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CSR dongles have the USB ID and mac address

rabee05rabee05
in JavaScript

When I run hciconfig

hci2: Type: Primary Bus: USB
BD Address: 00:1A:7D:DA:71:13 ACL MTU: 310:10 SCO MTU: 64:8
UP RUNNING
RX bytes:12768602 acl:0 sco:0 events:483401 errors:0
TX bytes:24427 acl:0 sco:0 commands:3105 errors:0

hci1: Type: Primary Bus: USB
BD Address: 00:1A:7D:DA:71:13 ACL MTU: 310:10 SCO MTU: 64:8
UP RUNNING
RX bytes:1154 acl:0 sco:0 events:61 errors:0
TX bytes:987 acl:0 sco:0 commands:61 errors:0

hci0: Type: Primary Bus: USB
BD Address: 00:1A:7D:DA:71:13 ACL MTU: 310:10 SCO MTU: 64:8
UP RUNNING
RX bytes:1734 acl:0 sco:0 events:92 errors:0
TX bytes:1606 acl:0 sco:0 commands:92 errors:0

same USB IDs

Bus 002 Device 007: ID 0a12:0001 Cambridge Silicon Radio, Ltd Bluetooth Dongle (HCI mode)
Bus 002 Device 005: ID 0a12:0001 Cambridge Silicon Radio, Ltd Bluetooth Dongle (HCI mode)
Bus 002 Device 003: ID 0a12:0001 Cambridge Silicon Radio, Ltd Bluetooth Dongle (HCI mode)

however hcitool and hicconfig are deprecated, but what I use bluetoothctl list, I only get one adaptor

Controller 00:1A:7D:DA:71:13 [default]

any idea why all dongles has same address. is this normal? the issue I cannot bring the dongle up without hciconfig and trying to use bluetoothctl as it is the official tool.

Comments

  • LauraLaura

    It is normal for them to have the same address which is a bit of a pain depending on which os/language you work with.
    You might need to get two dongles from different manufacturers for your app.

  • rabee05rabee05

    @Laura thank you. Do you recommend a manufacturers that work on your hub? I do not see an issue using noble as it using HCI sockets, but having 2 dongles with same address, only one dongle will be seen by the dbus. I tried to use ble communications via d-bus APIs instead of noble(hci) so I ran into this issue. I can change one of the dongle address temporally, but I have to keep changing the address every time I unplug it.

  • jadestonejadestone

    @rabee05 said:
    I can change one of the dongle address temporally, but I have to keep changing the address every time I unplug it.

    How did you change the address? I tried to use bdaddr but it did not work.

  • LauraLaura

    @rabee05, it's just a raspberry pi so any linux dongle that works on a pi will do. There's lots of websites on this subject: https://forbiddenbroadway.com/raspberry-pi-bluetooth-dongle/
    Personally I just go on amazon and find something cheap with decent reviews.

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