Changing permissions in /dev

Mark Knoop mark at opus11.net
Wed Jul 18 17:54:51 UTC 2007


Karl Larsen wrote:
> Mark Knoop wrote:
>> Karl Larsen wrote:
>>  
>>> There used to be a way to change permissions on the many /dev/xyz
>>> directories. The /dev/dsp has a fancy permissions that do not work. I
>>> want to change it back to root uucp and that I can handle
>>
>> But what is your problem with /dev/dsp? Are you sure that the 'fancy'
>> permissions are causing it?
>> 
>    Yes. I read several messages on this list that said applications are
> not working if they are sending data to /dev/dsp. I have this problem
> too. If you look at the permission with ls -l it has my login then root
> and then that stupid sticky bit thing. When I call /dev/dsp with a GUI
> device the permissions are changed it seems.

I think your problem is much more likely to be that another application
is already using /dev/dsp

What is the output of '/usr/sbin/lsof /dev/dsp' when you have this
problem? A better solution is to configure applications to use ALSA so
that you can have multiple sound sources playing simultaneously.

-- 
Mark Knoop




More information about the users mailing list