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From: "Brian J. Murrell" <brian@interlinx.bc.ca>
To: Brad Midgley <bmidgley-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
Cc: linux-bluetooth@vger.kernel.org
Subject: Re: how to set adapter to master with bluez 4.69?
Date: Wed, 23 Mar 2011 07:43:34 -0400	[thread overview]
Message-ID: <4D89DCE6.7050106@interlinx.bc.ca> (raw)
In-Reply-To: <AANLkTi=N_5BaEOaaFsTHhNF82Vo83bzeNuzqmd9rMU3j@mail.gmail.com>

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On 11-03-14 11:29 AM, Brad Midgley wrote:
> Brian,

Hey Brad,

> iirc, the hcitool output tells you the role of the local adapter in
> the connection. So when you see 'master' in that list, it's what you
> want. You should also be requesting master when you try hcitool.

Does the above still jive with all of this:

$ hciconfig hci0 lm
hci0:	Type: BR/EDR  Bus: USB
	BD Address: 00:02:72:1E:E0:12  ACL MTU: 1021:7  SCO MTU: 64:1
	Link mode: SLAVE ACCEPT

Notice the B/T adapter's link mode is set to slave, yet...

$ hcitool con
Connections:
	> ACL 00:1F:20:0F:30:6A handle 11 state 1 lm MASTER

In the connection with the mouse, the B/T adapter is master.

I can change it successfully:

brian@pc:~$ sudo hciconfig hci0 lm master,accept
brian@pc:~$ hciconfig hci0 lm
hci0:	Type: BR/EDR  Bus: USB
	BD Address: 00:02:72:1E:E0:12  ACL MTU: 1021:7  SCO MTU: 64:1
	Link mode: ACCEPT MASTER

Which doesn't change the connection with the mouse:

$ hcitool con
Connections:
	> ACL 00:1F:20:0F:30:6A handle 11 state 1 lm MASTER

When I connect the headset using the bluetooth-applet:

$ hcitool con
Connections:
	< eSCO 00:18:6B:E5:4F:7E handle 6 state 1 lm SLAVE
	< ACL 00:18:6B:E5:4F:7E handle 12 state 1 lm MASTER AUTH ENCRYPT
	> ACL 00:1F:20:0F:30:6A handle 11 state 1 lm MASTER

The connection with the headset itself has the B/T adapter as master but
this eSCO connection is slave?

Oh wait.  The eSCO connection disappeared now:

$ hcitool con
Connections:
	< ACL 00:18:6B:E5:4F:7E handle 12 state 1 lm MASTER AUTH ENCRYPT
	> ACL 00:1F:20:0F:30:6A handle 11 state 1 lm MASTER

Now that I play something through the headset it comes back:

Connections:
	< eSCO 00:18:6B:E5:4F:7E handle 6 state 1 lm SLAVE
	< ACL 00:18:6B:E5:4F:7E handle 12 state 1 lm MASTER AUTH ENCRYPT
	> ACL 00:1F:20:0F:30:6A handle 11 state 1 lm MASTER

I guess that eSCO connection is only active when there is audio sent to
the headset perhaps.

I sure wish I could get all of this to work reliably.  Even if I had to
follow a recipe of manual steps -- something I have not yet been able to
figure out with any consistency.

b.


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  parent reply	other threads:[~2011-03-23 11:43 UTC|newest]

Thread overview: 23+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2011-03-03  2:07 how to set adapter to master with bluez 4.69? Brian J. Murrell
2011-03-06 22:28 ` Brian J. Murrell
2011-03-07  1:08   ` Brad Midgley
2011-03-07 21:13     ` Brian J. Murrell
2011-03-07 22:57       ` Andrei Warkentin
2011-03-08 11:08         ` Brian J. Murrell
2011-03-09 11:22           ` Brian J. Murrell
2011-03-07 23:09       ` Brad Midgley
2011-03-14  3:46         ` Brad Midgley
2011-03-14 11:00           ` Brian J. Murrell
2011-03-14 12:29             ` Brian J. Murrell
2011-03-14 14:07               ` Brian J. Murrell
2011-03-14 15:29                 ` Brad Midgley
2011-03-15  0:23                   ` Brian J. Murrell
2011-03-15 12:26                   ` Brian J. Murrell
2011-03-15 12:43                     ` Brian J. Murrell
2011-03-15 15:25                       ` Brad Midgley
2011-03-17 13:10                         ` Brian J. Murrell
2011-03-17 13:22                           ` Brian J. Murrell
2011-03-17 15:46                             ` Brad Midgley
2011-03-23 11:43                   ` Brian J. Murrell [this message]
2011-03-23 12:20                     ` Brian J. Murrell
2011-03-23 16:24                       ` Brad Midgley

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