[sane-devel] backend configuration error.

[Immanuel CRC Office]

I removed the printer. Now it says it does not find anything. This is 
what I get from the below command:

[plustek_pp] attach (parport0, 0x7fffff9e58c0, (nil))
[plustek_pp] Device configuration:
[plustek_pp] device name   : >parport0<
[plustek_pp] direct I/O    : yes
[plustek_pp] warmup        : -1s
[plustek_pp] lampOff       : -1
[plustek_pp] lampOffOnEnd  : yes
[plustek_pp] model override: 0
[plustek_pp] ---------------------
[plustek_pp] drvopen()
[plustek_pp] open: PtDrvInit failed: 11
[plustek_pp] open failed: -1
[plustek_pp] sane_get_devices (0x7fffff9e79c0, 0)

for ecp, ecp+epp, epp and spp settings in the bios.

Crystle

m. allan noah wrote:
> ok, i remember some of this from before. try this-
> 
> ditch the printer temporarily, and reboot the machine. go into the bios 
> settings, and try each of the ecp/epp/bidirectional etc, port options, 
> one at a time. after changing one option, boot the machine into linux 
> and run
> 
> SANE_DEBUG_PLUSTEK_PP=255 scanimage -L
> 
> from the command line.
> 
> check:
> 
> man plustek_pp
> 
> for more info.
> 
> allan
> 
> On Wed, 2 Aug 2006, Immanuel CRC Office wrote:
> 
>> No... I'm just trying to get my Plustek scanner to work, and it 
>> doesn't show up in scanimage -L, that just shows the HP printer that 
>> is connected through the scanner to my parallel port.
>>
>> Crystle
>>
>> m. allan noah wrote:
>>> Crystle: are you writing a sane backend driver? the DBG macro is part 
>>> of the source used to build SANE, every existing backend uses to 
>>> print warning messages, so there are lots of examples...
>>>
>>> allan
>>>
>>> On Wed, 2 Aug 2006, Immanuel CRC Office wrote:
>>>
>>>> Could you explain how to use the DBG macro?
>>>>
>>>> Crystle
>>>>
>>>> m. allan noah wrote:
>>>>>
>>>>> try using the DBG macro in your backend to print some messages from 
>>>>> within sane_init() and sane_get_devices().
>>>>>
>>>>> then call:
>>>>>
>>>>> SANE_DEBUG_BACKENDNAME=255 scanimage -L
>>>>>
>>>>> Replace BACKENDNAME with name of your backend in all caps.
>>>>>
>>>>> if you dont see your messages, then the dll backend may not be 
>>>>> loading your backend. try using `strace scanimage -L` to be sure.
>>>>>
>>>>> allan
>>>>>
>>>>> On Wed, 26 Jul 2006, Rupesh Tarpara wrote:
>>>>>
>>>>>> Hi,
>>>>>>
>>>>>> I have hand held image scanner which is a USB-ACM device and uses 
>>>>>> standard
>>>>>> ACM driver (serial communication protocol over USB interface). The 
>>>>>> device
>>>>>> file created by driver is /dev/input/ttyACM0 (virtual serial device).
>>>>>>
>>>>>> Following is the build procedure I have followed.
>>>>>>
>>>>>> I have downloaded "sane-backends 1.0.18" source and made the 
>>>>>> following
>>>>>> changes to incorporate my device:
>>>>>> 1. I have created a new backend source file for this device.
>>>>>> 2. I have modified "sane-backends-1.0.18/configure.in" and
>>>>>> "sane-backends-1.0.18/backend/Makefile.in" files to include my 
>>>>>> backend.
>>>>>> 3. executed autoconf, ./configure, make and make install
>>>>>> 4. all libraries were installed at "/usr/local/lib/sane"
>>>>>>
>>>>>> I modified the "/usr/local/etc/sane.d/dll.conf" file to include my 
>>>>>> backend
>>>>>> name.
>>>>>>
>>>>>> I am using Xsane as frontend. When I run Xsane, it gives error 
>>>>>> message as
>>>>>> "no devices available"
>>>>>>
>>>>>> ----------------------------------------------------------------------- 
>>>>>>
>>>>>> My queries,
>>>>>>
>>>>>> 1) are there any backend configuration steps which I might have 
>>>>>> skipped?
>>>>>> 2) What is the procedure frontend follows when it is executed?
>>>>>> 3) How does the communication happens (or initiates) between 
>>>>>> Frontend<---->
>>>>>> backend <------> device?
>>>>>> 4) What are the steps to be followed for new backend installation?
>>>>>>
>>>>>> -------------------------------------
>>>>>>
>>>>>> Additional information about OS and sane version I am using.
>>>>>>
>>>>>> I am using RedHat AS3 OS, following is the output of uname -a
>>>>>> [root at mypc root]# uname -a
>>>>>> Linux mypc.home.com 2.4.21-40.EL #1 Thu Feb 2 22:32:00 EST 2006 
>>>>>> i686 i686
>>>>>> i386 GNU/Linux
>>>>>>
>>>>>> [root at mypc root]# scanimage --version
>>>>>> scanimage (sane-backends) 1.0.18; backend version 1.0.18
>>>>>>
>>>>>> Regards,
>>>>>>
>>>>>> Rupesh
>>>>>>
>>>>>>
>>>>>>
>>>>>>
>>>>>>
>>>>>> http://www.patni.com
>>>>>> World-Wide Partnerships. World-Class Solutions.
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>>>>>
>>>>
>>>>
>>>
>>
>>
> 

-- 
Crystle Numan
Administrative Secretary, Immanuel CRC
61 Mohawk Rd. W. Hamilton ON   L9C 1V9
905-385-0662
office at immanuelministries.ca
http://immanuelministries.ca