[sane-devel] Weird behavior in exagear.

Jeff Sadowski jeff.sadowski at gmail.com
Thu Jan 11 20:46:58 UTC 2018


I wonder it it works the same on a true x86 architecture it could be
something with the brother driver. After those messages are generated
the saned program stays running and tries to process other requests.
However I need to reboot for it to start working again.
I should be able to reset the usb port to get it working again somehow.


On Thu, Jan 11, 2018 at 12:03 PM, Jeff Sadowski <jeff.sadowski at gmail.com> wrote:
> uning sane -l -d128 -e I am able to see the following error.
>
> root at raspberrypi:~:arm$ saned -l -d128 -e
>
> [saned] do_scan: wrote 8192 bytes to client
> [saned] do_scan: trying to read 8188 bytes from scanner
> [saned] do_scan: read 8188 bytes from scanner
> [saned] do_scan: trying to write 8192 bytes to client
> [saned] do_scan: wrote 8192 bytes to client
> [saned] do_scan: trying to read 8188 bytes from scanner
> [saned] do_scan: read 7488 bytes from scanner
> [saned] do_scan: trying to write 7492 bytes to client
> [saned] do_scan: wrote 7492 bytes to client
> [saned] do_scan: trying to read 696 bytes from scanner
> [saned] do_scan: read 0 bytes from scanner
> [saned] do_scan: status = `End of file reached'
> [saned] do_scan: statuscode `End of file reached' was added to buffer
> [saned] do_scan: trying to write 9 bytes to client
> [saned] do_scan: wrote 9 bytes to client
> [saned] do_scan: done, status=End of file reached
> [saned] process_request: waiting for request
> [saned] process_request: bad status 22
> [saned] quit: exiting
>
> on the other end I get the following error
>
> scanimage  '-v' '-p' '--batch=preview.jpg' '--batch-count' '1'
> '--format' 'jpeg' '-l' '0' '-t' '0' '-x' '215.9' '-y' '355.6' '-d'
> 'net:192.168.1.27:brother2:bus1;dev1'
> scanimage: rounded value of br-x from 215.9 to 215.88
> scanimage: rounded value of br-y from 355.6 to 355.567
> Scanning 1 page, incrementing by 1, numbering from 1
> Scanning page 1
> scanimage: scanning image of size 1648x2314 pixels at 24 bits/pixel
> scanimage: acquiring RGB frame
> Progress:98.8%
> scanimage: min/max graylevel value = 11/255
> Application transferred too few scanlines
>
> On Thu, Jan 11, 2018 at 11:33 AM, Jeff Sadowski <jeff.sadowski at gmail.com> wrote:
>> ah looks like I need the -l flag
>>
>> On Thu, Jan 11, 2018 at 11:21 AM, Jeff Sadowski <jeff.sadowski at gmail.com> wrote:
>>> Progress. I am now able to scan jpeg files :-)
>>> And test out more of my phpsaneng program.
>>> My preview worked awesome. I was able to watch the image as it was
>>> being scanned.
>>>
>>> I redid git as recommended in INSTALL.linux
>>>
>>> apt remove sane sane-utils
>>> git clone git://git.debian.org/sane/sane-backends.git
>>> ./configure --prefix=/usr --libdir=/usr/lib --sysconfdir=/etc
>>> --localstatedir=/var  --enable-avahi
>>> make
>>> make install
>>>
>>> it is odd that -V reports as so
>>>
>>> root at raspberrypi:~/sane/sane-backends:x86$ scanimage -V
>>> scanimage (sane-backends) 1.0.27git; backend version 1.0.24
>>>
>>> Is this something I should be worried about?
>>> Where would it be getting 1.0.24
>>> I tried removing all sane files I could find and then
>>> make install from my git repo and I still get the same output.
>>>
>>>
>>> Now to try and get saned working
>>> saned use to at least connect to the port but now I get nothing
>>>
>>> root at raspberrypi:~/sane/sane-backends:x86$ saned -d128
>>> root at raspberrypi:~/sane/sane-backends:x86$
>>>
>>> root at raspberrypi:~/sane/sane-backends:x86$ saned -d128 -b 192.168.1.27
>>> root at raspberrypi:~/sane/sane-backends:x86$
