当我运行时hcitool scan
,shell显示Scanning...
〜10秒,但未显示任何结果。
相同的 sudo hcitool scan
(我附近有一部Android手机和一台PC,并且已激活了蓝牙并将其设置为可见)
(它第一次起作用了;从那以后我什么都没改变)
系统规格
蓝牙适配器是Hama 00049229(手册)
芯片组:
Bus 001 Device 005: ID 0a5c:2121 Broadcom Corp. BCM2210 Bluetooth
hciconfig
显示:
hci0: Type: BR/EDR Bus: USB
BD Address: 00:0D:18:01:5A:B3 ACL MTU: 1017:8 SCO MTU: 64:0
UP RUNNING PSCAN
RX bytes:849 acl:0 sco:0 events:39 errors:0
TX bytes:420 acl:0 sco:0 commands:35 errors:0
(如Tim Holt所评论)
hcitool dev
显示:
Devices:
hci0 00:0D:18:01:5A:B3
(也正如蒂姆·霍尔特(Tim Holt)所说),
我跑hcidump --raw
了,扫描工具找到了附近所有的蓝牙设备。这是转储(我扫描了两次):
HCI sniffer - Bluetooth packet analyzer ver 2.4
device: hci0 snap_len: 1028 filter: 0xffffffff
< 01 01 04 05 33 8B 9E 08 00
> 04 0F 04 00 01 01 04
> 04 22 0F 01 65 FF 3D 83 15 00 01 00 04 01 12 BD 6B C9
> 04 22 0F 01 65 FF 3D 83 15 00 01 00 04 01 12 BD 6B C8
> 04 22 0F 01 65 FF 3D 83 15 00 01 00 04 01 12 BD 6B C9
> 04 22 0F 01 65 FF 3D 83 15 00 01 00 04 01 12 BD 6B C8
> 04 22 0F 01 65 FF 3D 83 15 00 01 00 04 01 12 BD 6B C8
> 04 22 0F 01 65 FF 3D 83 15 00 01 00 04 01 12 BD 6B CA
> 04 22 0F 01 65 FF 3D 83 15 00 01 00 04 01 12 BD 6B C7
> 04 22 0F 01 65 FF 3D 83 15 00 01 00 04 01 12 BD 6B C9
> 04 22 0F 01 65 FF 3D 83 15 00 01 00 04 01 12 BD 6B C7
> 04 22 0F 01 65 FF 3D 83 15 00 01 00 04 01 12 BD 6B C8
> 04 22 0F 01 65 FF 3D 83 15 00 01 00 04 01 12 BD 6B C5
> 04 22 0F 01 65 FF 3D 83 15 00 01 00 04 01 12 BD 6B CA
> 04 22 0F 01 65 FF 3D 83 15 00 01 00 04 01 12 BD 6B C5
> 04 22 0F 01 65 FF 3D 83 15 00 01 00 04 01 12 BD 6B C9
> 04 01 01 00
< 01 19 04 0A 65 FF 3D 83 15 00 01 00 BD EB
> 04 0F 04 00 01 19 04
> 04 07 FF 00 65 FF 3D 83 15 00 4D 69 63 68 69 73 2D 50 43 00
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
然后,一切再次恢复正常(中断)并hcidump --raw
显示:
HCI sniffer - Bluetooth packet analyzer ver 2.4
device: hci0 snap_len: 1028 filter: 0xffffffff
< 01 01 04 05 33 8B 9E 08 00
> 04 0F 04 00 01 01 04
> 04 01 01 00
dmesg | grep -i bluetooth
显示:
[ 5.875950] Bluetooth: Core ver 2.19
[ 6.000541] Bluetooth: HCI device and connection manager initialized
[ 6.202400] Bluetooth: HCI socket layer initialized
[ 6.209332] Bluetooth: L2CAP socket layer initialized
[ 6.586384] Bluetooth: SCO socket layer initialized
[ 29.059873] Bluetooth: BNEP (Ethernet Emulation) ver 1.3
[ 29.059914] Bluetooth: BNEP filters: protocol multicast
[ 29.059972] Bluetooth: BNEP socket layer initialized
[ 29.132785] Bluetooth: RFCOMM TTY layer initialized
[ 29.132869] Bluetooth: RFCOMM socket layer initialized
[ 29.132930] Bluetooth: RFCOMM ver 1.11
Raspberry Pi是Model B Rev2
已安装的软件包:
bluetooth
bluez-utils
bluez-compat
bluez-hcidump
“ hcitool dev”会给您带来什么?那应该列出您的设备。
—
蒂姆·霍尔特
另外,尝试在一个窗口中执行“ hcidump --raw”,然后在另一个窗口中进行“ hcitool扫描”-您应该在转储窗口中看到一些输出。
—
蒂姆·霍尔特
hcidump: command not found
-> 如何在Debian中找到包含程序的软件包?我知道该问题已作为一个重复项关闭,但可接受的答案是一个很好的答案,如果您单击重复的重复项,也可以根据需要检查这些答案。
由于它似乎间歇性地工作,可能是B无法提供足够的电源,尤其是如果您的电源小于2A时,因此该设备一直在发生故障。如果您拥有有源集线器,则可以在其中进行测试。
—
goldilocks
@goldilocks可悲的是我没有供电的集线器,并且PSU读取1.5A
—
gizmo