Hi, This is the current TODO list from the SANE CVS. Please contact me (or fix it yourself) if an entry is no longer valid. Additions are also appreciated.
Bye, Henning TODO (2002-08-29) ******** todo ******** backends -------- * Add new backends (+ means: scheduled for version 1.0.9) - hp4200 http://hp4200-backend.sourceforge.net/ + Relisys Scorpio Super 3 - VM3575 (wip) http://fz.eryx.net/sane/#teco2 - Genius Vivid Pro USB, Colorado USB 19200, Visioneer OneTouch 7600 IBM IdeaScan 2000 USB http://homepages.paradise.net.nz/stevenel/scanner/ - Hewlett-Packard ScanJet 3300C / 3400C and 4300C (wip) http://sourceforge.net/projects/hp3300backend * All backends should check for TL_X < BR_X and TL_Y < BR_Y to avoid segfaults or even scanner damage. This should NOT be done in sane_control_option, it should be possible to temporary set TL_X > BR_X or TL_ > BR, otherwise it is hard for a frontend to set the correct values. * qcam: - implement auto mode for brightness and black-level (don't just advertise it!) Actually, implement an auto "backend" instead that can be plugged in front of any backend with brightness/contrast etc controls - figure out how/if to support bulb mode - convert to use sanei_pio functions instead of direct port access. - The result of locking isn't checked --> does it make sense at all? * dll: - Rewrite to use libtool ltdl library. Is this necessary? It seems to work... * dc210, dc240, gphoto2, and jpeg stuff: move sanei_* functions to sanei/ (if they are necessary). That's probably for SANE2. * v4l: - Problems (crash) with more than one video card. It looks like the two different cards are identified as the same card. - Geometry support is missing - Frequency setting is missing * Fix backends where sane_exit() does not release memory allocated by sane_get_devices(). - abaton - agfafocus - apple - as6e - bh - canon - coolscan - dmc - qcam - ricoh - s9036 - sp15c - tamarack - etc? * as6e: attach: memory (dev + dev-sane.name) isn't freed if driver isn't found. * net: add IPv6 support. * Fix warnings about DBG calls (try gcc 3.x to get these warnings): - umax1220u * bh: Suspicious loop ("../../backend/bh.c", line 1923: warning: end-of-loop code not reached), see sane-devel. * coolscan: Lots of compilation warnings (e.g. "../../backend/coolscan-scsidef.h", line 160: warning: initialization type mismatch; empty declarations), see sane-devel. * Check the return value of wait() and waitpid(). This is important, if the status value is checked for e.g. WIFEXITED after the call of wait() or waitpid(). Both functions may fail if the frontend already did a wait for the children. * remove ptal support from configure and hp backend doc --- * Add doxygen documentation for the remaining sanei files: - sanei_pio.h - sanei_pv8630.h - sanei_wire.h * sane.tex: - Define the return values for sane_init? Define the consequences if sane_init doesn't return SANE_STATUS_GOOD. - Add a warning/explanation about problems with sane_get_select_fd, Unix select() calls and sane_cancel. - Add some text about the meaning of bits in 1-bit modes. - Define, how to handle SANE_CAP_ADVANCED for groups. * desc files: - Make sure, that the manufacturer (and model) names use the same spelling: - umax, plustek (Genius, KYE-Genius) - plustek, umax_pp, avision, hp, hpsj5s (Hewlett-Packard instead of HP) - Check URLs: - umax (http://www.heidelberg-cps.com/ , http://support.umax.com/ , http://www.umaxweb.com.tw/ ) - Mark scanners with ":status :untested" if they are untested by the author or users: - canon630u (add 636 as :untested (from manpage)?) - Remove unsupported scanners from the list or at least mark them with ":status :unsupported": - mustek_pp * scanimage: - Add doku for --icc-profile - Add link to gamma4scanimage frontends --------- * saned: - saned times out after 60 minutes. Check if the watchdog timer is really necessary (e.g. to avoid blocking scanners by one user). Maybe add a command line option to saned to set the timeout. Otherwise turn on TCP keep alive (where available) and (maybe) check the connection from server side. - Add IPv6 support. - Add support for IP ranges in saned.conf (like 10.0.0.0/8)? * scanimage: Check range of width and height. scanimage just uses the ranges from br-x and br-y but this is wrong for tl-x and tl-y != 0 and for SANE_UNIT_PIXEL. * scanimage: add option to avoid scanning (for setting options only) sanei ----- * sanei_scsi: Think about a completely new interface. Details are in http://www.mostang.com/pipermail/sane-devel/2002-January/001995.html . * create sanei_parport_* and remove all inb, outb,... from all backends; use libieee1284 if available (see http://people.redhat.com/twaugh/libieee1284/). Or just include this library into sane. * Check if the device file has the right type before accessing it. E.g. check for major/minor numbers to avoid accessing a USB file as SCSI device. This is finished for sanei_scsi.c/Linux and sane-find-scanner. Patches for other platforms are welcome. * sanei_scsi (Linux): Make sure that the SCSI driver is loaded when checking for scanners. Ideas: Open/close all the /dev/sg* files in sanei_scsi.c, dll.c or in a new backend. platform-specific ----------------- * SCSI access doesn't seem to work on Linux/Sparc. See emails from Tomislav Renic on sane-devel (2001-09-21). * Really fix all the parport/inb/outb compilation issues which break porting to some non-i386 platforms. * Add AC_OBJEXT and AC_EXEEXT to configure.in for automatically adding the correct extensions (e.g. for OS/2). Also update the Makefiles accordingly. * Add support for semaphores also for OS/2 (currently used in snapscan). * Add support for Mac OS X in sanei_scsi.c. * Find out why USB on *BSD only works once (at least for Mustek scanners and OHCI). misc ---- * sane-config: add options "--exec-prefix=...." and "--prefix=..." compareable to gtk-config * Make output of sane-find-scanner more flexible. See scanimage -f for details. * Check licence issues with getopt*.c and md5.c. These files are GPLed, so if they are used in backends, their SANE exception will be void. * Can we link external libraries only to backends that need them? See http://fz.eryx.net/sane/#configure. * Fix japi to run on current jdks. Swing is now included, and there is a segfault in Sane.c.