Re: how to set adapter to master with bluez 4.69?

["Brian J. Murrell" <brian@interlinx.bc.ca>]

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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.

How does this reconcile with that though:

$ hcitool con
Connections:
	> ACL 00:1F:20:0F:30:6A handle 12 state 1 lm MASTER
	< SCO 00:1A:45:1B:19:89 handle 1 state 1 lm SLAVE
	< ACL 00:1A:45:1B:19:89 handle 11 state 1 lm SLAVE AUTH ENCRYPT

If that "MASTER/SLAVE" at the end of those lines is telling me what the
disposition of the B/T adapter is, how can it be both MASTER for one
device and SLAVE for another?  Is this "MASTER/SLAVE" relationship per
device and the adapter can be master for some and slave for others?

I can't seem to change the connection for 00:1A:45:1B:19:89 to be master:

$ sudo hcitool sr 00:1A:45:1B:19:89 master
Switch role request failed: Input/output error

so I am back at this place again.  And device co-existence is not at all
stable again.  The mouse keeps dropping out.  ~sigh~

Is the "MASTER" in this at all relevant?  Isn't it telling me that my
adapter should be trying to negotiate being master in all of the
connections it tries to create?

$ 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: MASTER

b.


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