New v4l2 driver for atmel boards

New v4l2 driver for atmel boards

[Sedji Gaouaou]

Hi everybody,

I am writing here to know if it is the proper place to send a driver 
that I have written for atmel's boards.
I would like to know as well if there is a git tree against which I 
should based my patch or should I based it against the latest rc?

Regards,
Sedji

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Re: New v4l2 driver for atmel boards

[Guennadi Liakhovetski]

(moved to the new v4l list)

On Wed, 18 Feb 2009, Sedji Gaouaou wrote:

> Hi everybody,
> 
> I am writing here to know if it is the proper place to send a driver that I
> have written for atmel's boards.
> I would like to know as well if there is a git tree against which I should
> based my patch or should I based it against the latest rc?

Hi Sedji,

what hardware is it for? avr32 or at91 (ARM)? And what API are you using 
to communicate with sensors? Currently there are two APIs in the kernel - 
int-device and soc-camera, and they both should at some point (soon) 
converge to the new "V4L2 driver framework." They all have (one of) the 
goal(s) to reuse sensor (or whatever subdevice) drivers with various 
hosts. Which of them are you using?

I've recently got test hardware from Atmel for an AP7000 board (NGW100), 
and was planning to convert the existing external ISI driver from Atmel to 
the soc-camera API, but I have no idea when I find time for that.

As for against which tree to submit patches, I think, 
git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-2.6.git should 
be a good starting point.

Thanks
Guennadi
---
Guennadi Liakhovetski, Ph.D.
Freelance Open-Source Software Developer

Re: New v4l2 driver for atmel boards

[CityK]

Sedji Gaouaou wrote:
> Hi everybody,
>
> I am writing here to know if it is the proper place to send a driver
> that I have written for atmel's boards.
> I would like to know as well if there is a git tree against which I
> should based my patch or should I based it against the latest rc?

Hello, here's an overview for submissions: 
http://www.linuxtv.org/wiki/index.php/Development:_How_to_submit_patches

Re: New v4l2 driver for atmel boards

[Sedji Gaouaou]

Hi Guennadi,

> what hardware is it for? avr32 or at91 (ARM)?
I am working on AT91(ARM).
  And what API are you using
> to communicate with sensors? 
I am using the ISI IP.
Currently there are two APIs in the kernel -
> int-device and soc-camera, and they both should at some point (soon) 
> converge to the new "V4L2 driver framework." They all have (one of) the 
> goal(s) to reuse sensor (or whatever subdevice) drivers with various 
> hosts. Which of them are you using?
> 
> I've recently got test hardware from Atmel for an AP7000 board (NGW100), 
> and was planning to convert the existing external ISI driver from Atmel to 
> the soc-camera API, but I have no idea when I find time for that.
> 

I have a driver which is not using the soc-camera layer...
Which driver is currently using this soc-camera layer so I can have a 
look at it and maybe I could try to convert mine.

Regards,
Sedji

Re: New v4l2 driver for atmel boards

[Guennadi Liakhovetski]

On Thu, 19 Feb 2009, Sedji Gaouaou wrote:

> Hi Guennadi,
> 
> > what hardware is it for? avr32 or at91 (ARM)?
> I am working on AT91(ARM).
>  And what API are you using
> > to communicate with sensors? 
> I am using the ISI IP.
> Currently there are two APIs in the kernel -
> > int-device and soc-camera, and they both should at some point (soon)
> > converge to the new "V4L2 driver framework." They all have (one of) the
> > goal(s) to reuse sensor (or whatever subdevice) drivers with various hosts.
> > Which of them are you using?
> > 
> > I've recently got test hardware from Atmel for an AP7000 board (NGW100), and
> > was planning to convert the existing external ISI driver from Atmel to the
> > soc-camera API, but I have no idea when I find time for that.
> > 
> 
> I have a driver which is not using the soc-camera layer...
> Which driver is currently using this soc-camera layer so I can have a look at
> it and maybe I could try to convert mine.

That would be great. You can look at

drivers/media/video/pxa_camera.c
drivers/media/video/sh_mobile_ceu_camera.c

and, if you wait for my pool request, expected later today, and pull from 
the mercurial tree, also at

drivers/media/video/mx3_camera.c

but, even the former two should be enough for you to start with.

Thanks
Guennadi
---
Guennadi Liakhovetski, Ph.D.
Freelance Open-Source Software Developer