7:09 p.m.
I managed to get a usb scanner working for root, but I don't want to
always have to go into /dev/bus/usb/002/ and change the permissions so a
regular user can use it. Is there an elegant way to allow a regular
user to run xsane for a USB scanner? That works even when it is not
present at boot but is hot plugged later?
I didn't find anything in a web search, though there were hints that
this could be done through udev rules in /etc/udev/rules.d somehow.
There doesn't appear to be a scanner group or a usb group to add my user
to, and I think that creating an fstab entry with user permissions like
cd and dvd for usb is obsolete.
So, what is the solution?
10:12 p.m.
stan wrote:
Thank you for the possibilities, but it looks like the hal solution will
do what I want. And is the *official* way. :-)
I am glad you found the HAL rules you needed. It is indeed the
correct way. I have to learn to write HAL rules one of these days.
Mikkel
--
Do not meddle in the affairs of dragons,
for thou art crunchy and taste good with Ketchup!
9:53 p.m.
On Sun, 02 Aug 2009 21:30:49 -0500
"Mikkel L. Ellertson" <mikkel(a)infinity-ltd.com> wrote:
If they use the same protocal, then it is mainly a matter of adding
the usb ID.
Do you want a quick and dirty fix, or a somewhat better, but more
complicated fix? Simple fixes:
mount -o remount,devmode=664,gid=<group_number> /proc/bus/usb
Replace <group_number> with the number of the group you want to give
access. Maybe create a scanner group.
mount -o remount,devmode=666 /proc/bus/usb
This gives access to everybody.
The problem with both of these is that it gives access to all the
USB devices.
A more complicated solution involves a udev rule tailored to your
scanner that sets the ownership/permissions for the device. I have a
setup like that for allowing specific devices to be used in
VirtualBox virtual machines if you want it.
Thank you for the possibilities, but it looks like the hal solution will
do what I want. And is the *official* way. :-)
9:44 p.m.
New subject: Solved: Re: Automatically grant user permission to use USB scanner in F11 x86_64
On Sun, 2 Aug 2009 17:09:47 -0700
stan <gryt2(a)q.com> wrote:
Is there an elegant way to allow a
regular user to run xsane for a USB scanner? That works even when
it is not present at boot but is hot plugged later?
The solution is hal. It seems that libsane has been removed from
/etc/udev/rules.d and everything is in
/usr/share/hal/fdi/information/20thirdparty/19-libsane.fdi
When I added a rule for the vendor with the id of the device to that
file, I was then able to access it as a normal user.
There were problems with using the device through xsane, but it could
scan. I think this is because the device is not officially supported
and I'm only piggybacking on another version.
It worked after unplugging and plugging as well.
8:17 p.m.
New subject: Automatically grant user permission to use USB scanner in F11 x86_64
On Sun, 2 Aug 2009 21:15:42 -0300
Itamar Reis Peixoto <itamar(a)ispbrasil.com.br> wrote:
the solution is udev, you need to google about it.
I hadn't found anything in my searches up to the point of writing the
email so I thought I would ask. A grep of the rules already there finds
many rules for usb devices, but none of them are obviously scanners, and
the vendor of the scanner isn't listed even though they do have a sane
supported scanner.
I'll keep looking. :-)
8:14 p.m.
On Sun, 02 Aug 2009 19:43:51 -0500
"Mikkel L. Ellertson" <mikkel(a)infinity-ltd.com> wrote:
There used to be a rule set for scaners in /etc/udev/rules.d that
created a scanner symlink, and set permissions. But can't seem to
find it any more. This makes me suspect that HAL or ConsoleKit has
taken over. It is possible that your scanner is not being recognized
by the software... If so, this would be a good time to file a bug
report so they can add it to the list.
Yeah, it is a scanner that hasn't been supported in sane before this
(Visioneer OneTouch 7400, the Visioneer OneTouch 7300 is supported), so
there will be lots of things to do. I'll be reporting to sane, so maybe
it will get fixed via upstream.
In the mean time, you can write a udev rule to set permissions on
the device. Does "ls /dev/scanner*" show a symlink for the scanner?
In my searching so far, this seems to be obsolete because it used the
scanner module in the kernel. The modern solution is to use libusb for
usb scanners.
