update gspca driver in linux source tree

update gspca driver in linux source tree

[rath]

Hi,

I have a 2.6.29 kernel for my embedded ARM system. I need an newer gspca 
driver, so I downloaded the gspca driver from 
http://linuxtv.org/hg/~hgoede/gspca/ an copied the content of the linux 
folder to my 2.6.29 source tree and tried to cross compile it. But I get the 
error "drivers/media/IR/irfunctions.c:27:20: error: compat.h: No such file 
or directory". Where can I find the missing file and where I have to put it 
in my linux tree?

Do you have some other ideas to cross compile the gspca driver?

Regards, Joern 

Re: update gspca driver in linux source tree

[Hans de Goede]

Hi,

On 04/04/2010 08:47 PM, rath wrote:
> Hi,
>
> I have a 2.6.29 kernel for my embedded ARM system. I need an newer gspca
> driver, so I downloaded the gspca driver from
> http://linuxtv.org/hg/~hgoede/gspca/ an copied the content of the linux
> folder to my 2.6.29 source tree and tried to cross compile it. But I get
> the error "drivers/media/IR/irfunctions.c:27:20: error: compat.h: No
> such file or directory". Where can I find the missing file and where I
> have to put it in my linux tree?
>
> Do you have some other ideas to cross compile the gspca driver?
>

The hg v4l-dvb trees are meant for out of tree compilation (this means your
v4l subsystem must be compiled modular).

You will want to not use my tree, but use the latest generic tree:
hg clone http://linuxtv.org/hg/v4l-dvb/
Then simply compile that tree (this will need the headers of your 2.6.29 kernel
in the usual place):
cd v4l-dvb
make menuconfig
make
sudo make install

And then reboot, now you will be using your 2.9.29 kernel with a fully
up2date v4l-dvb subsystem.

Regards,

Hans

Re: update gspca driver in linux source tree

[rath]

The problem with all the trees (http://linuxtv.org/hg/v4l-dvb/ and 
http://linuxtv.org/hg/v4l-dvb/) are the used perl scripts to build the 
makefile. They use "uname -r" to get the kernel version and they use 
directories like "/lib/modules" as default.
Now, I try to cross compile the tree on my ubuntu machine for an ARM 
embedded system. The arm kernel tree is under a different path than 
"/lib/modules/xxxx/build" and "uname -r" returns the kernel version of my 
local machine. So the drivers don't get properly compiled.

After some changes in the perl scripts I was able to cross compile the 
drivers for my ARM linux system. I have already tried it some weeks before, 
but at that time I had no succes. For this reason I tried it by copying the 
driver sources into my ARM kernel tree. Now it works for me.

I have still one question: Where can I find the ".config" file in the linux 
tree after "make menuconfig"?

Regards, Joern


> You will want to not use my tree, but use the latest generic tree:
> hg clone http://linuxtv.org/hg/v4l-dvb/
> Then simply compile that tree (this will need the headers of your 2.6.29 
> kernel
> in the usual place):
> cd v4l-dvb
> make menuconfig
> make
> sudo make install
>
> And then reboot, now you will be using your 2.9.29 kernel with a fully
> up2date v4l-dvb subsystem.
>
> Regards,
>
> Hans
> --
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