hplip setup problems

[Isaac Mushinsky]

Anish Mistry (the port maintainer) has answered below. It seems that this is
a printer defect after all then. I'll try to patch the code to fill in the
missing serial id with some fake string, and shall report if I get the thing
to work.

Is the hp backend the only entry point to libusb, or should I have to patch
libusb? e.g. cups or sane apps, can they call libusb directly, or only
through hpaio backend? I would rather have a patch to hplip distribution
only, because libusb correctly throws an error code for the missing serial
id. But if some apps query the device directly, the missing serial id may be
a problem, they will all have to all be patched separately.


>  It looks like there is some problem with the C42XX printers that is
> causing the serial numbers to no be reported.  I got a similar report
> about a HP Photosmart C4200 series a couple weeks ago.  Unfortunately
> I'm VERY busy right now.  It will be a couple of week before I can
> dive into the issue.  If you do happen to find a solution, please let
> me know so I can integrate it into the port and notify others.
>  Thanks,
>  --
> Anish Mistry
> amistry at am-productions.biz
> AM Productions http://am-productions.biz/
>