7:43 p.m.
stan wrote:
I managed to get a usb scanner working for root, but I don't want
to
always have to go into /dev/bus/usb/002/ and change the permissions so a
regular user can use it. Is there an elegant way to allow a regular
user to run xsane for a USB scanner? That works even when it is not
present at boot but is hot plugged later?
I didn't find anything in a web search, though there were hints that
this could be done through udev rules in /etc/udev/rules.d somehow.
There doesn't appear to be a scanner group or a usb group to add my user
to, and I think that creating an fstab entry with user permissions like
cd and dvd for usb is obsolete.
So, what is the solution?
There used to be a rule set for scaners in /etc/udev/rules.d that
created a scanner symlink, and set permissions. But can't seem to
find it any more. This makes me suspect that HAL or ConsoleKit has
taken over. It is possible that your scanner is not being recognized
by the software... If so, this would be a good time to file a bug
report so they can add it to the list.
In the mean time, you can write a udev rule to set permissions on
the device. Does "ls /dev/scanner*" show a symlink for the scanner?
Mikkel
--
Do not meddle in the affairs of dragons,
for thou art crunchy and taste good with Ketchup!
7:15 p.m.
New subject: Automatically grant user permission to use USB scanner in F11 x86_64
the solution is udev, you need to google about it.
On Sun, Aug 2, 2009 at 9:09 PM, stan<gryt2(a)q.com> wrote:
I managed to get a usb scanner working for root, but I don't want
to
always have to go into /dev/bus/usb/002/ and change the permissions so a
regular user can use it. Is there an elegant way to allow a regular
user to run xsane for a USB scanner? That works even when it is not
present at boot but is hot plugged later?
I didn't find anything in a web search, though there were hints that
this could be done through udev rules in /etc/udev/rules.d somehow.
There doesn't appear to be a scanner group or a usb group to add my user
to, and I think that creating an fstab entry with user permissions like
cd and dvd for usb is obsolete.
So, what is the solution?
--
fedora-list mailing list
fedora-list(a)redhat.com
To unsubscribe: https://www.redhat.com/mailman/listinfo/fedora-list
Guidelines: http://fedoraproject.org/wiki/Communicate/MailingListGuidelines
--
------------
Itamar Reis Peixoto
e-mail/msn: itamar(a)ispbrasil.com.br
sip: itamar(a)ispbrasil.com.br
skype: itamarjp
icq: 81053601
+55 11 4063 5033
+55 34 3221 8599
9:30 p.m.
stan wrote:
On Sun, 02 Aug 2009 19:43:51 -0500
"Mikkel L. Ellertson" <mikkel(a)infinity-ltd.com> wrote:
> There used to be a rule set for scaners in /etc/udev/rules.d that
> created a scanner symlink, and set permissions. But can't seem to
> find it any more. This makes me suspect that HAL or ConsoleKit has
> taken over. It is possible that your scanner is not being recognized
> by the software... If so, this would be a good time to file a bug
> report so they can add it to the list.
Yeah, it is a scanner that hasn't been supported in sane before this
(Visioneer OneTouch 7400, the Visioneer OneTouch 7300 is supported), so
there will be lots of things to do. I'll be reporting to sane, so maybe
it will get fixed via upstream.
If they use the same protocal, then it is mainly a matter of adding
the usb ID.
> In the mean time, you can write a udev rule to set permissions
on
> the device. Does "ls /dev/scanner*" show a symlink for the scanner?
In my searching so far, this seems to be obsolete because it used the
scanner module in the kernel. The modern solution is to use libusb for
usb scanners.
Do you want a quick and dirty fix, or a somewhat better, but more
complicated fix? Simple fixes:
mount -o remount,devmode=664,gid=<group_number> /proc/bus/usb
Replace <group_number> with the number of the group you want to give
access. Maybe create a scanner group.
mount -o remount,devmode=666 /proc/bus/usb
This gives access to everybody.
The problem with both of these is that it gives access to all the
USB devices.
A more complicated solution involves a udev rule tailored to your
scanner that sets the ownership/permissions for the device. I have a
setup like that for allowing specific devices to be used in
VirtualBox virtual machines if you want it.
Mikkel
--
Do not meddle in the affairs of dragons,
for thou art crunchy and taste good with Ketchup!
5385
days inactive
5385
days old
8 comments
3 participants
participants (3)
-
itamar -
Mikkel -
stan