Re: cx231xx IR remote control protocol

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Hi Devin and Sean!

It was very easy, suddenly IR is fully supported by mceusb!
Required only correct USB ID.

Thank you!

On 23.10.17 16:12, Devin Heitmueller wrote:
> Hi Oleh,
> 
> On Mon, Oct 23, 2017 at 5:37 AM, Sean Young <sean@xxxxxxxx> wrote:
>> Hi Oleh,
>>
>> On Sun, Oct 22, 2017 at 05:01:05PM +0300, Oleh Kravchenko wrote:
>>> Hi,
>>>
>>> I'm trying add support remote control for tuners:
>>> - EvroMedia Full Hybrid Full HD
>>> - Astrometa T2hybrid
>>>
>>> But I'm stuck. Can anybody recognize this protocol?
>>
> 
> Is there anything to indicate that there actually a separate IR
> receiver on the board?  Most cx231xx devices have an MCEUSB compliant
> IR RX/TX built into the chip, and thus they don't use a separate part.
> 
> Also, IIRC, address 0x30 is the I2C address of the onboard analog
> frontend for the cx23102, and I suspect you're just reading the values
> out of the AFE.  I suspect you've grabbed a dump from the initial
> device plug-in, which would coincide with the initial register
> programming of the AFE.
> 
> I suspect if you connect the device, let it device settle, *then*
> start the I2C capture and hit a key on the remote, you'll see traffic
> on a totally different endpoint which would be the IR traffic being
> sent back over the IR interface/endpoint.
> 
> Devin
> 

-- 
Best regards,
Oleh Kravchenko



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