Re: Problem with StopDiscovery() via dbus-send

From: Luiz Augusto von Dentz <luiz.dentz@gmail.com>
To: ProklovAV@mail.zabtrans.ru
Cc: "linux-bluetooth@vger.kernel.org" <linux-bluetooth@vger.kernel.org>
Subject: Re: Problem with StopDiscovery() via dbus-send
Date: Fri, 15 Sep 2017 11:46:09 +0300	[thread overview]
Message-ID: <CABBYNZJQRH75iaddKeNFJXqSwWqAxhRjLYHddAuMhxVq_T1V+A@mail.gmail.com> (raw)
In-Reply-To: <59BB90DD.1040408@mail.zabtrans.ru>

Hi Aleksandr,

On Fri, Sep 15, 2017 at 11:35 AM, =D0=9F=D1=80=D0=BE=D0=BA=D0=BB=D0=BE=D0=
=B2 =D0=90=D0=BB=D0=B5=D0=BA=D1=81=D0=B0=D0=BD=D0=B4=D1=80 =D0=92=D0=B0=D0=
=BB=D0=B5=D1=80=D1=8C=D0=B5=D0=B2=D0=B8=D1=87
<ProklovAV@mail.zabtrans.ru> wrote:
> 15.09.2017 14:27, Luiz Augusto von Dentz =D0=BF=D0=B8=D1=88=D0=B5=D1=82:
>>
>> Hi Aleksandr,
>>
>> On Fri, Sep 15, 2017 at 6:25 AM, =D0=9F=D1=80=D0=BE=D0=BA=D0=BB=D0=BE=D0=
=B2 =D0=90=D0=BB=D0=B5=D0=BA=D1=81=D0=B0=D0=BD=D0=B4=D1=80 =D0=92=D0=B0=D0=
=BB=D0=B5=D1=80=D1=8C=D0=B5=D0=B2=D0=B8=D1=87
>> <ProklovAV@mail.zabtrans.ru> wrote:
>>>
>>>   Hello All,
>>>
>>> Maybe it's a bug?
>>>
>>> I'm trying to manage Bluetooth using dbus-send command,
>>> I send command for start discovery:
>>> dbus-send --system --reply-timeout=3D5000 --type=3Dmethod_call
>>> --dest=3Dorg.bluez
>>> /org/bluez/hci0 org.bluez.Adapter1.StartDiscovery
>>
>>
>> dbus-send disconnects from the bus so the discovery is stopped because
>> there is no client to report the devices found.
>>
>
> Discovery not stopped, see my log from btmgmt. I not start discovery via
> "btmgmt find". Command "btmgmt stop-find" not help me.
>
> Now i add to code for stop discovery process:
> btmgmt power off
> sleep 2
> btmgmt power on

Ive just a set of patches adressing race condition with StartDiscovery
and StopDiscovery, please have a try. Also it is not a good idea to
mix usage of D-Bus with btmgmt, they might not play well together
especially when it comes to discovery.

>
>
>>>
>>> Discovery process NOT stop!!! in btmgmt i see:
>>> hci0 type 7 discovering off
>>> hci0 type 7 discovering on
>>> hci0 type 7 discovering off
>>> hci0 type 7 discovering on
>>> hci0 type 7 discovering off
>>> hci0 type 7 discovering on
>>>
>>> and it goes on continuously!
>>> How can I stop the search process? "StopDiscovery" not work from
>>> dbus-send
>>> command.
>>>
>>>
>>> ---------------------
>>> Best regards,
>>> Aleksandr Proklov
>>> --
>>> To unsubscribe from this list: send the line "unsubscribe
>>> linux-bluetooth"
>>> in
>>> the body of a message to majordomo@vger.kernel.org
>>> More majordomo info at  http://vger.kernel.org/majordomo-info.html
>>
>>
>>
>>
>
> --
> To unsubscribe from this list: send the line "unsubscribe linux-bluetooth=
"
> in
> the body of a message to majordomo@vger.kernel.org
> More majordomo info at  http://vger.kernel.org/majordomo-info.html

--=20
Luiz Augusto von Dentz