scanner usabel only as root

Message

xerxesmc · Post by **xerxesmc** » Tue Jul 24, 2007 5:43 pm

hi,
i lately needed to scan some stuff and realized, that theres a problem with my usb scanner and my gentooBox:

i plug the scanner in and lsusb can see it.

i wanna use the sane backend (actually dunno if there are others) so i emerged it and ran "sane-find-scanner" and "scanimage -L" as root, both worked, but as normal user only "sane-find-scanner" recognized my scanner...
sounds like some permission problem...so i added my user to the usb and the scanner group, still the same problem
i did some research and found lots of open threads about it besides that some solutions like chmoding the node and stuff, nothing worked here yet.
anyway i scanned as root and put the scanner away, im just curious if theres a solution for that matter or did i miss something?

thx

Rob1n · Post by **Rob1n** » Tue Jul 24, 2007 5:53 pm

Mine shows up fine when the user's in the scanner group. You may need to add your scanner to the /etc/udev/rules.d/99-libsane.rules file - you'll need the IDs from the lsusb command.

PaulBredbury · Post by **PaulBredbury** » Tue Jul 24, 2007 5:55 pm

Write a udev rule for it, e.g.:

/etc/udev/rules.d/91-local.rules

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BUS=="usb", SYSFS{product}=="CanoScan", GROUP="scanner", MODE="0660"

xerxesmc · Post by **xerxesmc** » Tue Jul 24, 2007 7:54 pm

how do u got ur SYSFS information? i only got this rule using udevinfo

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BUS=="usb", ATTR{product}=="CanoScan", MODE="660", GROUP="scanner"

PS: by plugging in the scanner i get a new node in /dev/bus/usb/... and it has the owner "root" and the group "scanner" even without the udevrule i just provided.

still cant use the scanner as regular user though

PaulBredbury · Post by **PaulBredbury** » Tue Jul 24, 2007 8:02 pm

ATTR is just the new name for SYSFS.

/etc/udev/rules.d/99-libsane.rules already sets up a reasonable default for most scanners.

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grep scanner /etc/udev/rules.d/*

GROUP="scanner" is a huge hint that you should be in the scanner group.

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gpasswd -a yourname scanner

Then re-login for it to take effect.

bl00dseeker · Post by **bl00dseeker** » Wed Aug 01, 2007 11:22 am

i still have the problem that xsane doesn't use my usb scanner. But i know that it did some time ago as user.
So i have user in the group scanner and did a relogin. I can start "sane-find-scanner" as user and it detects my scanner:
"found USB scanner (vendor=0x03f0, product=0x4d11) at libusb:002:015"

but when i start xsane it says no scanner found, that only works as root. So i don't understand what has change since some updates that now my scanner doesn't work with a user account although "sane-find-scanner" founds him. And yes the user is in the usb group too...

I really don't know what to do

when i run "hp-check" just 2 warnings with perl dependencies come and this:
"Checking output of 'scanimage -L'... scanimage: hp-option.c

hp_optset_fix_geometry_options: Assertion `tl_x && tl_y && br_x && br_y' failed."

This error comes when i do it as root or user. Since i put the user in the group "lp" now "scanimage -L" works.

It is a HP PSC1410, printing with cups works fine

paladin-zero · Post by **paladin-zero** » Sun Aug 19, 2007 5:37 pm

I added my user to the lp group, ran hp-check again, which indicated that the user is in the lp group, but scanimage -L still fails to find the scanner unless I am root.

This is the third time I have had to reconfigure my scanner because it stopped working after an update. I'm in the lp, usb, and scanner group. What more does Gentoo want before it will grant my user access to the scanner again?

paladin-zero · Post by **paladin-zero** » Sun Aug 19, 2007 6:05 pm

Ok, apparently opening a new konsole after adding my user to the lp group, and running hp-check was not enough. I rebooted, and now scanimage -L finds my scanner, and kooka is working again. And it only took the best part of a sunny sunday morning to get it working again.