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

[Arthur <avandorp@gmail.com>]

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Hi Marcel

> 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.


A thousand thanks for your answer. Yes, now I can see that it's a Broadcom
BCM2045B2.
What's up with the "reset=1" parameter? I've now successfully paired it with
a Nokia BH-300 Headset and have it working with the btsco tools. :)
Wonderful.

Again, many thanks.

Regards

Arthur


For reference some data from /proc/bus/usb/devices and hciconfig -a:

# modprobe hci_usb reset=1
# cat /proc/bus/usb/devices
[... other devices ...]

T:  Bus=01 Lev=01 Prnt=01 Port=01 Cnt=01 Dev#=  6 Spd=12  MxCh= 3
D:  Ver= 2.00 Cls=09(hub  ) Sub=00 Prot=00 MxPS= 8 #Cfgs=  1
P:  Vendor=0a5c ProdID=4500 Rev= 1.00
S:  Manufacturer=Broadcom
S:  Product=BCM2045B2
C:* #Ifs= 1 Cfg#= 1 Atr=a0 MxPwr=100mA
I:  If#= 0 Alt= 0 #EPs= 1 Cls=09(hub  ) Sub=00 Prot=00 Driver=hub
E:  Ad=81(I) Atr=03(Int.) MxPS=   1 Ivl=255ms

T:  Bus=01 Lev=02 Prnt=06 Port=00 Cnt=01 Dev#=  7 Spd=12  MxCh= 0
D:  Ver= 2.00 Cls=e0(unk. ) Sub=01 Prot=01 MxPS=64 #Cfgs=  1
P:  Vendor=0a5c ProdID=2100 Rev= 1.00
S:  Manufacturer=Broadcom Corp
S:  Product=BCM92045DG-Flash_UHE
C:* #Ifs= 4 Cfg#= 1 Atr=a0 MxPwr=  0mA
I:  If#= 0 Alt= 0 #EPs= 3 Cls=e0(unk. ) Sub=01 Prot=01 Driver=hci_usb
E:  Ad=81(I) Atr=03(Int.) MxPS=  16 Ivl=1ms
E:  Ad=82(I) Atr=02(Bulk) MxPS=  64 Ivl=0ms
E:  Ad=02(O) Atr=02(Bulk) MxPS=  64 Ivl=0ms
I:  If#= 1 Alt= 0 #EPs= 2 Cls=e0(unk. ) Sub=01 Prot=01 Driver=hci_usb
E:  Ad=83(I) Atr=01(Isoc) MxPS=   0 Ivl=1ms
E:  Ad=03(O) Atr=01(Isoc) MxPS=   0 Ivl=1ms
I:  If#= 1 Alt= 1 #EPs= 2 Cls=e0(unk. ) Sub=01 Prot=01 Driver=hci_usb
E:  Ad=83(I) Atr=01(Isoc) MxPS=   9 Ivl=1ms
E:  Ad=03(O) Atr=01(Isoc) MxPS=   9 Ivl=1ms
I:  If#= 1 Alt= 2 #EPs= 2 Cls=e0(unk. ) Sub=01 Prot=01 Driver=hci_usb
E:  Ad=83(I) Atr=01(Isoc) MxPS=  17 Ivl=1ms
E:  Ad=03(O) Atr=01(Isoc) MxPS=  17 Ivl=1ms
I:  If#= 1 Alt= 3 #EPs= 2 Cls=e0(unk. ) Sub=01 Prot=01 Driver=hci_usb
E:  Ad=83(I) Atr=01(Isoc) MxPS=  32 Ivl=1ms
E:  Ad=03(O) Atr=01(Isoc) MxPS=  32 Ivl=1ms
I:  If#= 1 Alt= 4 #EPs= 2 Cls=e0(unk. ) Sub=01 Prot=01 Driver=hci_usb
E:  Ad=83(I) Atr=01(Isoc) MxPS=  64 Ivl=1ms
E:  Ad=03(O) Atr=01(Isoc) MxPS=  64 Ivl=1ms
I:  If#= 1 Alt= 5 #EPs= 2 Cls=e0(unk. ) Sub=01 Prot=01 Driver=hci_usb
E:  Ad=83(I) Atr=01(Isoc) MxPS=  64 Ivl=1ms
E:  Ad=03(O) Atr=01(Isoc) MxPS=  64 Ivl=1ms
I:  If#= 2 Alt= 0 #EPs= 2 Cls=ff(vend.) Sub=ff Prot=ff Driver=(none)
E:  Ad=84(I) Atr=02(Bulk) MxPS=  32 Ivl=0ms
E:  Ad=04(O) Atr=02(Bulk) MxPS=  32 Ivl=0ms
I:  If#= 3 Alt= 0 #EPs= 0 Cls=fe(app. ) Sub=01 Prot=00 Driver=(none)

# hciconfig -a
hci0:   Type: USB
        BD Address: 00:16:38:3A:63:5E ACL MTU: 1017:8 SCO MTU: 64:8
        UP RUNNING PSCAN ISCAN
        RX bytes:1045 acl:0 sco:0 events:47 errors:0
        TX bytes:358 acl:0 sco:0 commands:24 errors:0
        Features: 0xff 0xff 0x8d 0xfe 0x9b 0xfd 0x00 0x80
        Packet type: DM1 DM3 DM5 DH1 DH3 DH5 HV1 HV2 HV3
        Link policy: RSWITCH HOLD SNIFF PARK
        Link mode: SLAVE ACCEPT
        Name: 'hobbes-0'
        Class: 0x3e0100
        Service Classes: Networking, Rendering, Capturing, Object Transfer,
Audio
        Device Class: Computer, Uncategorized
        HCI Ver: 2.0 (0x3) HCI Rev: 0x2000 LMP Ver: 2.0 (0x3) LMP Subver:
0x415c
        Manufacturer: Broadcom Corporation (15)

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