Hi,
On 2023-02-04 10:38, Karl Weber wrote:
Hi Ralf,
On Saturday, 4 February 2023 18:06:41 CET Ralph Little wrote:
The condition on SANE_OPTION_IS_SETTABLE(opt->cap) has been removed in
version
1.1.1 and this causes the problem.
I'm a bit confused by this comment. I thought that your issue was caused
by the backend sending NULL.
Which problem do you believe this causes? Or are you saying that the
NULL options issue is revealed by this change? That is certainly possible.
Yes, you may also say that the NULL options issue has been revealed by this
change. I didn't know, why this check has been removed and I don't know why it
had been there beforehand. I am really new to sane! I started to look at the
code two days ago. Before I was only an ignorant user of scanimage. So please
excuse me.
But irrespective of the wording, are you going to do something about it? Or
where would be the right place to fix this problem? Currently I have no idea,
whether hplip-sane is open source and what the chances would be, to get a fix
in there, if this would be the right place for a fix. I don't even know,
whether it is part of the SANE API specification, that there must not be NULL
options.
I suspect that the hpaio backend is doing something improper. However,
we must deal with it somehow.
I will do a fix.
Cheers,
Ralph
