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Re: Multiple Bluetooth Adapters per host -- will they work


Hi Paul.

Thanks for your insight.

We actually are not attempting to consolidate the bandwidth offered by the two adapters. Instead, our application is designed to communicate with lots of individual bluetooth devices. On a per connection basis, the actual bandwidth requirements are quite low. Our intention is to create a central bluetooth server that is capable of managing lots of slow connections. We would like to add the extra adapter to effectively double the number of clients that the server can simultaneously support.

So I suppose my question is: "Will Darwin's kernel-level bluetooth support take advantage of the extra bluetooth adapter in order to effectively double the number of bluetooth devices that can be simultaneously supported?"

Thanks again for your help.

Regards,
-Mike Ellis


On Jul 20, 2005, at 11:48 AM, Paul Nelson wrote:

There is nothing in the Bluetooth spec for multiplexing one data stream over
two Bluetooth radios, and the API follow the spec pretty closely. You
didn't say what you need the extra bandwidth for, and I assume it is not
networking.

If it is a custom designed device, you can do this, but synchronizing the
data between two separate stacks would be up to your software and the
device.

Paul Nelson
Thursby Software Systems, Inc.



From: Michael Ellis <email@hidden>
Date: Wed, 20 Jul 2005 08:58:20 -0400
To: <email@hidden>
Subject: Multiple Bluetooth Adapters per host -- will they work

Hi folks.

I am working on a command-line bluetooth application, and my customer
recently asked an intriguing question.  He would like to be able to
connect multiple bluetooth adapters to a darwin-based system in order
to effectively increase the bandwidth available for bluetooth
communication.

I am writing to see if anybody has tried something similar.  It is
not clear to me if the Bluetooth API will handle the associated
multihoming of multiple bluetooth adapters or not.

Any thoughts are appreciated.

Regards,
-Mike Ellis


=========================
Michael F. Ellis
President
Ellis Softworks Inc.
----------
Phone:  (941) 713-0361
Email: email@hidden
Web: http://www.ellissoftworks.com


_______________________________________________ 


=========================
Michael F. Ellis
President
Ellis Softworks Inc.
----------
Phone:  (941) 713-0361
Email: email@hidden
Web: http://www.ellissoftworks.com


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