Re: bluetooth headset and ofono

[Denis Kenzior <denkenz@gmail.com>]

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Hi Georg,

On 02/02/2015 07:34 AM, Georg Chini wrote:
> Hello,
>
> can someone help me with the problem below? Is ofono supposed
> to expose an audio card when a headset is connected? If so, could
> you explain how this happens?
> I am not using SELinux and have ofono and pulse compiled from a
> recent source. The rest of the system is Debian unstable witch ships
> Bluez version 5.23.

I have no idea what SELinux would have to do with anything...

>
> If this is not the right place to ask such questions please tell me, I
> never received any response to my previous mails.
>
> Regards
>               Georg
>
> On 02.02.2015 12:51, Tanu Kaskinen wrote:
>> On Sun, 2015-02-01 at 16:26 +0100, Georg Chini wrote:
>>> Hello,
>>>
>>> I am still fighting to get my bluetooth headset working properly
>>> with the ofono backend. I cannot get HFP to work with pulse.
>>>
>>> When I run ofonod and phonesim and switch on my headset
>>> it seems to connect fine. A card turns up in pulseaudio but the

What exactly are you trying to do? Phonesim can only simulate modem 
signaling.  It will _not_ generate audio.  I should also point out that 
oFono does not support audio for HFP AG role with BlueZ 5.

Only HFP Handsfree role with BlueZ5/PulseAudio is supported.

>>> HFP profile is not available there. Trying to switch to the profile
>>> leads to "not connected" messages in the log.
>>> In phonesim I can simulate a call. If I do so, I get a ring in the
>>> headset and can pick up the call. I am not sure if there is any
>>> audio, I hear silence. If I am playing back with the a2dp_sink
>>> profile at the same time, the a2dp audio is muted (but continues
>>> playing).
>>>
>>> Looking at the code I wonder if the HFP profile of a headset can
>>> ever get available. The ofono backend listens for "CardAdded" or
>>> "CardRemoved" DBUS-messages, but it seems that the "CardAdded"
>>> signal is never emitted by ofono when a headset connects.
>>> There is only a call to the associated function when a phone
>>> connects and nowhere else in the code.

Yes, as I said previously, what you're trying to do is not supported.

Regards,
-Denis