>>>
>>> any suggestions on how to get it to report more?
>>> maybe a compile flag to get something from it?
>>>
>>> On Thu, Jan 11, 2018 at 8:19 AM, Jeff Sadowski <jeff.sadowski at gmail.com> wrote:
>>>> root at raspberrypi:~:arm$ dpkg -c brscan2-0.2.5-1.i386.deb |grep lib|grep so
>>>> -rwxr-xr-x root/root     11444 2009-12-01 18:38 ./usr/lib/libbrcolm2.so.1.0.0
>>>> -rwxr-xr-x root/root     27912 2009-12-01 18:38 ./usr/lib/libbrscandec2.so.1.0.0
>>>> -rwxr-xr-x root/root     94516 2009-12-01 18:38
>>>> ./usr/lib/sane/libsane-brother2.so.1.0.7
>>>> lrwxrwxrwx root/root         0 2009-12-01 18:38
>>>> ./usr/lib/libbrcolm2.so -> /usr/lib/libbrcolm2.so.1
>>>> lrwxrwxrwx root/root         0 2009-12-01 18:38
>>>> ./usr/lib/libbrscandec2.so.1 -> /usr/lib/libbrscandec2.so.1.0.0
>>>> lrwxrwxrwx root/root         0 2009-12-01 18:38
>>>> ./usr/lib/libbrscandec2.so -> /usr/lib/libbrscandec2.so.1
>>>> lrwxrwxrwx root/root         0 2009-12-01 18:38
>>>> ./usr/lib/libbrcolm2.so.1 -> /usr/lib/libbrcolm2.so.1.0.0
>>>> lrwxrwxrwx root/root         0 2009-12-01 18:38
>>>> ./usr/lib/sane/libsane-brother2.so.1 ->
>>>> /usr/lib/sane/libsane-brother2.so.1.0.7
>>>> lrwxrwxrwx root/root         0 2009-12-01 18:38
>>>> ./usr/lib/sane/libsane-brother2.so ->
>>>> /usr/lib/sane/libsane-brother2.so.1
>>>>
>>>> so I will recompile to with libdir=/usr/lib and see if that works.
>>>>
>>>> On Thu, Jan 11, 2018 at 5:28 AM, Olaf Meeuwissen
>>>> <paddy-hack at member.fsf.org> wrote:
>>>>> Hi,
>>>>>
>>>>> Jeff Sadowski writes:
>>>>>
>>>>>> It seems to be wanting .la files when I have .so files so is there a
>>>>>> flag to support shared object files over .la?
>>>>>
>>>>> The dynamic loading should look for .la files first and failing to find
>>>>> those, look for .so files.  You don't need any flag for that (and AFAIK
>>>>> there isn't one).
>>>>>
>>>>>> On Wed, Jan 10, 2018 at 1:36 PM, Jeff Sadowski <jeff.sadowski at gmail.com> wrote:
>>>>>>> I pulled the current git of sane-backend from
>>>>>>> https://anonscm.debian.org/git/sane/sane-backends.git
>>>>>>>
>>>>>>> I did
>>>>>>> ./configure --prefix=/usr --libdir=/usr/lib/i386-linux-gnu
>>>>>>> --sysconfdir=/etc --localstatedir=/var  --
>>>>>>> make
>>>>>>> make install
>>>>>>>
>>>>>>> now when I run "scanimage -L" it can't see my scanner. Is there a flag
>>>>>>> I need to use other drivers than the ones it compiles as the brother
>>>>>>> printer driver is a binary package?
>>>>>
>>>>> The backends you built are installed below /usr/lib/i386-linux-gnu/sane/
>>>>> as libsane-$backendname.$extension, right?  Where is the backend of that
>>>>> brother binary package installed?
>>>>>
>>>>> If it's not in the same directory, you need to tell the loader to look
>>>>> in the directory where the brother binary package installed its
>>>>> backend.  Let's say that is /opt/brother/sane, then you'd have to run
>>>>>
>>>>>   LD_LIBRARY_PATH=/opt/brother/sane scanimage -L
>>>>>
>>>>> Alternatively, you can make a symbolic link to the brother backend from
>>>>> /usr/lib/i386-linux-gnu/sane/.  Using the same example location
>>>>>
>>>>>   cd /usr/lib/i386-linux-gnu/sane
>>>>>   ln -s /opt/brother/sane/libsane-$backendname.$extension
>>>>>
>>>>> Hope this helps,
>>>>> --
>>>>> Olaf Meeuwissen, LPIC-2            FSF Associate Member since 2004-01-27
>>>>>  GnuPG key: F84A2DD9/B3C0 2F47 EA19 64F4 9F13  F43E B8A4 A88A F84A 2DD9
>>>>>  Support Free Software                        https://my.fsf.org/donate
>>>>>  Join the Free Software Foundation              https://my.fsf.org/join



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