Re: More than one bluetooth device?
Re: More than one bluetooth device?
- Subject: Re: More than one bluetooth device?
- From: Tim Hewett <email@hidden>
- Date: Thu, 1 Nov 2007 00:11:07 +0000
Daniel,
Sorry I misread your question. An external BT dongle will override the
internal one, I have a class 1 Edimax (highly recommended as it uses
the Cambridge Silicon chipset and works right out of the box, unlike
the Broadcom-based ones) doing just that. The only problem has been
that when the Mac is in discovery state, both the internal and
external devices respond when polled (under 10.4.10, not sure about
10.5). This is a problem because they both have the same name, and it
is not deterministic as to which one responds first so you can't bet
on which one will be first in the list.
Who knows which chipset your dongle uses, there is a chance MacOS will
not support it, or only support it in limited ways.
Tim.
On 31 Oct 2007, at 23:11, Daniel Birns wrote:
Hi Tim,
Thanks for the feedback. The question is not one of having
benefit. Here's the question: Today I bought a mouse that has a
usb-bt dongle in the box. Say I'm a naive user. I put it on my
computer, not knowing anything.
What's going to happen? Actually I'm going to find out soon,
because I'm going to try it!
--Daniel
On Oct 31, 2007, at 3:59 PM, Tim Hewett wrote:
Daniel,
I don't expect there would be any benefit of having more than one
Bluetooth interface active, it may make things worse as they may
interfere with each other. I say that on the basis that all
Bluetooth comms occur in the same frequency band, with frequency
hopping used to help reduce collisions between independent devices.
The only benefit I could see is when the devices are different
classes, e.g. using a class 1 device for services which need
greater range, but a lower power one for short range things like
keyboard and mouse. This would be a conscientious way to reduce
your interference impact on your neighbours.
Tim.
On 31 Oct 2007, at 19:01, email@hidden
wrote:
Can a mac have more than one bluetooth device? I tried plugging
in a
dongle, and I believe what happened was that the dongle replaced the
builtin bluetooth device.
Also the api for finding out info about the bluetooth device seems
to
only support one device. Is there a definitive answer?
--Daniel
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