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khiloa
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Joined: 27 Jan 2004
Posts: 333
Location: Florence, SC

PostPosted: Sun Apr 10, 2005 11:18 pm    Post subject: Scanner not showing up.. Reply with quote

I plug in my scanner and it doesn't show up in /dev/usb. (Yes it is USB)

from dmesg:

Code:
..
usb 4-2: USB disconnect, address 2
usb 4-2: new full speed USB device using uhci_hcd and address 3
usb 4-2: USB disconnect, address 3
usb 4-2: new full speed USB device using uhci_hcd and address 4
usb 4-2: USB disconnect, address 4
usb 4-1: new full speed USB device using uhci_hcd and address 5
usb 4-1: USB disconnect, address 5
usb 4-1: new full speed USB device using uhci_hcd and address 6
..


I have libUSB, the latest version. Sanebackends version is 1.0.15. Any ideas why it is not showing up at all in /dev/usb?
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FishB8
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Joined: 17 Mar 2003
Posts: 820

PostPosted: Mon Apr 11, 2005 2:24 am    Post subject: Reply with quote

dmesg is not really the place to look. What does
Code:
lsusb
tell you?
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khiloa
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Joined: 27 Jan 2004
Posts: 333
Location: Florence, SC

PostPosted: Sat Apr 23, 2005 8:53 pm    Post subject: Reply with quote

This

Code:
deepthink ~ $ lsmod
Module               Size     Used by
nvidia               3463548  -


ooh lsusb! ..

Code:
bash: lsusb: command not found


:cry:
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Headrush
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Joined: 06 Nov 2003
Posts: 5597
Location: Bizarro World

PostPosted: Mon Apr 25, 2005 3:50 pm    Post subject: Reply with quote

try running lsusb as root.
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lbrtuk
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Joined: 08 May 2003
Posts: 910

PostPosted: Mon Apr 25, 2005 4:54 pm    Post subject: Reply with quote

If you're using libusb the place to look is /proc/bus/usb - not /dev/usb.

Assuming you've got all the permissions right, have you tried sane-find-scanner?
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Headrush
Watchman
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Joined: 06 Nov 2003
Posts: 5597
Location: Bizarro World

PostPosted: Wed Apr 27, 2005 8:35 pm    Post subject: Reply with quote

I recently lost the ability to use my snapscan 1212u which was working for over a year.

lsusb shows the scanner but sane-find-scanner never recognized it. It was NOT a persmission problem but a collision with usbutils. I unmerged that package and re-emerge libusb and scanner reappeared.
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zmiq
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Joined: 13 Jan 2004
Posts: 8

PostPosted: Fri Oct 21, 2005 10:59 am    Post subject: Reply with quote

Hi,

I had the same problem about sane-find-scanner displaying the 'lsusb not available' message.

Then, after
#emerge unmerge usbutils
#emerge libusb
# ACCEPT_KEYWORDS="~x86" emerge sane-backends

I still have the same error, of course always running as root.

Any hints?

Thanks.
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zmiq
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Joined: 13 Jan 2004
Posts: 8

PostPosted: Fri Oct 21, 2005 1:05 pm    Post subject: Reply with quote

adding usb to USE in make.conf, and then re-emerging did the trick.
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