Re: [PATCH] Bluetooth: btusb: Apply Intel device configuration routine

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Hi Marcel,

On Tue, 12 May 2015 17:05:21 +0200
Marcel Holtmann <marcel@xxxxxxxxxxxx> wrote:

> Hi Tedd,
> 
> > This patch adds support to apply the device configuration parameters
> > (DDC) after firwmare downloading on Intel 8265 device.
> > 
> > This is optional configuration parameters and good to have.
> > So, even if it fails to apply it, it is not necessary to fail the
> > setup.
> > 
> > The file format is same as previous firmware patch (.bseq) and
> > this is only applicable to Intel 8265 device.
> 
> my preference is actually to not use *.bseq files since they are generic HCI commands. We want to use a new *.ddc file format that just contains the parameters. I clearly prefer that over just sending HCI commands. What we have to do is to actually define a simple DDC file format that lets us include the key/param pairs.
> 

HCI command in .bseq is pretty simple to decode so extracting DDC contents (key/parmas) will not be a problem.
For DDC file, I think the simplest is [len] [key] [params] [len] [key] [params] ... in binary. So, the driver simpley read the full data and send with Intel_DDC_Write function.

Let me know if you have anything in your mind or any example in the other driver that I can refer.

> Regards
> 
> Marcel
> 
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