Re: Device UUID, Device Name ...
Re: Device UUID, Device Name ...
- Subject: Re: Device UUID, Device Name ...
- From: Joakim Linde <email@hidden>
- Date: Wed, 25 Apr 2012 14:27:28 -0700
Hi Fredric,
Please see comments below.
Thanks,
Joakim
On Apr 25, 2012, at 6:57 AM, Frederic Visticot wrote:
> I'm using the Texas Instrument CC2540.
> 1. I would like to understand why the device UUID has a different
> value when visible from different iPhone / iPad
> How to have an unique UUID for each BLE device ?
We are trying to avoid the case where you could crowd source the location of people based on the devices around them. However, if you have a good use case, we should have a good discussion about that.
>
> 2. I have modified the deviceName info from the broadcast data with:
> GAPRole_SetParameter( GAPROLE_SCAN_RSP_DATA, sizeof ( deviceName ),
> deviceName );
> The pb is that it is very easy to "fake" the tag by using the same
> deviceName on another tag...
> How to avoid the pb ?
There is no guarantee that the name uniquely identifies the device. One way would be to connect to it and read a serial number from the device (if it supports the Device Information Service or similar service).
>
> 3. attTagName:
> GGS_SetParameter( GGS_DEVICE_NAME_ATT, GAP_DEVICE_NAME_LEN, attDeviceName );
> When use this parameter ? why it is different to the deviceName ?
You might want to contact Sandeep Kamath <email@hidden> at TI regarding this.
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