[Bluez-users] Scan Time for hcitool

[Bluez-users] Scan Time for hcitool

[alexj]

Dear list,

I'm using hcitool to search for a number of known HW-addresses, to see of
someones in the (coffee)room. Corny, but fun.
Example:
hcitool name DE:39:EF:98:01:34

However, If all phones/devices are present, the script runs quickliy,
traversin through the list. But, if one is missing it takes a very long
time before it terminates. Setting a timeoutflag, doesn't seem to do the
trick. And I can't spawn more cild processes, because the first one locks
up the HCi device, of course.

What can be done to shorten the seek->timeout time for non-present devices
that have known HW-addresses?

sincerely

Alex




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Re: [Bluez-users] Scan Time for hcitool

[Marcel Holtmann]

Hi Alex,

> I'm using hcitool to search for a number of known HW-addresses, to see of
> someones in the (coffee)room. Corny, but fun.
> Example:
> hcitool name DE:39:EF:98:01:34
> 
> However, If all phones/devices are present, the script runs quickliy,
> traversin through the list. But, if one is missing it takes a very long
> time before it terminates. Setting a timeoutflag, doesn't seem to do the
> trick. And I can't spawn more cild processes, because the first one locks
> up the HCi device, of course.
> 
> What can be done to shorten the seek->timeout time for non-present devices
> that have known HW-addresses?

I don't know if it also works for the name resolve, but it should be and
the timeout parameter you are looking for is called page timeout and can
be set via hciconfig.

Regards

Marcel




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[Bluez-users] Hcitool rssi/tpl/lq

[Chris Dawson]

Hi all,

I've got Bluez going now on newly installed Fedora Core 2 (thanks Jouni 
Lohikoski for the pointer).

I can scan for devices with 'hcitool scan' or inq, but I really want to play 
with the rssi and lq options... when I try them I get "Not connected".  When 
I try to connect ('hcitool cc 00:0a....) I get "Can't create connection. 
Operation not permitted". This is the same with two remote devices: one 
laptop, one T68i.

Can someone let me know how to get RSSI and LQ from a device? Do they need 
to be connected/paired? - ideally I'd like to be able to get both from 
unpaired & unconnected devices.

Thanks
Chris 



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Re: [Bluez-users] Hcitool rssi/tpl/lq

[Marcel Holtmann]

Hi Chris,

> I've got Bluez going now on newly installed Fedora Core 2 (thanks Jouni 
> Lohikoski for the pointer).
> 
> I can scan for devices with 'hcitool scan' or inq, but I really want to play 
> with the rssi and lq options... when I try them I get "Not connected".  When 
> I try to connect ('hcitool cc 00:0a....) I get "Can't create connection. 
> Operation not permitted". This is the same with two remote devices: one 
> laptop, one T68i.
> 
> Can someone let me know how to get RSSI and LQ from a device? Do they need 
> to be connected/paired? - ideally I'd like to be able to get both from 
> unpaired & unconnected devices.

they don't need to be paired, but they need to be connected. If you
wanna use "hcitool cc ..." then you must do this as root, but you can
also connect to a service via rfcomm etc. and then request RSSI or the
link quality.

Regards

Marcel




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