/firmware/brcm/
sudo cp fw-0a5c_21d7.hcd /lib/firmware/brcm/BCM43142A0-0a5c-21d7.hcd
然后我们重新加载btusb模块
sudo modprobe -r btusb
sudo modprobe btusb
现在检查 dmesg 看看固件是否已加载或有错误
dmesg | tail
如果你的内核需要不同的文件名，这可能会显示另一个固件加载错误