[sane-devel] LIDE 60. configure scanning prefs?

[m. allan noah]

Stop talking about prefs. We are talking about source code :)

I've never compiled sane on a mac before (M. Ellert might have more
about that on his site) But i can give you the general idea:

1. install the libusb-dev package (or libusb-devel, not sure what your
OS calls it)
2. install gcc package and it's required dependencies (and 'make' too)
3. download latest sane-backends from http://www.sane-project.org/snapshots/
4. tar xzf sane-backends......tgz
6. cd sane-backends.....
7. edit the lide_60 section of the genesys_devices.c file. You'll see
the flags in there.
8. run (all on one line):
 BACKENDS=genesys ./configure --prefix=/usr --sysconfdir=/etc --disable-locking
9. make (then wait awhile)
10. copy the file backend/.libs/libsane-genesys.so.1.0.22 over top of
the copy provided by your distro, not sure where it is on a Mac.
You can save the old one before you overwrite it if you want.
11. test with scanimage or xsane and various options.

Only step #10 needs to be done as root.

Now, those are basically Linux directions, and I'm sure the Mac has
lots of differences, others might chime in here :)

allan

On Fri, Feb 11, 2011 at 4:12 PM, Ben Green <greenb1 at mac.com> wrote:
> Allan, Thanks very much - Following is a lot of "How to" questions?
> I can't try any of this now as I have to go to work - but I'll try these suggestions later tonight -
>
> Just to clarify (here's my programming prowess coming to the fore!) -
>
> This is all done in terminal (not sane prefs?) --
>
> How do I open this file : backend/genesys_devices.c ?
> once i see this file - it might make it all more clear for me..
>
> How do I set GENESYS_FLAG_NO_CALIBRATION?
> How do I remove existing flags?
> and how do I rebuild the backend?
>
> once this is done, I can scan again from the TWAIN-SANE interface (without calibration)? as this code will affect the actual backend coding is that correct?
>
> ALso - if i screw it all up, can i re-insall and start again?
>
>
> Thanks a million for your help -- I'm never sure if these things work, but there's only one way to find out ..
>
>
> Cheers
>
>
> Ben
>
> On 11 Feb 2011, at 20:46, m. allan noah wrote:
>
>> I did a bit of digging in the source, and it appears that you could
>> set GENESYS_FLAG_NO_CALIBRATION in the Lide60 entry in
>> backend/genesys_devices.c (along with removing the existing
>> calibration flags), and rebuild sane-backends. That should bypass the
>> calibration code.
>>
>> allan
>>
>> On Fri, Feb 11, 2011 at 3:34 PM, m. allan noah <kitno455 at gmail.com> wrote:
>>> On Fri, Feb 11, 2011 at 3:18 PM, Ben Green <greenb1 at mac.com> wrote:
>>>> Fair enough Allan, it's not much use just putting out vague questions really
>>>
>>> <snip>
>>>
>>>> i'm sure its still possible, i just need to find the way!!
>>>
>>> You have no clue how to use the command line or write code, yet you
>>> are sure this scanner is suitable :)
>>>
>>> Many scanners do the calibration automatically, and will choke when
>>> you gut them like this. Fortunately, the Genesys chips require the
>>> software to initialize the calibration, so it should be possible to
>>> bypass that. Unfortunately, the data will look bad. You really need to
>>> do a scan with the assembled scanner, and cache the calibration
>>> values, like genesys backend does for ADF machines. Then you could
>>> re-use that calibration data.
>>>
>>> You might have to hack some code to make these things happen.
>>>
>>> allan
>>> --
>>> "The truth is an offense, but not a sin"
>>>
>>
>>
>>
>> --
>> "The truth is an offense, but not a sin"
>
>



-- 
"The truth is an offense, but not a sin"