On 24/02/12 17:44, ny6p01(a)gmail.com wrote:
On Fri, Feb 24, 2012 at 05:33:44AM -0500, Bob Goodwin wrote:
> On 24/02/12 02:25, Michael Schwendt wrote:
>> yum -y install sane-backends-drivers-scanners
> Did that, still no device found!
>
> However for the first time ever I ignored the warning not to run
> as root and xsane found the Canon LIDE-110 scanner and copied as
> expected! A permissions problem?
>
> That was on this computer, box6.
>
> Box9 showed "sane-backends-drivers-scanners already installed?"
>
> Box9, as root, found the HP-5370 scanner and copied a page as
> expected.
>
> As a matter of interest, my installs are from the XFCE spin on a
> flash drive. I then add the applications I want via yum mostly.
> Don't know why this computer was different from the other but I
> may have inadvertently removed something?
>
> Next to find the permissions problem but this is good progress
> for this early hour when I should be sleeping.
>
> Thanks much for your expert help.
>
> Bob
>
>
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There is a simple way to overcome this limitation. Find out what bus the
printer/scanner is on with lsusb. Then go into /dev/bus/usb and change the
permissions of the bus/device that you need access to.
Terry
That's what I thought too.
[bobg@box6 ~]$ lsusb
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 002 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 003 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 004 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 005 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 001 Device 012: ID 04a9:1909 Canon, Inc. CanoScan LiDE 110
Bus 002 Device 002: ID 046d:c408 Logitech, Inc. Marble Mouse
(4-button)
So I tried changing permissions and then owner.
[root@box6 usb]# ll
total 0
drwxrwxr-x. 2 bobg root 80 Feb 24 11:34 001
drwxr-xr-x. 2 root root 80 Feb 24 10:58 002
drwxr-xr-x. 2 root root 60 Feb 24 04:09 003
drwxr-xr-x. 2 root root 60 Feb 24 04:09 004
drwxr-xr-x. 2 root root 60 Feb 24 04:09 005
There's still "no device available" for user bobg.
Root works, not user.
And even if that did work the device changes whenever I plug in
the scanner, not sure what effect that will have?
Bob