How to set group of video and audio devices automatically

[Derek Tattersall]

Mikkel L. Ellertson wrote:
> Derek Tattersall wrote:
>   
>> I found that adding this to
>> /etc/security/console.perms.d/50-default.perms works:
>>
>> <video>=/dev/video*
>> <audio>=/dev/snd/* /dev/mixer* /dev/dsp*
>>
>> <console>  0660 <video>      0660 root.pulse
>> <console>  0660 <audio>      0660 root.pulse
>>
>> Then add any users who might want to use those devices to the pulse group
>>
>> Unfortunately  this only applies to devices that are plugged in on boot
>> up. Are devices that are plugged in after boot up handled by udev?
>>
>>     
> Have you tried it? I have not looked lately, but I know that udev
> used to call console.perms when a device was hotplugged, so it could
> set permissions if necessary.
>
> Mikkel
>   
Yes I did try it. When the device was plugged into the USB port on boot 
up, the permissions were set as I wanted them to be.

When the device (A USB audio card) was plugged in after boot up, the 
permissions were not set properly.

I may have to mess with the udev rules further. Maybe if I write some 
kind of post-install script that manually sets the permissions.

Derek Tattersall