Re: [Bluez-devel] bdaddr for CSR chipset - porting dificulties

["Osted Software Development" <info@osted.dk>]

>>
>> Hi,
>>
>> > > I've been working on porting bluez's bdaddr utility to mac, and I
>> > > think I'm making pretty good progress.  After digging around the
>> > > internals of IOBluetooth.framework, I've managed to, I think,
>> > > replicate the behavior of bdaddr's csr_write_bd_addr and
>> > > csr_reset_device.
>> > >
>> > > as far as I can tell, the command sent matches exactly what
>> > > csr_write_bd_addr would have sent with transient=false and addr =
>> > > 00-16-cb-1b-7e-ad.  Anyone see what I'm doing wrong?  Or even any
>> clue
>> > > what status 0x0009 is?
>> >
>> >
>> > Status 0x0009 = PERMISSION_DENIED
>> >
>> > I dont think you can change the bd_addr in the CSR chipset
>> > via UART/USB HCI commmands, only via SPI.
>> > Normally you only want to set the bd_addr during production.
>> >
>>
>> You can change it over the UART by using the bccmd util provided with
>> bluez utils. However, in the default configuration this will only change
>> the
>> address in RAM, not permanently in flash. This is by intention because
>> normaly you're not expected to do this unless you own a block of OUI
>> numbers where you can take a valid address from.
>>
>> So, as Susanne already mentioned normaly only in production.
>>
>> Ciao,
>>
>> Peter
>> |
>> |       Gustav-Meyer-Allee 25, Geb. 12  Email: pewi@gw-instruments.de
>>
>>
> But only UART, not USB?  I tried again with transient = true (word 7 =
> 0x0008) and I still get a response with status 0x0009.
>
> And yeah, I understand changing your BT address is generally a bad
> idea.  This is just for research purposes.  I'm trying to get a Wii to
> connect to a MacBook as if it were a Wii Remote and so far just
> matching the device name/class has proved insufficient.  Current
> theory is it will only connect to devices in Nintendo's OUI ranges.
>

You could check the pskey 509 Security_active, some manufactures
enables this, and you can only disable it via SPI. If it is enabled,
I assume [ not tested :-) ] this will prevent you from changing the bd_addr.

-Susanne


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