[sane-devel] Experience with the v4l backend?

[doark at mail.com]

On Fri, 6 Jan 2017 20:39:00 +0100
Torfinn Ingolfsen <tingox at gmail.com> wrote:
> On Fri, Jan 6, 2017 at 8:20 PM, Gerard Klaver <gerard at gkall.hobby.nl>
> wrote:
> > Did you check if device is working with for example the program
> > "cheese" works with UVC devices  
> 
> Yes, I did (sorry for not mentioning it) and yes - it works. Here is
> one example of a picture taken with cheese:
> [tingo at kg-u35jc ~]$ file ~/Pictures/Webcam/*
> /home/tingo/Pictures/Webcam/2017-01-06-203204.jpg: JPEG image data,
> JFIF standard 1.01, aspect ratio, density 1x1, segment length 16, Exif
> Standard: [TIFF image data, little-endian, direntries=4, model=CZUR,
> software=Cheese 3.16.1, datetime=2017:01:06 20:32:04], baseline,
> precision 8, 2304x1728, frames 3
> 
> As you can see, cheese can do 2304x1728 for resolution with this
> scanner.
> 
> > For this program maybe you have to disable the v4l backend in  
> 
> It worked without disabling anything.
> 
> HTH

I can't take a gray scale image with my usb cam either.
I'd guess that this is a bug.
I fact, I can only take one image and then the second generates an error.

Sincerely,
David