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

[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...