Re: BLE advertise name

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Hi Marco,

On Mon, May 28, 2018 at 1:40 PM, Marco Palumbi <marco@xxxxxxxxxx> wrote:
> thank you for the replay Luiz.
>
>
> On 27/05/2018 09:01, Luiz Augusto von Dentz wrote:
>>
>> Hi Marco,
>>
>> On Sat, May 26, 2018 at 9:49 PM, Marco Palumbi <marco@xxxxxxxxxx> wrote:
>>>
>>> hello to all,
>>>
>>> I am trying to let BlueZ advertise on BLE with a name longer than 9
>>> character. is this possible?
>>> it seems to me that BlueZ uses the shortname to advertise over BLE.
>>> Any suggestion?
>>
>> How exactly are you trying to advertise? Btw, you should be able to
>> check what type we are using in the advertisement with use of btmon.
>>
> I tried to play with btmon but I wasn't able to find useful information from
> it (probably I am not using it correctly..)
> here is what I have done (BlueZ 5.41 - Digi Embedded Yocto 2.2-r3)
>
> after starting the  bluetoothd
>
> btmgmt -i hci0 le on
> btmgmt -i hci0 connectable on
> btmgmt -i hci0 advertising on
> btmgmt -i hci0 discov on
> btmgmt -i hci0 name MyVeryLongNameThatExceedsNineCharacters
>
> now, if I search for BLE devices from an adroid phone using the "nRF Connct"
> (app from Nordic Semi for BLE tast) I can see my device shown only with this
> name:
>
> MyVeryLong  (indeed they are 10 chars and not 9)
>
> while if I do a "classic" ble scan from android I see it shown twice both
> with the long and the short name.
>
> Nevertheless the android app "nRF Connct" is able to get longer names from
> devices not using BlueZ stack
>
> is this a limit of BlueZ or there is something wrong on my setup?

Except that you should be using btmgmt as that requires sudo/root, I
actually wonder why you haven't tried with bluetoothctl as that would
use the D-Bus API available to applications?



-- 
Luiz Augusto von Dentz
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