aioblescan can't find HCI device

[Nighthawk79]

Hello,

since i've updated my Ubuntu from 21.10 to 22.04, aiovlescan is not functional anymore.

The error i'm getting is

#aioblescan -m 50:FB:19:4E:77:7C Traceback (most recent call last): File "/usr/local/bin/aioblescan", line 33, in <module> sys.exit(load_entry_point('aioblescan==0.2.13', 'console_scripts', 'aioblescan')()) File "/usr/local/lib/python3.10/dist-packages/aioblescan-0.2.13-py3.10.egg/aioblescan/__main__.py", line 176, in main mysocket = aiobs.create_bt_socket(opts.device) File "/usr/local/lib/python3.10/dist-packages/aioblescan-0.2.13-py3.10.egg/aioblescan/aioblescan.py", line 1760, in create_bt_socket raise exceptions[0] OSError: [Errno 19] error while attempting to bind on interface 0: No such device

The HCI Device is functional:

#hcitool dev Devices: hci1 E8:48:B8:C8:20:00

and for example hcitool lescan is working properly:

#sudo hcitool lescan LE Scan ... 18:93:7F:F2:AD:42 (unknown) 18:93:7F:F2:AD:42 Somfy Outdoor 0076B10826E4 00:7C:2D:C3:E3:9F (unknown) 61:0C:47:C5:90:58 (unknown) 54:D2:72:79:44:0C (unknown) 61:0C:47:C5:90:58 nut 50:FB:19:4E:77:7C MIBFS 61:0C:47:C5:90:58 (unknown) 50:FB:19:4E:77:7C (unknown) 50:FB:19:4E:77:7C MIBFS F0:50:63:D4:E4:11 (unknown) F0:50:63:D4:E4:11 Mi Smart Band 5 32:24:A9:6C:2A:72 (unknown) 32:24:A9:6C:2A:72 (unknown)

#dmesg | grep Blue [ 8.412679] Bluetooth: Core ver 2.22 [ 8.412714] Bluetooth: HCI device and connection manager initialized [ 8.412720] Bluetooth: HCI socket layer initialized [ 8.412724] Bluetooth: L2CAP socket layer initialized [ 8.412730] Bluetooth: SCO socket layer initialized [ 8.530612] Bluetooth: hci0: RTL: examining hci_ver=0a hci_rev=000b lmp_ver=0a lmp_subver=8761 [ 8.531562] Bluetooth: hci0: RTL: rom_version status=0 version=1 [ 8.531567] Bluetooth: hci0: RTL: loading rtl_bt/rtl8761bu_fw.bin [ 8.533610] Bluetooth: hci0: RTL: loading rtl_bt/rtl8761bu_config.bin [ 8.533804] Bluetooth: hci0: RTL: cfg_sz 6, total sz 27814 [ 8.675581] Bluetooth: hci0: RTL: fw version 0x09a98a6b [ 11.074229] Bluetooth: BNEP (Ethernet Emulation) ver 1.3 [ 11.074235] Bluetooth: BNEP filters: protocol multicast [ 11.074242] Bluetooth: BNEP socket layer initialized [ 12.795945] Bluetooth: RFCOMM TTY layer initialized [ 12.795955] Bluetooth: RFCOMM socket layer initialized [ 12.795964] Bluetooth: RFCOMM ver 1.11 [50015.919166] Bluetooth: hci1: RTL: examining hci_ver=0a hci_rev=000b lmp_ver=0a lmp_subver=8761 [50015.920153] Bluetooth: hci1: RTL: rom_version status=0 version=1 [50015.920161] Bluetooth: hci1: RTL: loading rtl_bt/rtl8761bu_fw.bin [50015.920309] Bluetooth: hci1: RTL: loading rtl_bt/rtl8761bu_config.bin [50015.920382] Bluetooth: hci1: RTL: cfg_sz 6, total sz 27814 [50016.059153] Bluetooth: hci1: RTL: fw version 0x09a98a6b

How can i solve the problem?

[frawau]

You really should read the error message.

It shows  "interface 0: No such device"

And when you show hcitool works it shows hcitool dev Devices: hci1 E8:48:B8:C8:20:00

0 == hci0 vs hci1

If you had used aioblescan -h

You would have seen -D DEVICE, --device DEVICE Select the hciX device to use (default 0, i.e. hci0).

Try -D 1

[Nighthawk79]

You are absolutely right, i thought it selects the device automatically. Unfortunately if i start aioblescan -D 1, i don't get any messages.

[frawau]

It works for me on Kubuntu 22.04. Make sure you run as root to avoid permission issues sudo aioblescan -D 1 ....

[Nighthawk79]

oh, got it now, it works with root.