[pvrusb2] Can't get Hauppauge HVR-1950 to work

Mike Isely isely at isely.net
Sat Nov 15 19:37:00 CST 2008


On Sat, 15 Nov 2008, Bob James wrote:

> I also have had the "...unable to open /dev/video1" problem using Mythbuntu
> 8.10 x64.
> 
> I'm not sure what causes the problem but was able to get past it to
> configure the capture device by changing the permissions on /dev/video0.  I
> gave full permissions, "sudo chmod 777 /dev/video0" which then allowed me to
> configure and use the device.
> 
> Robert

This is a different sort of issue, and it depends on your distro not the 
driver.  Generally it's not a good idea to allow full run of the driver 
to everyone.  What you did here was effectively an "elephant gun" 
solution.  There are more elegant means.  For example the way this is 
usually done in Debian at least is that there is a group ID defined to 
represent permission to do "video" sorts of things.  Then udev is 
configured to assign that gid to any /dev/videoX device node it creates.  
Now any account which is to be granted permission to use the device is 
simply added to that group.  But that's how it is in Debian; I can't 
vouch for other distributions.

  -Mike


-- 

Mike Isely
isely @ pobox (dot) com
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