Initial import of sane-backends version 1.0.24-1.2

1 files changed, 46 insertions, 0 deletions

diff --git a/tools/hotplug-ng/README b/tools/hotplug-ng/README
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+hotplug/hotplug-ng hook for sane-backends
+-----------------------------------------
+
+The libsane.hotplug script is intended to replace the existing hotplug scripts,
+as those won't be usable with the new hotplug-ng. The libsane.hotplug script
+works with both hotplug and hotplug-ng.  For current Linux kernels, "udev" is
+state of the art, see the "udev" directory instead.
+
+This script is provided in the hope that it will be useful, simpler, faster and
+more extensible than the current usermap approach.
+
+
+INSTALLATION
+------------
+
+Install libsane.hotplug in /etc/hotplug/usb, and make it executable.
+
+Create the directory /etc/sane.d/hotplug and copy libsane.db there.
+
+
+FILE FORMAT
+-----------
+
+The libsane.db contains 5 tab-separated fields:
+
+0xVVVV<tab>0xPPPP<tab>root:scanner<tab>0660<tab>optional_script
+
+Fields:
+ - vendor ID
+ - product ID
+ - ownership (user:group)
+ - permissions
+ - path of an optional script to run (it can be omitted)
+
+
+USAGE
+-----
+
+When run by hotplug/hotplug-ng, the libsane.hotplug script will grep for
+^0xVVVV[[:space:]]0xPPPP in /etc/sane.d/hotplug/*.db. If a match is found,
+the settings are applied to the device.
+
+The optional script is then run; this script can access the environment
+variables set by hotplug/hotplug-ng (see the documentation). The libsane.hotplug
+script will also set and export the DEVVID and DEVPID variables, containing the
+vendor and device ID of the scanner (of the form VVVV and PPPP).