Re: RFC: Phase 1: Proposal to convert V4L1 drivers

[Hans de Goede <hdegoede@redhat.com>]

Hi,

On 03/20/2010 09:58 AM, Hans Verkuil wrote:
> Hi all,
>
> Well, I certainly fired everyone up with my RFC. Based on the replies I got I
> do think the time is right to start the removal process.
>
> Phase 1 would be to convert the remaining V4L1 drivers.
>
> To see what needs to be done I decided to analyse the remaining V4L1 drivers:
>
> - usbvideo (really four drivers: vicam, ibmcam, konicawc, quickcam_messenger)
>
> Hans de Goede added support for the quickcam_messenger to gspca, so that driver
> is scheduled for removal. Devin has hardware to test the vicam driver. David
> Ellingsworth has hardware to test the ibmcam driver. It would be great if
> Devin and David can either send it to Hans de Goede or work on it themselves.
>
> The konicawc is for an Intel YC76 webcam. I found one for sale here:
>
> http://www.ecrater.com/product.php?pid=6593985
>
> Unfortunately the seller does not ship to the Netherlands or to Norway. Can
> some kind US developer buy it and donate it to Hans de Goede? It's fairly
> expensive at $39.99, but it's for a good cause.
>
> So in theory all these drivers can be tested and converted.
>
> - bw-qcam
>
> A parallel port Connectix QuickCam webcam. To my knowledge no one has hardware
> to test this. However, it should not be hard to convert this to V4L2, even
> without having hardware since this driver doesn't do any streaming or DMA.
>

It is parallel port only so lets just drop it.

> - c-qcam
>
> A parallel port color Connectix QuickCam webcam. To my knowledge no one has
> hardware to test this. However, it should not be hard to convert this to V4L2,
> even without having hardware since this driver doesn't do any streaming or DMA.
>

It is parallel port only so lets just drop it.


> - w9966
>
> A parallel port LifeView FlyCam Supra webcam. To my knowledge no one has
> hardware to test this. However, it should not be hard to convert this to V4L2,
> even without having hardware since this driver doesn't do any streaming or DMA.
>

It is parallel port only so lets just drop it.

> - cpia_pp
>
> Parallel port webcam driver for the Creative Webcam II. I found one on eBay,
> so with luck I can get hold of the hardware and get it to HdG.
>

Although I appreaciate your effort in getting this cam into my hands, I don't
know what to with it once I have it, my stance on it can be summarized as:
It is parallel port only so lets just drop it.

> - cpia_usb
>
> USB variant of cpia_pp. Deprecated since it is now supported by gspca.
>

Ack, note that there is no sane way to make the gspca code also support the
parallel port version, so if we would like to do that we would have
to keep the pp part of the old cpia1 v4l1 driver which could do both pp and
usb around, and convert that v4l2.

<snip>

> So if we all pitch in, then can get everything converted without having to
> remove drivers.

I'm not sure if the parallel port attached are worth keeping support for. But
if someone else is willing to convert those, sure.

Regards,

Hans