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Re: [Spca50x-devs] Genius Messenger 310




Michel Xhaard wrote:
> Le dimanche 2 décembre 2007 17:31, Thomas Kaiser a écrit :
>> Thomas Kaiser wrote:
>>> Guillermo Movia wrote:
>>>> 2007/11/27, Thomas Kaiser <spca5xx@xxxxxxxxxxxxxxx>:
>>>>> Hello Guillermo
>>>>>
>>>>> Pixart chip with ID 093a:2624 is not known yet by the driver. Do you
>>>>> know what chip is inside your cam? PAC7311? If it is a PAC7311 you can
>>>>> add the ID in gspca_core.c.
>>>> No, for i could see, it's PAC7302, at least it's the name that put the
>>>> driver folder in windows.
>>>>
>>>> Thanks
>>>> Guillermo
>>>>
>>>>> Search for 0x093a and look for 0x2600. You just have to add similar
>>>>> entries.
>>>>>
>>>>> Thomas
>>>>>
>>>>>
>>>>> --
>>>>> http://www.kaiser-linux.li
>>> Hi Guillermo
>>>
>>> The feature of the PAC7302 looks similar as of the PAC7312.
>>> http://www.cgtechnology.com.cn/Html/Proen162.html
>>>
>>> Can you do a usbsnoop in Windoz and put the file somwhere on the net?
>>>
>>> Thomas
>> Hello All
>>
>> After some private emails between Guillermo and me I will write down a
>> little summary of what we found out.
>>
>> The video stream uses the same "Pixart" JPEG compression as the PAC7311 I
>> am working on. I am able to extract and decode pictures from the usbsnoop I
>> god from Guillermo :-) But the picture is 90 degree rotated. Instead of
>> 640x480 I have to add 480x640 in the JPEG header to get the whole picture.
>> And I see the same pixel problem as with the PAC7311. (I found a JPEG Guru
>> who is willing to help me on this, I hope we can find the problem)
>>
>> Register 0x78 seems to turn on the stream. That's the same register like
>> PAC7311. Register 0xff seems to be a kind of bank switching as it is on the
>> PAC7311. But here it uses values from 0 to 3 and on the PAC7311 only the
>> value 1 and 4. Register 0x11 seems to have the same function, too (load
>> settings to sensor or strobe).
>>
>> But everything else I don't know :-(
>>
>> Let's see if I can buy the same cam here and do some more investigations
>> ;-)
>>
>> Thomas
> Thomas,
> Good luck ;-)

Michel,
Luck is needed when you work with Pixart chips :-(

Thomas


-- 
http://www.kaiser-linux.li

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