[sane-devel] Weird behavior in exagear.

Jeff Sadowski jeff.sadowski at gmail.com
Sat Jan 13 05:17:41 UTC 2018

Thank you so much for helping me trouble shoot all this.
They supposedly have the source code for the driver so I will see if I
can compile that and see if I can find the issue with it. Although I'm
not so sure how it is suppose to work. It is interesting it gets most
of the image and stops near 90+%

On Fri, Jan 12, 2018 at 10:13 PM, Jeff Sadowski <jeff.sadowski at gmail.com> wrote:
> I tried on my laptop to make sure it wasn't something in exagear and I
> got the same results. So I am sure there is a problem with the driver.
> On Fri, Jan 12, 2018 at 6:55 PM, Olaf Meeuwissen
> <paddy-hack at member.fsf.org> wrote:
>> Hi Jeff,
>> Jeff Sadowski writes:
>>> My code is simply calling scanimage the way I posted here already.
>>> Running the same commands by hand results in the same behaviour. I
>>> have my code write the command it runs in a file called ran.txt, so I
>>> can examine it and run it. I'm just using php to open a 3 pipe method
>>> of running scanimage. it is actually running it under "script" which
>>> allows scanimage to continually write to stdout/stderr without
>>> blocking which gets written to a stdout.txt and stderr.txt files. I
>>> also implemented the ability to send ctrl-c using the 3rd input pipe.
>>> So if my loop that is reading the pipes sees that a certain file
>>> exists and is still running it will send a ctrl-c. My frontend starts
>>> this php script and detaches and then reads it's output files to see
>>> what is going on it also continually loads the image being created by
>>> scanimage. I get the latest page number from stdout.txt/stderr.txt and
>>> the name of the file from my rant.txt looking for '--batch= and the
>>> matching quote and replace all %d with the last page number and then I
>>> have my image retrieve send that file. :-)
>> I see.  So you're just layering on top of scanimage.  I thought you we
>> using a PHP layer on top of the SANE C API.  Sorry for overthinking
>> things.  The image acquisition logic in scanimage is correct so the
>> problem appears to be in the brother backend.
>> Sorry for the detour,
>> --
>> Olaf Meeuwissen, LPIC-2            FSF Associate Member since 2004-01-27
>>  GnuPG key: F84A2DD9/B3C0 2F47 EA19 64F4 9F13  F43E B8A4 A88A F84A 2DD9
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