[sane-devel] sane-devel Digest, Vol 173, Issue 25

Yuri Chornoivan yurchor at ukr.net
Tue Nov 26 19:50:04 GMT 2019 

вівторок, 26 листопада 2019 р. 21:10:41 EET ви написали:
> Hi Yuri -
> 
> To follow up - I created the and even gave it execute permissions:
> -rw-r--r-- 1 root root 757 Oct 16 13:03 60-vboxdrv.rules
> -rwxr-xrwx 1 root root 168 Nov 24 12:20 80-scanner.rules
> 
> I had already run adduser for myself to saned and scanner.
> 
> My 80-scanner.rules files is as below:
> # change device EPSON owner group
> ATTRS{manufacturer}=="EPSON", DRIVERS=="usb", SUBSYSTEMS=="usb",
> ATTRS{idVendor}=="04b8", ATTRS{idProduct}=="0x013a", GROUP="scanner"
> 
> Please note my: ATTRS{idProduct}=="0x013a" to reflect the V600.
> 
> These commands below still give the errors as sudo seems to be different
> than non-sudo. I ran them as per instructions on *Test The Command*: from
> your link: https://askubuntu.com/questions/192134/iscan-only-runs-as-root
> 
> use udevadm control –reload to load your rule. use lsusb to find your
> device /dev path to check if your rule is functioning, test with the follow
> command:
> 
> *$ sudo udevadm test $(udevadm info -q path -n /dev/bus/usb/<bus>/<device>)
> 2>&1 | grep -i group --color*
> bash: command substitution: line 7: syntax error near unexpected token `)'
> bash: command substitution: line 7: `udevadm info -q path -n
> /dev/bus/usb/<bus>/<device>)'
> *$ udevadm test $(udevadm info -q path -n /dev/bus/usb/<bus>/<device>) 2>&1
> 
> | grep -i group --color*
> 
> bash: command substitution: line 8: syntax error near unexpected token `)'
> bash: command substitution: line 8: `udevadm info -q path -n
> /dev/bus/usb/<bus>/<device>)'
> 
> I am not sure if I should have substituted */<bus>/<device>* for something
> else?

You can use lsusb to determine <bus> and <device> values:

[yurchor at localhost ~]$ lsusb
Bus 002 Device 004: ID 04b8:0142 Seiko Epson Corp. GT-F730 [GT-S630/Perfection 
V33/V330 Photo]

Here, <bus> is 002 and <device> is 004.

Now (in a line),

sudo udevadm test $(udevadm info -q path -n /dev/bus/usb/002/004) 2>&1 | grep 
-i group --color

should show you the 'scanner' group as owner.

You may try to open /usr/lib/udev/rules.d/60-libsane.rules and search for the 
line 'EPSON Perfection V600 Photo'

For me, it's

TTRS{idVendor}=="04b8", ATTRS{idProduct}=="013a", MODE="0644", GROUP="usb", 
ENV{libsane_matched}="yes"

Notice the owner group (in my case it's "usb". Then try to add you to "usb" 
group as well

sudo adduser [YOU] usb

Hope this helps at last.

