Udev config files

[Erik Søe Sørensen]

I had /dev/dsp permission problems stemming from udev configuration 
problems.

In /etc/udev/udev.conf the configuration files are set to:
   udev_rules="/etc/udev/rules.d/"
   udev_permissions="/etc/udev/permissions.d/"
but the rules and permissions are installed as
   /etc/udev/udev.{rules,permissions}

udev does not complain about this (it even silently ignores the 
permissions if the perm config is corrected but the rules config is 
not). (I've notified the udev people about this.)

The mismatching config files seems to be a udev Makefile problem... a 
patch could be created to fix this.

On the Lunar side, the permissions files could be a bit better:
the line
   dsp1:::0666
should be
   dsp*::audio:0660
(I suppose the udev 'generic distribution' configuration doesn't assume 
that an audio user group exists.)

/Erik  [preparing for an exam, thus haven't got time right now for
         digging makefiles]