Re: [Gumstix-users] OE - V4Linux, PWC driver

[briany <bye...@de...>]

You will find the answers on this forum but it's probably not "step by step".
I am away at the moment but can post a blow by blow description in the next
few days if that would help.

The basic idea is as follows:

1. You need to build the kernel under OE so you have the .config file the
build produces.

2. Copy over the .bb recipe for the kernel build and associated files into
user.collection (you are going to effectively edit the kernel build so you
don't want to mess up you base configuration).

3. Go into the directory where the previously built kernel .config  file
lives and do make ARCH=arm menuconfig.

4. follow through the steps exactly as for the documented buildroot approach
to reconfigure the kernel build to add the various drivers (pwc and V4l etc)
configured as modules.

5. Save the new configuration and copy the resulting .config file, replacing
the defconfig file in your kernel build files in user.collection.

6. Rebuild the kernel - bitbake -c rebuild gumstix-kernel.

7. This will give you a new kernel with the appropriate modules enabled and
a set of ipks with the pwc module and 4 ( I think) other modules that pwc
depends on.

8. Install the kernel and get your system running - then install the ipks.
The package manager will tell you in which order they are needed.

9. Once installed (I think the installer does a depmod - a automatically)
when you plug your camera in the module should load up and the camera would
be recognised. I don't think the system will create the /dev/video0 device
until then.

My system worked fine with the Philips spc900nc camera and can be used with
motion to put images on a webpage.


Brian

Peter Vandrish wrote:
> 
> I couldn't even get it to work in buildroot :(
> I was expecting the device file node "video0" to be created when I
> compiled
> the file-system but it was not there. And also when I performed the
> modprobe
> pwc the kernel dumped a stack trace and said something about not allowing
> pwc.ko to be placed in ../video/pwc/
> If you get the thing to work in OE can you please give me a hint about
> that
> if you see me repost to the forum with a similar question.
> Thanks,
> Pete
> 
> On Mon, Jun 23, 2008 at 11:20 PM, Stephen Farnsworth <ea...@by...>
> wrote:
> 
>> I'm another person that soon will be trying to get the Logitech Quickcam
>> Pro 4000 webcam working in oe too.  Had it working in buildroot, but
>> couldn't get other things to work in buildroot, so trying oe.
>>
>> 2008/6/23 Peter Vandrish <pet...@gm...>:
>>
>> Thanks, but buildroot does not seem to work with my bluetooth module
>> easily
>>> that is why I like OE.
>>> Pete
>>>
>>> On Mon, Jun 23, 2008 at 11:01 PM, David Novick <dkn...@ya...>
>>> wrote:
>>>
>>>>  > Hi,
>>>> > Does anyone know of some clear step by step instructions for setting
>>>> up
>>>> video 4 linux and the phillip webcam
>>>> > driver on OE?
>>>> > I just set up my OE environment yesterday and am not sure how this
>>>> all
>>>> works and can't find a good guide.
>>>>
>>>> I'm in a similar boat (so to speak), and I just received my webcams in
>>>> the mail.  There is this:
>>>> http://docwiki.gumstix.org/index.php/Video4linux
>>>>
>>>> for buildroot
>>>>
>>>>
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