== Mustek 1200UB Scanner ==

=== There is no kernel module ===

The Mustek 1200UB scanner does not require a kernel driver module, instead using the [[libsane]] userspace library for operation.

=== Required packages ===

The following package suites are required to operate the flatbed scanner:

* [[sane]]
* [[sane-utils]]
* [[libsane]]

=== Checking the scanner for connectivity ===

The [[lsusb]] tool should show the scanner attached to the [[usb]] port:

 lsusb
 Bus 001 Device 003: ID 055f:0006 Mustek Systems, Inc. ScanExpress 1200 U

The sane-find-scanner tool should identify the scanner as usable:

 sane-find-scanner|grep "^found"
 found USB scanner (vendor=0x055f, product=0x0006, chip=MA-1017) at libusb:001:003

=== System groups for scanner users ===

In order to be able to operate the scanner as a normal user, it is necessary to become a member of the scanner system group. 

As [[root]], create this group, if it does not exist on the system:

 groupadd -g 23 scanner

As [[root]], add users to the scanner group:

 gpasswd -a foobar scanner

=== Configuration of sane for utilization of the scanner ===

The !/etc/sane.d/mustek_usb.conf configuration file should contain the following entries:

 # Autodetect 1200 UB and Trust Compact Scan USB 19200
 usb 0x055f 0x0006
 
 /dev/bus/usb/001/003
 option 1200ub

Notice that 001 and 003 correspond to the USB bus and device numbers and must be set to values that match the numbers identified by [[lsusb]] above.

=== Making the usbfs filesystem mountable ===

The [[libsane]] userspace library can only access the scanner if it is not claimed by the kernel scanner driver. The [[usbfs]] filesystem must be mounted in order for [[libsane]] to be able to operate. The !/etc/fstab configuration file should contain the following entry:

 none /proc/bus/usb usbfs defaults  0  0

=== Creating the udev entries ===

It is now necessary to create the /etc/udev/rules.d/libsane.rules file with entries as follows:

 # This file was automatically created based on description files (*.desc)
 # by sane-desc 3.5 from sane-backends 1.0.21 on Sun Dec 12 16:18:21 2010
 #
 ACTION!="add", GOTO="libsane_rules_end"
 ENV{DEVTYPE}=="usb_device", GOTO="libsane_create_usb_dev"
 SUBSYSTEMS=="scsi", GOTO="libsane_scsi_rules_begin"
 SUBSYSTEM=="usb_device", GOTO="libsane_usb_rules_begin"
 SUBSYSTEM!="usb_device", GOTO="libsane_usb_rules_end"

 # Kernel >= 2.6.22 jumps here
 LABEL="libsane_create_usb_dev"

 # For Linux >= 2.6.22 without CONFIG_USB_DEVICE_CLASS=y
 # If the following rule does not exist on your system yet, uncomment it
 # ENV{DEVTYPE}=="usb_device", MODE="0664", OWNER="root", GROUP="root"

 # Kernel < 2.6.22 jumps here
 LABEL="libsane_usb_rules_begin"

 # Mustek ScanExpress 1200 UB | Trust Compact Scan USB 19200
 ATTRS{idVendor}=="055f", ATTRS{idProduct}=="0006", MODE="0664", GROUP="scanner", ENV{libsane_matched}="yes"

 # The following rule will disable USB autosuspend for the device
 ENV{libsane_matched}=="yes", RUN+="/bin/sh -c 'test -e /sys/$env{DEVPATH}/power/
 level && echo on > /sys/$env{DEVPATH}/power/level'"

 LABEL="libsane_usb_rules_end"

 SUBSYSTEMS!="scsi", GOTO="libsane_scsi_rules_end"

 LABEL="libsane_scsi_rules_begin"
 # Generic: SCSI device type 6 indicates a scanner
 KERNEL=="sg[0-9]*", ATTRS{type}=="6", MODE="0664", GROUP="scanner", ENV{libsane_matched}="yes"
 # Some scanners advertise themselves as SCSI device type 3
 KERNEL=="sg[0-9]*", ATTRS{type}=="3", ATTRS{vendor}=="HP", ATTRS{model}=="C7670A", MODE="0664",  GROUP="scanner", ENV{libsane_matched}="yes"

 LABEL="libsane_scsi_rules_end"

 LABEL="libsane_rules_end"

==== A template file may be available ====

Note that a template file may be available in the /lib/udev/rules.d directory. Do not symlink this file. Instead copy it to !/etc/udev/rules.d/libsane.rules.

=== The scanner will be available for use when the system is restarted ===

The [[udev]] system will need to evaluate the new rules, and [[fstab]] will need to be evaluated in order for the above changes to take effect. This will occur automatically, when the system is next rebooted.

=== Producing a test scan ===

A test scan can be produced by placing a picture into the scanner and using the following command:

 scanimage --mode color --resolution 300 >image.pnm