[opensuse-arm] Add user to 'video' group
Hi, what is the right way to add users to video group automatically? For example, we would need it to run some video tests using /dev/dri/* files.
ll -h /dev/dri/ total 0 crw-rw----+ 1 root video 226, 0 avril 22 16:38 card0 crw-rw---- 1 root video 226, 64 avril 22 16:38 controlD64
Guillaume -- To unsubscribe, e-mail: opensuse-arm+unsubscribe@opensuse.org To contact the owner, e-mail: opensuse-arm+owner@opensuse.org
2013/4/22 Guillaume Gardet <guillaume.gardet@free.fr>: Hi Guillaume,
what is the right way to add users to video group automatically?
The right way is to not do that at all :)
For example, we would need it to run some video tests using /dev/dri/* files.
ll -h /dev/dri/ total 0 crw-rw----+ 1 root video 226, 0 avril 22 16:38 card0 crw-rw---- 1 root video 226, 64 avril 22 16:38 controlD64
I think the way it should work is that logind should determine that you're a locally logged in user and do a setfacl on your device to grant you access in *addition* to those who are in group video. in this case it seems there was no facl set, did logind think that you're locally logged in? Greetings Dirk -- To unsubscribe, e-mail: opensuse-arm+unsubscribe@opensuse.org To contact the owner, e-mail: opensuse-arm+owner@opensuse.org
Le 23/04/2013 00:34, Dirk Müller a écrit :
2013/4/22 Guillaume Gardet <guillaume.gardet@free.fr>:
Hi Guillaume,
what is the right way to add users to video group automatically? The right way is to not do that at all :)
Really? On my desktop computer my username is in video group.
For example, we would need it to run some video tests using /dev/dri/* files.
ll -h /dev/dri/ total 0 crw-rw----+ 1 root video 226, 0 avril 22 16:38 card0 crw-rw---- 1 root video 226, 64 avril 22 16:38 controlD64 I think the way it should work is that logind should determine that you're a locally logged in user and do a setfacl on your device to grant you access in *addition* to those who are in group video.
in this case it seems there was no facl set, did logind think that you're locally logged in?
How to check? Guillaume
Greetings Dirk
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On 23/04/13 15:54, Guillaume Gardet wrote:
Le 23/04/2013 00:34, Dirk Müller a écrit :
2013/4/22 Guillaume Gardet <guillaume.gardet@free.fr>:
Hi Guillaume,
what is the right way to add users to video group automatically? The right way is to not do that at all :)
Really? On my desktop computer my username is in video group.
For example, we would need it to run some video tests using /dev/dri/* files.
ll -h /dev/dri/ total 0 crw-rw----+ 1 root video 226, 0 avril 22 16:38 card0 crw-rw---- 1 root video 226, 64 avril 22 16:38 controlD64 I think the way it should work is that logind should determine that you're a locally logged in user and do a setfacl on your device to grant you access in *addition* to those who are in group video.
in this case it seems there was no facl set, did logind think that you're locally logged in?
How to check?
Guillaume
Greetings Dirk
# grep video /etc/group video:x:33:lancelot,andrea,gdm You can edit /etc/group and add users like I did here for users lancelot,andrea. Regards Sid. -- Sid Boyce ... Hamradio License G3VBV, Licensed Private Pilot Emeritus IBM/Amdahl Mainframes and Sun/Fujitsu Servers Tech Support Senior Staff Specialist, Cricket Coach Microsoft Windows Free Zone - Linux used for all Computing Tasks -- To unsubscribe, e-mail: opensuse-arm+unsubscribe@opensuse.org To contact the owner, e-mail: opensuse-arm+owner@opensuse.org
Hi Guillaume,
Really? On my desktop computer my username is in video group.
Probably not from out of the box though, that would be news.
crw-rw----+ 1 root video 226, 0 avril 22 16:38 card0 crw-rw---- 1 root video 226, 64 avril 22 16:38 controlD64
btw, you do have an ACL set, sorry that I missed that while reading the mail on the phone, see the '+' in this line: crw-rw----+ 1 root video 226, 0 avril 22 16:38 card0 so you can do something like: getfacl /dev/dri/card0 which should print then: # file: dev/dri/card0 # owner: root # group: video user::rw- user:dmueller:rw- I think your problem is that controlD64 does not have the ACL set as well. correct? Greetings, Dirk -- To unsubscribe, e-mail: opensuse-arm+unsubscribe@opensuse.org To contact the owner, e-mail: opensuse-arm+owner@opensuse.org
Le 23/04/2013 18:53, Dirk Müller a écrit :
Hi Guillaume,
Really? On my desktop computer my username is in video group. Probably not from out of the box though, that would be news.
It is openSUSE 12.2 and I do not remember if I added my username to videogroup.
crw-rw----+ 1 root video 226, 0 avril 22 16:38 card0 crw-rw---- 1 root video 226, 64 avril 22 16:38 controlD64 btw, you do have an ACL set, sorry that I missed that while reading the mail on the phone, see the '+' in this line:
crw-rw----+ 1 root video 226, 0 avril 22 16:38 card0
so you can do something like:
getfacl /dev/dri/card0
which should print then:
# file: dev/dri/card0 # owner: root # group: video user::rw- user:dmueller:rw-
I think your problem is that controlD64 does not have the ACL set as well. correct?
Here are the getfacl results:
getfacl dev/mali0 # file: dev/mali0 # owner: root # group: video user::rw- group::rw- other::---
getfacl dev/dri/card0 # file: dev/dri/card0 # owner: root # group: video user::rw- user:guillaume:rw- group::rw- mask::rw- other::---
getfacl dev/dri/controlD64 # file: dev/dri/controlD64 # owner: root # group: video user::rw- group::rw- other::---
So, /dev/mali0 and /dev/dri/controlD64 have not the ACL set. I guess an udev rule should do the trick. Guillaume
Greetings, Dirk
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participants (3)
-
Dirk Müller -
Guillaume Gardet -
Sid Boyce