Re: Scanner permission
- From: Rick Stevens <rstevens@xxxxxxxxxxxxxxx>
- Date: Wed, 28 Feb 2007 14:41:51 -0800
On Wed, 2007-02-28 at 13:32 -0600, Mikkel L. Ellertson wrote:
Rick Stevens wrote:
On Wed, 2007-02-28 at 12:19 -0600, Frank Cox wrote:This udev rule is for SCSI scanners, so it probably is not going to
I am attempting to hook a USB scanner to a FC6 box and have the usual problem
of only being able to scan (and find the scanner) as root.
How do I go about fixing this?
Well, there's lots and lots of udev rules regarding scanners. The one
you probably are most interested in is in /etc/udev.d/50-udev.rules.
Look for the stanza:
ACTION=="add", KERNEL=="sg[0-9]*", BUS=="scsi", SYSFS{type}=="[36]", \
SYMLINK+="scanner scanner-%k", MODE="0660"
affect a USB scanner.
and change the MODE bit to "MODE=0666". That will change the scanner'sThis is probably not going to work, because /dev/scanner* and
mode to "rw-rw-rw-" next time it's seen, so unplug it and plug it back
in after the change to /etc/udev.d/50-udev.rules.
/dev/usb/scanner* permissions are controlled by console.perms. So
they will be set to mode 600 and owner root is no-one is logged in
at the console, and to the console owner if there is. But if you are
not getting the scanner symlink, then the problem is probably that
it is not covered by rules in 60-libsane.rules
You're right regarding SCSI vs. USB. I suspect a similar line in udev
might handle USB as well, but I've not tried it. Regardless, couldn't
one could change the /etc/security/console.perms.d/50-default.perms file
to use 666 permissions? All the he's really worried about is allowing
anyone to use the scanner, not who owns it.
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It would probably help to see any log messages generated when you
plug in the scanner.
Mikkel
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- Scanner permission
- From: Frank Cox
- Re: Scanner permission
- From: Rick Stevens
- Re: Scanner permission
- From: Mikkel L. Ellertson
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