[Bluez-devel] multiple btsco istance

[Bluez-devel] multiple btsco istance

[Luca Pizzamiglio]

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Hi to all.

I want to establish a SCO connection with btsco with two another device
(two headset). I need two bluetooth dongle?
At the moment, when I launch two istance of btsco, only the last works.

Using two dongles, hci0 and hci1, how to tell to btsco what interface to
use?

Is it possible modify btsco to work with two device or it need kernel
changes (snd-bt-sco)? I'm studying source code, but I don't clearly
understand the use of bind syscall before the connect.

Thanks in advance!

Cheers,
Pizza

- -------------------------------------------
Luca Pizzamiglio
CEFRIEL - Embedded Systems Design Unit
Via Fucini, 2 - 20133 MILANO (ITALY)
Phone:		+39 02 23954 343
e-mail:		pizzamiglio@cefriel.it
ICQ:		5046978
- -------------------------------------------
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Re: [Bluez-devel] multiple btsco istance

[Brad Midgley]

Luca,

It's in our todo list but there is still a significant amount of work to 
do it...

With two dongles, we would need btsco the daemon to accept a 
command-line parameter for the adapter to bind to.

With one dongle, we need to load the sco kernel mod with a parameter 
that tweaks one of the sco settings. This is from memory and it's a bit 
fuzzy.

Either way, we then need to make multiple alsa devices available using 
btsco the kernel mod and work out a way to communicate with the 
corresponding daemon.

Brad

Luca Pizzamiglio wrote:
> -----BEGIN PGP SIGNED MESSAGE-----
> Hash: SHA1
> 
> Hi to all.
> 
> I want to establish a SCO connection with btsco with two another device
> (two headset). I need two bluetooth dongle?
> At the moment, when I launch two istance of btsco, only the last works.
> 
> Using two dongles, hci0 and hci1, how to tell to btsco what interface to
> use?
> 
> Is it possible modify btsco to work with two device or it need kernel
> changes (snd-bt-sco)? I'm studying source code, but I don't clearly
> understand the use of bind syscall before the connect.
> 
> Thanks in advance!
> 
> Cheers,
> Pizza
> 
> - -------------------------------------------
> Luca Pizzamiglio
> CEFRIEL - Embedded Systems Design Unit
> Via Fucini, 2 - 20133 MILANO (ITALY)
> Phone:		+39 02 23954 343
> e-mail:		pizzamiglio@cefriel.it
> ICQ:		5046978
> - -------------------------------------------
> -----BEGIN PGP SIGNATURE-----
> Version: GnuPG v1.2.7 (GNU/Linux)
> Comment: Using GnuPG with Thunderbird - http://enigmail.mozdev.org
> 
> iD8DBQFDKT1TAoUy56ORfbERAi89AKCUk8RcsMH+m7YbLTkrBDWz0cuRLACfegFG
> qQsBznGWBAHCAbWbqrHOJ/E=
> =UHaC
> -----END PGP SIGNATURE-----
> 
> 
> -------------------------------------------------------
> SF.Net email is sponsored by:
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Re: [Bluez-devel] multiple btsco istance

[Luca Pizzamiglio]

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Hash: SHA1

Brad,

I could implement the patch of btsco to accept an optional command-line
parameter in order to specify the adapter to bind to.
I think it's the easyest way at the moment.

With one dongle, that's a lot of hard work and now I'm not sure I'm able
to implement this feature.

After that, I could try to solve multiple alsa device issue.

Thanks a lot.

Cheers,
Pizza


Brad Midgley wrote:
> Luca,
> 
> It's in our todo list but there is still a significant amount of work to
> do it...
> 
> With two dongles, we would need btsco the daemon to accept a
> command-line parameter for the adapter to bind to.
> 
> With one dongle, we need to load the sco kernel mod with a parameter
> that tweaks one of the sco settings. This is from memory and it's a bit
> fuzzy.
> 
> Either way, we then need to make multiple alsa devices available using
> btsco the kernel mod and work out a way to communicate with the
> corresponding daemon.
> 
> Brad
> 
> Luca Pizzamiglio wrote:
> 
> Hi to all.
> 
> I want to establish a SCO connection with btsco with two another device
> (two headset). I need two bluetooth dongle?
> At the moment, when I launch two istance of btsco, only the last works.
> 
> Using two dongles, hci0 and hci1, how to tell to btsco what interface to
> use?
> 
> Is it possible modify btsco to work with two device or it need kernel
> changes (snd-bt-sco)? I'm studying source code, but I don't clearly
> understand the use of bind syscall before the connect.
> 
> Thanks in advance!
> 
> Cheers,
> Pizza
> 
> -------------------------------------------
> Luca Pizzamiglio
> CEFRIEL - Embedded Systems Design Unit
> Via Fucini, 2 - 20133 MILANO (ITALY)
> Phone:        +39 02 23954 343
> e-mail:        pizzamiglio@cefriel.it
> ICQ:        5046978
> -------------------------------------------
>>
>>
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> -------------------------------------------------------
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- --
- -------------------------------------------
Luca Pizzamiglio
CEFRIEL - Embedded Systems Design Unit
Via Fucini, 2 - 20133 MILANO (ITALY)
Phone:		+39 02 23954 343
e-mail:		pizzamiglio@cefriel.it
ICQ:		5046978
- -------------------------------------------
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