From: Marco Trudel <mtrudel@gmx.ch>
To: bluez-users@lists.sourceforge.net
Subject: Re: [Bluez-users] hcitool scan times
Date: Fri, 18 Feb 2005 23:45:35 +0100 [thread overview]
Message-ID: <4216700F.5010106@gmx.ch> (raw)
In-Reply-To: <ac72cfc8050218143042696ba4@mail.gmail.com>
Emiliano Heyns wrote:
> On Fri, 18 Feb 2005 19:49:32 +0100, Marco Trudel <mtrudel@gmx.ch> wrote:
>
>>hello emiliano
>>
>>read the bluetooth specification.
>>you've to allow remote devices ~10.5 seconds to answer... so 13 seconds
>>makes sense...
>>that it is so fast from time to time is, because a cached result is
>>returned. look at the source of hcitool for more information...
>
>
> OK, thanks. This could actually work to my benefit if I disable the
> hcitool cache --
you're welcome...
> the device could take the time the user takes from
> walking into range to being at the device for detecting,
I don't know what you mean with this...
> if you walk
> out of range before that you were only passing the device. Good. Now I
> only have to look at average office walking speeds to see how great I
> want this radius to be :)
I don't understand that as well, but it sounds very interesting. Can you
explain what you're doing? Just curious...
by the way: do you know that a device does not have to answer to an
inquiry? if a device is busy or just decides to not answer to an inquiry,
that's ok (defined in bluetooth specification, my experience showed this as
well)...
regards
Marco
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next prev parent reply other threads:[~2005-02-18 22:45 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-02-18 9:24 [Bluez-users] hcitool scan times Emiliano Heyns
2005-02-18 18:49 ` Marco Trudel
2005-02-18 22:30 ` Emiliano Heyns
2005-02-18 22:45 ` Marco Trudel [this message]
2005-02-19 13:17 ` Emiliano Heyns
2005-02-21 23:07 ` Marcel Holtmann
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