From yevg at pisem.net  Fri Jul 13 22:19:07 2007
From: yevg at pisem.net (Yawhen Kasarzhewski)
Date: Sat, 14 Jul 2007 01:19:07 +0300
Subject: [sane-standard] sane troubles when running as a user
Message-ID: <4697FA5B.8020405@pisem.net>

Hello,

I have next trouble. When running as root everything is fine:

root at warp:~# sane-find-scanner |grep libusb
found USB scanner (vendor=0x055f, product=0x021d [USB Scanner], 
chip=GT-6816) at libusb:004:002
root at warp:~# scanimage -L
device `gt68xx:libusb:004:002' is a Mustek BearPaw 2400 CU Plus flatbed 
scanner

However, when running as user I get this:

phaoost at warp:~$ sane-find-scanner |grep libusb
found USB scanner (vendor=0x055f, product=0x021d, chip=GT-6816?) at 
libusb:004:002
phaoost at warp:~$ scanimage -L

No scanners were identified. If you were expecting something different,
check that the scanner is plugged in, turned on and detected by the
sane-find-scanner tool (if appropriate). Please read the documentation
which came with this software (README, FAQ, manpages).

Here is debug output in scanimage:


phaoost at warp:~$ SANE_DEBUG_GT68XX=255 scanimage -L
[sanei_debug] Setting debug level of gt68xx to 255.
[gt68xx] SANE GT68xx backend version 1.0 build 83 from sane-backends 
1.0.18-cvs
[gt68xx] sane_init: authorize != null
[gt68xx] sane_init: debug options are enabled, handle with care
[gt68xx] sane_init: little endian machine
[gt68xx] sane_init: reading config file `gt68xx.conf'
[gt68xx] sane_init: config file line 119: trying to attach `usb 0x055f 
0x021d'
[gt68xx] attach: start: devp != NULL, may_wait = 0
[gt68xx] attach: trying to open device `libusb:004:002'
[gt68xx] gt68xx_device_new: enter
[gt68xx] gt68xx_device_new:: leave: ok
[gt68xx] gt68xx_device_open: enter: dev=0x645d00
[gt68xx] gt68xx_device_open: sanei_usb_open failed: Access to resource 
has been denied
[gt68xx] attach: couldn't open device `libusb:004:002': Access to 
resource has been denied
[gt68xx] gt68xx_device_free: enter: dev=0x645d00
[gt68xx] gt68xx_device_free: freeing dev
[gt68xx] gt68xx_device_free: leave: ok
[gt68xx] somewhere: attach (devname, &dev, 0): Access to resource has 
been denied
[gt68xx] sane_init: firmware /usr/share/sane/gt68xx/PS2Dfw2.usb can't be 
loaded, set device first
[gt68xx] sane_init: exit
[gt68xx] sane_get_devices: start: local_only = false
[gt68xx] sane_get_devices: exit

No scanners were identified. If you were expecting something different,
check that the scanner is plugged in, turned on and detected by the
sane-find-scanner tool (if appropriate). Please read the documentation
which came with this software (README, FAQ, manpages).
[gt68xx] sane_exit: start
[gt68xx] sane_exit: exit

Here some more info:

phaoost at warp:~$ ll -a /proc/bus/usb/004/
total 0
drwxrwxrwx 2 root phaoost  0 2007-07-12 14:13 .
drwxr-xr-x 9 root root     0 2007-07-12 14:13 ..
-rw-rw-rw- 1 root phaoost 43 2007-07-12 14:13 001
-rw-rw-rw- 1 root phaoost 50 2007-07-12 14:13 002
phaoost at warp:~$ ll -a /usr/share/sane/gt68xx/
total 16
drwxr-xr-x 2 root root   41 2007-07-11 18:01 .
drwxr-xr-x 4 root root   85 2007-07-11 20:09 ..
-rw-r--r-- 1 root root 7477 2007-07-11 18:01 PS2Dfw2.usb
-rw-r--r-- 1 root root 7410 2007-07-11 18:01 PS2Dfw.usb
phaoost at warp:~$ lsusb |grep Mustek
Bus 004 Device 002: ID 055f:021d Mustek Systems, Inc. BearPaw 2400 CU Plus

Not sure where is the trouble, please help. Many thanks.