[Bluez-devel] hcitool scan problems....

[Bluez-devel] hcitool scan problems....

[Michael Frey]

I am currently seeing strange behavior while doing "scans".

It takes me several scans to see the devices I have in range.  Also,  
sometimes when I issue "hcitool scan" it does not even scan.  It just 
stops immediately after printing "Scanning ...".

Can anyone explain this?

Michael



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Re: [Bluez-devel] hcitool scan problems....

[Marcel Holtmann]

Hi Michael,

> I am currently seeing strange behavior while doing "scans".
> 
> It takes me several scans to see the devices I have in range.  Also,  
> sometimes when I issue "hcitool scan" it does not even scan.  It just 
> stops immediately after printing "Scanning ...".

what kernel version is this? Try it with --flush.

Regards

Marcel




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Re: [Bluez-devel] hcitool scan problems....

[Michael Frey]

Thanks for the help.  The --scan helps.

I am using kernel 2.4.20

Michael

On Nov 24, 2004, at 4:48 PM, Marcel Holtmann wrote:

> Hi Michael,
>
>> I am currently seeing strange behavior while doing "scans".
>>
>> It takes me several scans to see the devices I have in range.  Also,
>> sometimes when I issue "hcitool scan" it does not even scan.  It just
>> stops immediately after printing "Scanning ...".
>
> what kernel version is this? Try it with --flush.
>
> Regards
>
> Marcel
>
>
>
>
> -------------------------------------------------------
> SF email is sponsored by - The IT Product Guide
> Read honest & candid reviews on hundreds of IT Products from real 
> users.
> Discover which products truly live up to the hype. Start reading now.
> http://productguide.itmanagersjournal.com/
> _______________________________________________
> Bluez-devel mailing list
> Bluez-devel@lists.sourceforge.net
> https://lists.sourceforge.net/lists/listinfo/bluez-devel



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Re: [Bluez-devel] hcitool scan problems....

[Diego Liziero]

On Wed, 2004-11-24 at 14:43 -0500, Michael Frey wrote:
> I am currently seeing strange behavior while doing "scans".
> 
> It takes me several scans to see the devices I have in range.  Also,  
> sometimes when I issue "hcitool scan" it does not even scan.  It just 
> stops immediately after printing "Scanning ...".
> 
> Can anyone explain this?
Maybe,
the default option is to search other bluetooth devices
for 8 windows (about 10 seconds).

Try to wait 10 seconds or decrease the scanning length
with option --length=how_many_win_to_use_for_searching

When you see the devices printed immediately,
it could be because they are discovered during the first
window, or because they are already in the cache,
due to a previous scan.

Regards,
-- 
Diego Liziero <diego.liziero@unimore.it>



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