diff options
Diffstat (limited to 'debian/libsane.README.Debian')
| -rw-r--r-- | debian/libsane.README.Debian | 176 |
1 files changed, 0 insertions, 176 deletions
diff --git a/debian/libsane.README.Debian b/debian/libsane.README.Debian deleted file mode 100644 index 2e69621..0000000 --- a/debian/libsane.README.Debian +++ /dev/null @@ -1,176 +0,0 @@ -libsane (sane-backends) for Debian : ------------------------------------- - -GENERAL -------- - -The configuration files for Debian releases of SANE are located in /etc/sane.d. - -The dll pseudo-backend is responsible for loading other SANE backends that -provide support for the actual hardware. Which backends are loaded is -determined by the contents of the /etc/sane.d/dll.conf file. The dll -pseudo-backend also checks for dll.conf snippets in /etc/sane.d/dll.d; any -file in this directory that doesn't look like a backup file will be treated -as a configuration snippet. - -This facility is used by packages providing external backends (like -libsane-extras, hpoj or hplip) to "register" the backends they provide without -much hassle. - -Each backend has a configuration file which specifies which devices, -access methods, options etc. should be used by this backend. The format -and content of each configuration file is documented in the manpage for -the backend, e.g. sane-plustek (5). - -For USB and some SCSI scanners, the parameters can be auto-detected, and -manual configuration is not required. If the auto-detection fails, read -the next paragraph. Again, see the manpage for your backend for more -information. - -For SCSI devices (mostly scanners), the configuration files use the -/dev/scanner device; /dev/scanner is a symbolic link to the appropriate -SCSI device node. It's up to you to create this symbolic link, once you -will have determined which device node it needs to point to. Use the -sane-find-scanner command in the sane-utils package to determine which -SCSI device your scanner is attached to. The sane-find-scanner utility -also discovers USB scanners. - -It can be a good idea to try running sane-find-scanner as root to ensure -there will be no permissions problems while attempting to detect your -devices. - - -DOCUMENTATION -------------- - -For information on configuring and trouble-shooting the various SANE -components, please refer to the manual pages listed below: - - Regarding: Read: - ----------------- ------------------------------------------ - General sane(7) -- your starting point - - scanimage scanimage(1) - xscanimage xscanimage(1) - saned saned(8) - xcam xcam(1) - - Dynamic loading sane-dll(5) - Backends See sane-<backend name>(5). Each backend - comes with a manual page in section 5 of - the manual system. - - -SETUP ------ - -In this day and age, SANE integrates with udev and ConsoleKit seemlessly; this -means users physically logged into the machine (as opposed to users logged in -remotely via SSH) have access to the scanners by default. - -The solution proposed below is a legacy setup that remains valid for sharing -scanners with saned or for systems that don't use ConsoleKit. Note that this is -only a proposed solution, you are free to come up with and implement whatever -access control mechanism you see fit. - -This package added a scanner group to your system. We recommend you add to -this group the users that should be able to access your scanner(s), and -make sure the appropriate device files (eg. /dev/sg0, ...) are owned by root -and the scanner group, with permissions set to 0660. - -For USB and SCSI scanners, the permissions will be automatically set by udev; -the /lib/udev/rules.d/60-libsane.rules file contains a list of USB and SCSI -scanners supported by SANE. - -The udev rules now use ACLs instead of standard UNIX permissions; the scanner -group is added to the ACLs for the corresponding device(s) with read+write -permissions. - -If your scanner is missing from the list, do NOT modify this file; it is not -a configuration file, which means your changes WILL be overwritten upon -upgrade. Instead, create /etc/udev/rules.d/60-libsane.rules and add the udev -rule for your scanner in this file. /lib/udev/rules.d/60-libsane.rules will -then be ignored by udev and /etc/udev/rules.d/60-libsane.rules will be used -instead. - -Feel free to file a bug report (severity wishlist) against the libsane package -to get your scanner added; please mention which backend you use and how well -the scanner is supported (basic, good, ...). - - Note: please do not file bugs requesting the addition of scanners that - aren't supported by the libsane package. For these devices, bugs should - be filed against the Debian package providing support for the device, if - such a package does exist. - -udev will automatically set up the permissions and ownership on the device -node corresponding to your scanner according to the rules defined in the -libsane.rules file (default is root:scanner, 0664). If you want to execute -a script when your scanner is plugged in, add RUN+="/path/to/script" to the -rule matching your scanner. - - -TROUBLESHOOTING ---------------- - -If your scanner does not work, edit the file /etc/sane.d/dll.conf. -Verify that your scanner is not commented out. You may need to -comment out all other scanners in dll.conf. It shouldn't matter, but -sometimes it does. - -The most common cause for a non-working scanner is inappropriate -permissions on the device. So your first reflex should be to check the -permissions of the device used to access your scanner, e.g. /dev/sg0 -or the device pointed to by /dev/scanner. - - -If you encounter any problems with getting your device(s) recognized, -try setting the various environment variables that are there to assist -in debugging such problems. The environment variables are documented -in the relevant manual pages. For example, to get the maximum amount -of debug information when testing a Mustek scanner, set environment -variables SANE_DEBUG_DLL, SANE_DEBUG_MUSTEK, and SANE_DEBUG_SANEI_SCSI -to 128 and then invoke scanimage or whatever program you're trying to -debug. For a Mustek SCSI scanner at /dev/scanner, you might want to -invoke scanimage as follows: - - scanimage -d mustek:/dev/scanner -h - -If this works, you could try to acquire an image with: - - scanimage -d mustek:/dev/scanner > t.pnm - -If you are not sure what generic SCSI device your scanner is connected -to, try the command sane-find-scanner (sane-utils package). It is -normally sufficient to invoke the program without any arguments. Invoking -this command should produce output similar to this: - - $ sane-find-scanner - sane-find-scanner: found "MUSTEK MFC-06000CZ 1.01" at device /dev/sge - -sane-find-scanner will help you discover your USB scanner, too. - - -REPORTING BUGS --------------- - -When reporting a bug, be it to the SANE developers or to the Debian bug -tracking system, pleases always provide: - - the full version of libsane - - the backend you're using - - the configuration of the backend - - the debug output, obtained by setting the environment variable - SANE_DEBUG_<backendname> to a value of 255 (see above, TROUBLESHOOTING) - -Without that, your bug report will take longer to be processed, because we'll -need to ask you for each of these items. Please help us help you. - - -UNSUPPORTED DEVICES AND SPECIFIC NOTES --------------------------------------- - -If your scanner (or camera, or whatever) is not supported by the regular -SANE distribution, have a look at the libsane-extras package which contains -some backends not yet included in the regular SANE distribution. - - --- Julien BLACHE <jblache@debian.org>, Wed, 16 Feb 2011 19:00:12 +0100 |