I tracked down
this problem to the file:
scan/sane/hpaio.c
The function DevDiscovery(int localOnly)
skips the detection of cups connected devices if localOnly is set. This
flag is passed as TRUE by scaned, probably to
avoid a loop with itself.
I think that hplip is misunderstanding this flag.
I just commented out the respective "if" (line 291 of hpaio.c in
hplip-1.7.4a)
and now it works.
This is very crude but in this way saned is working with libsane-hpaio
again.
I hope this helps.
Hernan
This is the patch:
diff -rup hplip-1.7.4a/scan/sane/hpaio.c hplip-1.7.4/scan/sane/hpaio.c
--- hplip-1.7.4a/scan/sane/hpaio.c 2007-03-16 21:09:04.000000000 -0300
+++ hplip-1.7.4b/scan/sane/hpaio.c 2007-07-20 16:17:38.000000000 -0300
@@ -288,7 +288,7 @@ static int DevDiscovery(int localOnly)
}
}
- if (!localOnly)
+ if (1)
{
cnt = GetCupsPrinters(&cups_printer);
for (i=0; i<cnt; i++)
> I've discovered a bug in hplip which makes it impossible to share the
> scanner
> of a networked HP Photosmart C5180 using the sane network daemon (saned).
>
> In theory saned is supposed to provide access to a connected scanner
> (using
> e.g. the hpaio backend). Each client on the network which supports
> sane should
> now be able to connect to the server running the sane network daemon and
> access the server's scanners - without needing any special drivers
> (because
> the driver, hplip in my case is installed on the server).
> And this setup worked well with all hplip versions up to 1.6.10.
>
> I've tried many different distros now to get this feature to work with
> newer
> versions of hplip, but I was not successful:
> Ubuntu 7.04 - hplip 2.7.6 - saned not working
> Gentoo 2006.1 - hplip 1.6.12 & 1.7.3 - saned not working
> Debian 4.0 - hplip 1.7.3 - saned not working
> openSuSE 10.2 - hplip 1.7.3 - saned not working
>
> Scanning (locally, on the server) and printing (locally and over the
> net using
> cups) works fine in all cases.
> Of course I am not using any firewall or other related
> software/hardware which
> could block the saned functionality (and it works with 1.6.10).
>
> For further details (output of saned, etc.) you might want to take a
> look at:
> http://www.mail-archive.com/hplip-help%40lists.sourceforge.net/msg02867.html
>
> I am definitely _not_ the only user who is annoyed by this terrible bug.
>
> Please try to investigate this. I would be willing to provide you with
> debug
> information etc.
>
>
> Regards,
> Daniel
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