Hmm everything you describe here is know issue... But I really
appreciate your testing and feedback, because it is very useful for
development. Main problem is, we don't have any documentation from
sensor provider as well we don't have any documentation from Ali Corp.
so it is a little bit hard to identify right register for controlling
brightness,... Erik yesterday fix that issue which is described in
this thread so I think you don't have to use m5602-s5k83a branch
anymore (what Erik? development branch is now m5602 isn't it?).
For any progress we need to do some revert engineering and I don't
have any experience with this unless my experiment with tweaking
{BRIDGE, M5602_XB_HSYNC_PARA which was amazingly success :-) And you?
Do you have any experience with this stuff?
2008/7/23 Giovanni Mascellani <[EMAIL PROTECTED]>:
> Il giorno mer, 16/07/2008 alle 02.29 +0200, Marek Stopka ha scritto:
>> Hi folks,
>> I finally get to some testing and I don't have a good news. I tried
>> m5602 branch as first and I wasn't very succesful... Livecam report
>> only 2fps but I tried m5602-s5k83a eithter and it works. (about 30fps)
>> Is this expected going or I should start with debugging and send some
>> logs?
>
> Hi all!
>
> I'm following the discussion on this mailing list from much time, but I
> have never written anything. I'm not expert in kernel programming, but
> I'd like to contribute to the development of m5602, if I'm able to do
> something useful.
>
> Here is my situation: I use an Acer Aspire 5610Z, which includes an Ali
> webcam based on m5602. Today I managed for the first time to view
> something on livecam, using m5602-s5k83a.
>
> I can use all livecam modes, but the RGB24 ones. I can't see any
> appreciable differences between this different resolutions, except, of
> course, in image size. Particularly, I can't see any differences between
> RGB and BAYER images. Moreover, changing pitch on livecam doesn't change
> nearly anything in what I see.
>
> The first time I opened livecam (using the m5602 branch), the image was
> extremely dark (actually, the only thing I could see was the light bulb
> behind me!), and it was flickering and with a quite high latency (say
> about half a second). Then I tried changing pitch, closing and reopening
> livecam, changing livecam mode, and after a sequence of operation I
> don't remember, the image, although very dark, became still and much
> more responsive (latency much reduced). Then I continued playing with
> livecam settings, while still having a still image (what a wordplay!).
>
> Then I tried to rmmod the module from m5602 and insmod that from
> m5602-s5k83a. All was working like before, but the image became again
> flickering and I couldn't make it again still. I've tried also to rmmod
> uhci-hcd and ehci-hcd and then re-insmod them (switching off the USB bus
> should be, I think, reset totally the webcam; I can't plug it off,
> because it is built in my computer). But I can't make the image still
> again. :-(
>
> I've not tried to reboot my computer. I'll try it tomorrow (it's quite
> late, right now).
>
> However, I'd like to contribute to the code. I think I'll have to read
> lots of documentation, as I'm not expert in kernel, USB and webcam
> programming. If there is any, can you tell me where to find such docs?
> Thank you!
>
> I attach you three images I obtained with livecam, while it was working
> in "still" mode.
>
> Regards, Giovanni.
> --
> Giovanni Mascellani <[EMAIL PROTECTED]>
> Pisa, Italy
>
> Web: http://giomasce.altervista.org
> SIP: [EMAIL PROTECTED]
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--
S pozdravem / Best regards
Marek Stopka
Official openSUSE community member
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