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"