Best regards,
Yuri

> ...
> However everything still runs fine as root iscan and gscan2pdf. Again
> sane-find-scanner works as sudo but not as myself.
> 
> Ok then look forward to hearing what else I could try - but as you can see
> I am ok as scans fine and I can get my work done.
> 
> Thank you again for you help!
> 
> Mono
> 
> 
> 
> 
> 
> 
> On Sat, Nov 23, 2019 at 2:01 PM Monosij Dutta-Roy <monosij.forums at gmail.com>
> wrote:
> > Thanks Yuri.
> > 
> > Will do in a bit, maybe tomorrow, and will let you know.
> > 
> > BTW add the file as sudo I assume.
> > 
> > Much thanks for the help!
> > 
> > Mono
> > 
> > On Sat, Nov 23, 2019 at 1:32 PM Yuri Chornoivan <yurchor at ukr.net> wrote:
> >> субота, 23 листопада 2019 р. 20:24:13 EET Monosij Dutta-Roy написано:
> >> > Thanks Yuri.
> >> > 
> >> > Just to confirm - just adding myself to saned and scanner still does
> >> > not
> >> > work.
> >> > 
> >> > To follow the link you sent above - I still need to follow through with
> >> 
> >> the
> >> 
> >> > section
> >> > *Create a rule for the device* and *Test the rule* -
> >> > since *Ubuntu updated the scanner policy* - it seems like?
> >> 
> >> Yes. Just add the mentioned file with the part
> >> 
> >> ATTRS{idProduct}=="0142"
> >> 
> >> replaced with
> >> 
> >> ATTRS{idProduct}=="013a"
> >> 
> >> in its contents and everything should work as soon as you attach the
> >> scanner.
> >> 
> >> Best regards,
> >> Yuri
> >> 
> >> > the Create rule seems complicated - so will go ahead with doing so once
> >> 
> >> I
> >> 
> >> > get your confirmation and let you know how it works.
> >> > 
> >> > Meanwhile - it works great as sudo and sudo gscan2pdf works great as
> >> 
> >> well!
> >> 
> >> > Thank you much.
> >> > 
> >> > Mono
> >> > 
> >> > On Sat, Nov 23, 2019 at 1:04 PM Yuri Chornoivan <yurchor at ukr.net>
> >> 
> >> wrote:
> >> > > субота, 23 листопада 2019 р. 19:55:02 EET ви написали:
> >> > > > Hi Yuri -
> >> > > > 
> >> > > > Thanks for your detailed email! I ran the commands and it seems it
> >> > > 
> >> > > detects
> >> > > 
> >> > > > the scanner when running as sudo.
> >> > > > Thus *sudo sane-find-scanner* works, but *sane-find-scanner* does
> >> 
> >> not.
> >> 
> >> > > > In your interpreter commands noted, some of them did not run even
> >> 
> >> though
> >> 
> >> > > > the previous ones worked.
> >> > > > 
> >> > > > Instead of explaining them, thought I would just send them over.
> >> 
> >> Thus he
> >> 
> >> > > > commands are attached.
> >> > > > 
> >> > > > But essentially it seems to be problem with finding the interpreter
> >> > > > command. I tried with sudo as well:
> >> > > > ...
> >> > > > monosij at blue:~$ interpreter usb 0x04b8 0x013a
> >> > > > /usr/lib/esci/libesci-interpreter-perfection-v600
> >> > > > interpreter: command not found
> >> > > > monosij at blue:~$ sudo interpreter usb 0x04b8 0x013a
> >> > > > /usr/lib/esci/libesci-interpreter-perfection-v600
> >> > > > sudo: interpreter: command not found
> >> > > > monosij at blue:~$ interpreter usb 0x04b8 0x013a
> >> > > > /usr/lib/esci/libesci-interpreter-perfection-v600
> >> > > > interpreter: command not found
> >> > > > monosij at blue:~$ iscan-registry -r interpreter usb 0x04b8 0x013a
> >> > > > /usr/lib/esci/libesci-interpreter-perfection-v600
> >> 
> >> > > > sed: couldn't open temporary file /var/lib/iscan/sedkJn36b:
> >> Permission
> >> 
> >> > > > denied
> >> > > > monosij at blue:~$ iscan
> >> > > > Gtk-Message: 12:28:42.614: Failed to load module
> >> 
> >> "canberra-gtk-module"
> >> 
> >> > > > monosij at blue:~$ sudo iscan   *-- works and opens iscan, detects
> >> 
> >> right
> >> 
> >> > > > scanner and scans fine*
> >> > > > Gtk-Message: 12:49:07.331: Failed to load module
> >> 
> >> "canberra-gtk-module"
> >> 
> >> > > > ...
> >> > > > The list of commands I ran is attached.
> >> > > > 
> >> > > > I am trying to get the scanner to work with gsan2pdf with which
> >> 
> >> worked
> >> 
> >> > > fine
> >> > > 
> >> > > > before - and that still does not detect the scanner.
> >> > > > 
> >> > > > Thank you for your help.
> >> > > > 
> >> > > > Mono
> >> > > 
> >> > > Sorry for misguiding you with faulty line breaks. Anyway the source
> >> 
> >> of the
> >> 
> >> > > problem was other than I think first. It's not the scanner
> >> 
> >> registration,
> >> 
> >> > > but a
> >> > > problem with permissions.
> >> > > 
> >> > > Please follow these instructions (second advice):
> >> > > 
> >> > > https://askubuntu.com/questions/192134/iscan-only-runs-as-root
> >> > > 
> >> > > Hope this helps.
> >> > > 
> >> > > Best regards,
> >> > > Yuri

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