Epson Perfection 1670

[herhin]

Using opensuse 11.1 kooka didn't detect the scanner 1670 if I login as normal user. If I am root kooka finds the scanner and works fine.

Where is the problem?

herhin

[oldcpu]

Originally Posted by herhin

Using opensuse 11.1 kooka didn't detect the scanner 1670 if I login as normal user. If I am root kooka finds the scanner and works fine.

Where is the problem?

I encountered a permissions issue on the scanner functionality in my mothers all-in-one-PC under openSUSE-11.1. The thread was here:
HP all-in-one Deskjet F4280 - openSUSE Forums

My specific post here:
openSUSE Forums - View Single Post - HP all-in-one Deskjet F4280

By adding the regular users to group "lp" I was able to scan successfully with kooka under KDE-3.5.10 on openSUSE-11.1.

Note if you add your regular user to group "lp", you probably should restart (or completely log out of your desktop and log out of Linux - probably quicker to restart).

[dragonbite]

Is it only for multifunction machines, or primarily Epson machines?

[herhin]

As you suggested I added the group ls and even root to the user but with no effect.

This is what sane-find-scanner reports if I am normal user:

found USB scanner (vendor=0x0ccd, product=0x0038) at libusb:004:005
found USB scanner (vendor=0x04b8, product=0x011f) at libusb:004:002
# Your USB scanner was (probably) detected. It may or may not be supported by
# SANE. Try scanimage -L and read the backend's manpage.

and this if I am root:

found USB scanner (vendor=0x0ccd [TerraTec GmbH], product=0x0038 [Cinergy T2]) at libusb:004:005
found USB scanner (vendor=0x04b8 [EPSON], product=0x011f [EPSON Scanner]) at libusb:004:002
# Your USB scanner was (probably) detected. It may or may not be supported by
# SANE. Try scanimage -L and read the backend's manpage.

KDE is 4.1.3

herhin

[dragonbite]

Is there a way to determine the /dev/ location of the device?

For example, whenever I first go to do DV editing on my system I have to plug in the camcorder and then chmod the /dev/raw1394 in order to access it.

chmod 777 /dev/raw1394

After that, then the camcorder is fully accessible.

[oldcpu]

Originally Posted by herhin

As you suggested I added the group ls and even root to the user but with no effect.

You did restart afterward, to ensure the new user permissions were fully applied?

This could be a KDE-4.1.3 bug. It may be worth your while to spend some time surfing on this anomalous behaviour to see if it is KDE specific.

[brunomcl]

Originally Posted by herhin

As you suggested I added the group ls and even root to the user but with no effect.

herhin

Group lp, not ls

[herhin]

My investigations about this topic give the following results:

1. Using lshal I found the device name as /dev/bus/usb/004/002. Changing the permission with root by chmod 666 002, running kooka as user starts the scanner.
2. After Restart and login as user: The scanner didn't start. Checking the permission of /dev/bus/usb/004/002 showed 644.
Searching for the device name by lshal shows another link within /dev/bus/usb/xxx/xxx, so it would be necessary to make the changes after each start of the system, which would be very bad.

So what to do???

I didn't have this problem with 11.0.

herhin

[deano_ferrari]

Have a look at /etc/udev/rules.d for the scanner rules. I'm running openSUSE 11.0, so there may be differences, but I have 55-libsane.rules containing a list of supported scanners. The scanner attributes are listed along with 'lp' group assigned and permission settings. I also have a rule specifically for my Epson CX5500 called 70-libsane.rules:

SYSFS{idVendor}=="04b8", SYSFS{idProduct}=="083f", MODE="664", GROUP="users"

You can see, that this rule has 'users' group assigned, but I could easily change this, and the permissions if I desired. You could create a custom rule for your device incorporating the desired permissions, and group. Name it something like 95-myscanner.rules to make sure it gets processed last.

[herhin]

Hi deano_ferrari,

your reply gives the solution!! Thank you!
I checked the file 55-libsane.rules and compared it with the 11.0-version. Curious enough, in 11.1 the rule for the 1670 is commented out. Why??? The GROUP is lp, which I added to the user before. Removing the #, trying kooka as user, heureka it works!

herhin