[sane-devel] root gets correct 'scanimage -L' results, but user does not, even if I hack permissions

Giuseppe Sacco giuseppe at eppesuigoccas.homedns.org
Mon Mar 24 16:43:46 UTC 2008


On Mon, 24 Mar 2008 08:29:09 -0700 Rusty Carruth <rustyc at descomp.com> wrote:
> I asked this a while back and heard zilch, so I'll try again.
> Please do not be put off by my email address!  I'm a real
> person, asking a real question!
[...] 
> If I chmod the scanner device in /proc/bus/usb to 666 I still get the
> same results from scanimage as user.
> 
> Also, no matter what I try in /etc/udev, I get permissions 644 for the
> device associated with the SM3600.  Here's udev:

I believe that udev is setting permissions on /dev/bus/usb/* and not in /proc/bus/usb/*
I also think libusb is using the /dev/bus/usb/* paths in order to access devices. Please check access rights there.
[...]

Bye,
Giuseppe



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