[sane-devel] image lines is -1 according to sane_get_parameters

[dabicho]

El 22/10/2012 19:22, "m. allan noah" <kitno455 at gmail.com> escribió:
>
> On Mon, Oct 22, 2012 at 7:55 PM, dabicho <tsukebumi at gmail.com> wrote:
> >
> > El 22/10/2012 18:44, "m. allan noah" <kitno455 at gmail.com> escribió:
> >
> >
> >>
> >> That is the backend's indication that it does not know the length of
> >> the paper. The backend should have some option where you set the
> >> height of the image you want it to scan. If you do not tell it, it
> >> tells you that it does not know. I imagine you use an Avision scanner?
> >>
> >> allan
> >>
> > Yes. It is avision.
> > Funny thing is it used to work with previous release (21). I set a high
br-y
> > value. 22000000. Could that be the problem? How can I calculate it for
the
> > whole area?
> >
> > Thank you.
>
> We have another report to this effect for the Avision backend. The -1
> value is valid, but a little unusual if you have specifically
> requested a valid br-y. If so, I would expect the backend either
> truncate or pad the image as required. Is 22000000 really valid?
>

I came to that value by trial and error previously (21), so I assumed it
was valid as it worked.
I think I was wrong and the previous backend was more permissive. I will go
the other route.
Thank you.
>
> allan
> --
> "The truth is an offense, but not a sin"
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