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Date: Fri, 12 Aug 2011 09:16:00 +0200
From: Hans de Goede <hdegoede@redhat.com>
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To: Mauro Carvalho Chehab <mchehab@infradead.org>
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Subject: Re: USB mini-summit at LinuxCon Vancouver
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Hi,

On 08/11/2011 10:32 PM, Mauro Carvalho Chehab wrote:

<snip stuff I agree with>

> instead of using the V4L2 device node to access the stored images, it probably makes
> more sense to use a separate device for that, that will handle a separate set of
> ioctl's, and just use read() to retrieve the image data, after selecting the desired
> image number, via ioctl().

I don't see a lot of added value in doing things this way. We can simply
have a set of new ioctls on the /dev/video# node for this and a new
V4L2_CAP_STILL_IMAGE to indicate the availability of these ioctls. This will keep
the driver a lot simpler then doing 2 separate device nodes for 1 device.

Regards,

Hans