Can ubt0 be a slave or a passive listener, and not a master?

[Maksim Yevmenkin]

On Sep 10, 2013, at 9:50 AM, Yuri <yuri at rawbw.com> wrote:

> On 09/09/2013 14:58, Maksim Yevmenkin wrote:
>> 
>> Well, you can use bsd instead of android application and try to see what is going on. Bluetooth GPS usually a simple serial port profile.  They just basically send nmea ASCII strings using serial port profile. I have one of those units. Start by querying services on your camera and see what's there.
> 
> To query the services I need to know the device address. This device doesn't answer to the 'inquiry'.

Hmm... Is there a way to make it 'discoverable'? Anything in user interface?

> Also doesn't query the services back through SDP (if this is reasonable at all to expect, not sure). sdpd doesn't get any connections.

Sometimes devices use a special trick where device class bits can be used to provide information about services. This way remote device can learn about services without performing a full blown sdp discovery. So you might want to try and play with it. 

> Can working device not answer 'inquiry'? Maybe it is just dead.

Yes. Device can be set to non-discoverable mode. 

> This company said it would connect to BlueTooth slave with the passcode "0000".

Can you please tell me what device is this? Make and model?

Thanks
Max