Bug 139203 - scanimage does not see libusb scanner for non-root user
Summary: scanimage does not see libusb scanner for non-root user
Status: CLOSED DUPLICATE of bug 121511
Alias: None
Product: Fedora
Classification: Fedora
Component: sane-backends
Version: 3
Hardware: i586
OS: Linux
Target Milestone: ---
Assignee: Tim Waugh
QA Contact:
Depends On:
TreeView+ depends on / blocked
Reported: 2004-11-13 23:40 UTC by David Lerner
Modified: 2007-11-30 22:10 UTC (History)
1 user (show)

Clone Of:
Last Closed: 2004-11-16 09:20:16 UTC

Attachments (Terms of Use)

Description David Lerner 2004-11-13 23:40:53 UTC
From Bugzilla Helper:
User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.7.5)
Gecko/20041111 Firefox/1.0

Description of problem:
sane-find-scanner shows: found USB scanner (vendor=0x04b8 [EPSON],
product=0x0110 [EPSON Scanner]) at libusb:001:003 for both root and
non-root user.

scanimage -L shows: device `epson:libusb:001:003' is a Epson GT-8200
flatbed scanner for root but: No scanners were identified. for
non-root user.

scanimage -d epson:libusb:001:003>image produces image for root user
but scanimage: open of device epson:libusb:001:003 failed: Invalid
for non-root user.

Version-Release number of selected component (if applicable):

How reproducible:

Steps to Reproduce:
1. Log in as non-root user
2. Attach and power-on Epson USB scanner
3. Run scanimage -L

Actual Results:  No scanners were identified

Expected Results:  device `epson:libusb:001:003' is a Epson GT-8200
flatbed scanner

Additional info:

Comment 1 Teppo Turtiainen 2004-11-14 13:27:40 UTC
I'm having the same problem with HP PSC 2175 scanner.

Comment 2 David Lerner 2004-11-14 20:08:19 UTC
Scanner ownership and permissions are defined in
/etc/udev/permissions.d/50-udev.permissions. Ownership should belong
to console user. A work around, since I don't know how to fix
ownership, is to set permissions for usb/scanner* to 0666.

Comment 3 Tim Waugh 2004-11-15 09:22:09 UTC
What about when you switch off, and then on, the scanner?

Comment 4 David Lerner 2004-11-16 03:47:06 UTC
No switch on scanner, but disconnecting and reconnecting either power
or usb cable make the scanner accessable to a non-root user.

My earlier observation about permissions was probably a
misinterpretation of steps that I took to get the scanner working.

On one of many tests the scanner was accessable without having to
disconnect and reconnect it.

Comment 5 Tim Waugh 2004-11-16 09:20:16 UTC

*** This bug has been marked as a duplicate of 121511 ***

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