On Tue 12 Sep 2017 at 21:21:33 +0200, MENGUAL Jean-Philippe wrote: > Le 12/09/2017 à 11:22, Brian a écrit : > > On Mon 11 Sep 2017 at 19:23:09 +0200, MENGUAL Jean-Philippe wrote: > > > >> Two scanners: 1=Epson; 2=canon. 1 works fine, as root and as user. Canon > >> works as root but not as user, scanimage and sane-find-scanner do not > >> find it. > > > > Do we assume your system is a stretch one? Please post the model names > > of the scanners. > > > I try on Stretch and Buster. > > We have Epson Perfection 3490 and Canon Lide 120. > > >> While /dev/bus/usb/001/0XX is owned by root:root,, but as well by the > >> scanner group (where my user is), it is not the case with Canon, the > >> device is owned only by root:root. > > > > On jessie and stretch a user is not required to be in the scanner group. > > > > Post the output of 'ls -l /dev/bus/usb/*/*' for both scanners. > > For Epson: > crw-rw-r-- 1 root root 189, 136 sept. 12 21:07 /dev/bus/usb/002/009 > crw-rw-r--+ 1 root root 189, 28 sept. 12 21:06 /dev/bus/usb/001/029 > crw-rw-r-- 1 root root 189, 27 sept. 12 20:56 /dev/bus/usb/001/028 > crw-rw-r-- 1 root root 189, 1 sept. 12 20:56 /dev/bus/usb/001/002 > crw-rw-r-- 1 root root 189, 129 sept. 12 20:56 /dev/bus/usb/002/002 > crw-rw-r-- 1 root root 189, 0 sept. 11 18:56 /dev/bus/usb/001/001 > crw-rw-r-- 1 root root 189, 128 sept. 11 18:56 /dev/bus/usb/002/001 > crw-rw-r-- 1 root root 189, 131 sept. 11 18:56 /dev/bus/usb/002/004 > crw-rw-r-- 1 root root 189, 2 sept. 5 20:04 /dev/bus/usb/001/003
This is exactly what you would expect for a supported scanner. In particular, the ACL: crw-rw-r--+ 1 root root 189, 28 sept. 12 21:06 /dev/bus/usb/001/029 > For Canon: > crw-rw-r-- 1 root root 189, 136 sept. 12 21:09 /dev/bus/usb/002/009 > crw-rw-r-- 1 root root 189, 29 sept. 12 21:09 /dev/bus/usb/001/030 > crw-rw-r-- 1 root root 189, 27 sept. 12 20:56 /dev/bus/usb/001/028 > crw-rw-r-- 1 root root 189, 1 sept. 12 20:56 /dev/bus/usb/001/002 > crw-rw-r-- 1 root root 189, 129 sept. 12 20:56 /dev/bus/usb/002/002 > crw-rw-r-- 1 root root 189, 0 sept. 11 18:56 /dev/bus/usb/001/001 > crw-rw-r-- 1 root root 189, 128 sept. 11 18:56 /dev/bus/usb/002/001 > crw-rw-r-- 1 root root 189, 131 sept. 11 18:56 /dev/bus/usb/002/004 > crw-rw-r-- 1 root root 189, 2 sept. 5 20:04 /dev/bus/usb/001/003 There is no ACL for any device. But the Canon Lide 120 is a supported device for SANE according to http://www.sane-project.org/sane-mfgs.html#Z-CANON > FYI (and without I do any configuration anywhere, I just plug in scanners): > getfacl /dev/bus/usb/001/031: > > Canon: > getfacl : suppression du premier « / » des noms de chemins absolus > # file: dev/bus/usb/001/031 > # owner: root > # group: root > user::rw- > group::rw- > other::r-- You would want to have "user:jp:rw-", as you do with the Epson. > getfacl /dev/bus/usb/001/032 (EPSON): > getfacl : suppression du premier « / » des noms de chemins absolus > # file: dev/bus/usb/001/032 > # owner: root > # group: root > user::rw- > user:jp:rw- > group::rw- > group:scanner:rw- > mask::rw- > other::r-- The file /lib/udev/rules.d/60-libsane.rules does not have an entry for the 120. See what happens with scanner detection if you add ATTRS{idvendor}=="04a9", ATTRS{idProduct}="x", ENV{libsane_matched}="yes" to 60-libsane.rules? You get "x" from the 'lsusb' command. -- Brian.
