[mythtv-users] /dev/video0 - Device or ressource busy

Matthias Meyer Matthias.Meyer at gmx.li
Sun May 23 08:21:52 EDT 2004


Am Sonntag, 23. Mai 2004 13:21 schrieb BP:
> Matthias Meyer wrote:
> > Maybee an additional hint?
> > vdr:~# ls -al /dev/video*
> > lrwxrwxrwx    1 root     root            6 2004-05-09 12:32 /dev/video
> > -> video0 crw-rw----    1 root     video     81,   0 2004-05-09 12:32
> > /dev/video0 crw-rw----    1 root     video     81,   1 2004-05-09 12:32
> > /dev/video1
>
> Is your mythtv user part of the video group?  Your permissions show only
> root and members of the video group having read and write access to
> /dev/video0 and /dev/video1.  All other users have no access.  Either
> change the permissions or add the mythtv user to the video group.
>
> For comparison, here are my permissions:
>
> qucai dev # ls -la /dev/video*
> lr-xr-xr-x    1 root     root           10 May 22 01:56 /dev/video0 ->
> v4l/video0
> lr-xr-xr-x    1 root     root           11 May 22 01:56 /dev/video32 ->
> v4l/video32
> qucai dev # ls -la /dev/v4l/*
> crw-------    1 mythtv   video     81, 224 Dec 31  1969 /dev/v4l/vbi0
> crw-------    1 mythtv   video     81,   0 Dec 31  1969 /dev/v4l/video0
> crw-------    1 mythtv   video     81,  32 Dec 31  1969 /dev/v4l/video32
>
> In my case, despite the rights on the /dev/video0 link, only the mythtv
> user has access.  That's fine for Myth, but not so great if I want to
> use the capture card elsewhere...

vdr:~# grep video /etc/group
video:x:44:mythtv

So far as I can see, mythtv is in the group video.
Nevertheless, thanks for your hint.
-- 
no panic



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