Bug#883182: libsane-hpaio: SCL scan resolutions list too restrictive

[Brian Potkin <claremont102@gmail.com>]

On Sat 28 Jul 2018 at 10:52:51 +0100, Geoff Clare wrote:

> I have reported this upstream as suggested by Brian.
> 
> See https://bugs.launchpad.net/hplip/+bug/1784118

Thank you for being involved. We will see what transpires.

I said earlier:

 > 3.10 takes us before wheezy; I am not prepared to test beyond jessie,

I did quite a lot of scanning with my psc 1300 aio some time ago and
have a distinct recollection the resolution in xsane was presented as
a slider. So I gave in and installed squeeze. It was niggling at me.

 root@squeeze:~# scanimage --help -d hpaio:/usb/psc_1300_series?serial=HU3AFBQ28Y9F | grep resolution
     --resolution 75..600dpi [75]
         Sets the resolution of the scanned image.

That's a range, isn't it? hplip is 3.10.6-2+squeeze2.

Now - my understanding is that the backend (hpaio) gets data from the
device firmware. It is apparent here that the backend can also readjust
what it gets when presenting it to the frontend. The question is - why
do that?

Cheers,

Brian.