Re: [Bluez-users] Targus ACB20EU: Scan times out

[Marcel Holtmann <marcel@holtmann.org>]

Hi Arthur,

> Scanning for other devices with the Targus ACB20EU USB dongle (a 
> bluetooth 2.0 adapter with EDR support according to the packaging) 
> always times out. It doesn't help to run hcid or hciconfig hci0 up 
> beforehand. This is how it looks like:
> 
> # hcitool scan
> Scanning ...
> Inquiry failed: Connection timed out
> 
> Running hcidump -X -V at the same time only yields this output:
> 
> # hcidump -X -V
> HCI sniffer - Bluetooth packet analyzer ver 1.32
> device: hci0 snap_len: 1028 filter: 0xffffffff 
> < HCI Command: Inquiry (0x01|0x0001) plen 5
>      lap 0x9e8b33 len 8 num 0
>  > HCI Event: Command Complete (0x0e) plen 4
>      Inquiry (0x01|0x0001) ncmd 1
>      0000: 0c

this is a broken chip anyway. The failure of HCI_Inquiry must be
answered with a HCI_Command_Status event and not a HCI_Command_Complete
event.

Is this another Broadcom based dongle?

Try loading the hci_usb with "reset=1" and post the content
of /proc/bus/usb/devices.

Regards

Marcel



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