/dev/dsp and the audio group

2000-11-18 Thread Alessandro Amici
hi,

I installed potato and now upgraded to 2.2r1 and have a problem with
sound.
permissions of the /dev/dsp* devices are crw-rw and ownership is
root.audio.
this seem to be sane if as a counterpart audio applications were owned
by root.audio and set sgid, but this is not the case!
I checked mpg123 and xmms, they are all not able to write to /dev/dsp*
devices.

changing owner and permissions everything works.

did I mess up something in the installation?
is there a standard way to make all audio apps working properly?

thanks,
alessandro



Re: /dev/dsp and the audio group

2000-11-18 Thread Ethan Benson
On Sat, Nov 18, 2000 at 11:15:19AM +0100, Alessandro Amici wrote:
 hi,
 
 I installed potato and now upgraded to 2.2r1 and have a problem with
 sound.
 permissions of the /dev/dsp* devices are crw-rw and ownership is
 root.audio.
 this seem to be sane if as a counterpart audio applications were owned
 by root.audio and set sgid, but this is not the case!
 I checked mpg123 and xmms, they are all not able to write to /dev/dsp*
 devices.

no, the idea behind root.audio 0660 permissions is to restrict access
to the sound hardware only to trusted users, otherwise any bozo with a
shell account can play any sound they want which could be potentially
annoying.  

the proper solution is to add yourself to group audio:

adduser me audio

 changing owner and permissions everything works.

don't do that, add yourself to group audio instead.

 did I mess up something in the installation?

depends what permissions you used.  

 is there a standard way to make all audio apps working properly?

yes, add yourself to group audio

-- 
Ethan Benson
http://www.alaska.net/~erbenson/


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