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From: dogan yazar <doganyazar@gmail.com>
To: Luiz Augusto von Dentz <luiz.dentz@gmail.com>
Cc: "linux-bluetooth@vger.kernel.org" <linux-bluetooth@vger.kernel.org>
Subject: Re: Advertising api, bluez sends empty scan response
Date: Thu, 9 Jul 2015 17:20:27 +0200	[thread overview]
Message-ID: <CANzaTi4dRy_bLKc5BNPdyK2wVm6crq8bS8UaSrecwZ6gLqY7HQ@mail.gmail.com> (raw)
In-Reply-To: <CABBYNZJwwEnyNw-D1i38xJjPsmujz+C_E5t3NqXB-G8rM8N_SQ@mail.gmail.com>

Hi Luiz,

I tried with 2 BT 4.0 dongles both of which have the same problem. And
instead of running example-advertisement, if I run the following
commands 2 commands manually, it works fine and I can discover and
connect to my device:
hcitool -i hci0 cmd 0x08 0x0008 3 02 01 05
hciconfig hci0 leadv

So I only have problem with the dbus advertising api. Copying the
commands and output from btmon below. example-advertisement does not
seem to set and advertisement data at all.


//Run example-advertisement

< HCI Command: LE Set Advertise Enable (0x08|0x000a) plen 1
                                                   [hci0] 7.258091
        Advertising: Disabled (0x00)
> HCI Event: Command Complete (0x0e) plen 4                                                                               [hci0] 7.259431
      LE Set Advertise Enable (0x08|0x000a) ncmd 1
        Status: Success (0x00)
< HCI Command: LE Set Advertising Parameters (0x08|0x0006) plen 15
                                                   [hci0] 7.259540
        Min advertising interval: 1280.000 msec (0x0800)
        Max advertising interval: 1280.000 msec (0x0800)
        Type: Connectable undirected - ADV_IND (0x00)
        Own address type: Public (0x00)
        Direct address type: Public (0x00)
        Direct address: 00:00:00:00:00:00 (OUI 00-00-00)
        Channel map: 37, 38, 39 (0x07)
        Filter policy: Allow Scan Request from Any, Allow Connect
Request from Any (0x00)
> HCI Event: Command Complete (0x0e) plen 4                                                                               [hci0] 7.260346
      LE Set Advertising Parameters (0x08|0x0006) ncmd 1
        Status: Success (0x00)
< HCI Command: LE Set Advertise Enable (0x08|0x000a) plen 1
                                                   [hci0] 7.260444
        Advertising: Enabled (0x01)
> HCI Event: Command Complete (0x0e) plen 4                                                                               [hci0] 7.261344
      LE Set Advertise Enable (0x08|0x000a) ncmd 1
        Status: Success (0x00)





//hcitool -i hci0 cmd 0x08 0x0008 3 02 01 05

< HCI Command: LE Set Advertising Data (0x08|0x0008) plen 4
                                                 [hci0] 288.328182
        invalid packet size
        03 02 01 05                                      ....
> HCI Event: Command Complete (0x0e) plen 4                                                                             [hci0] 288.329444
      LE Set Advertising Data (0x08|0x0008) ncmd 1
        Status: Success (0x00)




//hciconfig hci0 leadv

< HCI Command: LE Set Advertising Parameters (0x08|0x0006) plen 15
                                                 [hci0] 343.872012
        Min advertising interval: 1280.000 msec (0x0800)
        Max advertising interval: 1280.000 msec (0x0800)
        Type: Connectable undirected - ADV_IND (0x00)
        Own address type: Public (0x00)
        Direct address type: Public (0x00)
        Direct address: 00:00:00:00:00:00 (OUI 00-00-00)
        Channel map: 37, 38, 39 (0x07)
        Filter policy: Allow Scan Request from Any, Allow Connect
Request from Any (0x00)
> HCI Event: Command Complete (0x0e) plen 4                                                                             [hci0] 343.872852
      LE Set Advertising Parameters (0x08|0x0006) ncmd 1
        Status: Success (0x00)
< HCI Command: LE Set Advertise Enable (0x08|0x000a) plen 1
                                                 [hci0] 343.880238
        Advertising: Enabled (0x01)
> HCI Event: Command Complete (0x0e) plen 4                                                                             [hci0] 343.880842
      LE Set Advertise Enable (0x08|0x000a) ncmd 1
        Status: Success (0x00)

On Thu, Jul 9, 2015 at 2:45 PM, Luiz Augusto von Dentz
<luiz.dentz@gmail.com> wrote:
> Hi,
>
> On Thu, Jul 9, 2015 at 3:15 PM, dogan yazar <doganyazar@gmail.com> wrote:
>> Hello,
>> I am using Bluez 5.32 on kernel 4.1.
>>
>> When I run advertisement-example, bluez successfully sends
>> advertisement but then as an answer to scan request it sends an empty
>> scan response.
>>
>> Any idea what can be the problem?
>
> Could you please add the trace, iirc BlueZ only set the scan data so
> it is up to the controller to generate the scan response not the host
> stack so perhaps there is something wrong with your controller.
>
>
> --
> Luiz Augusto von Dentz

  reply	other threads:[~2015-07-09 15:20 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-07-09 12:15 Advertising api, bluez sends empty scan response dogan yazar
2015-07-09 12:45 ` Luiz Augusto von Dentz
2015-07-09 15:20   ` dogan yazar [this message]
2015-07-09 15:32     ` dogan yazar

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