[Alsa-user] /dev/snd/mixer missing!

[gisac59 <gi...@ya...>]

Good morning to all!
It's first time i write this ml. From any day, I have a problem.
Trying to listen an mp3 with xmms (I use a fedora core 6), I received a message
of error (please check that: your soundcard is configured properly You have the
correct output plugin selected No other program is blocking the soundcard).
This happens if I select alsa like output plugin (with oss all works right!)

Trying to launch alsamixer, the output is:
"ALSA lib control.c:910:(snd_ctl_open_noupdate) Invalid CTL default
alsamixer: function snd_ctl_open failed for default: No such file or directory"

These are the specifics of my system:

/proc/asound/cards
 0 [V8237          ]: VIA8237 - VIA 8237
                      VIA 8237 with ALC655 at 0xb800, irq 22

/proc/asound/modules
 0 snd_via82xx

/proc/asound/pcm
00-01: VIA 8237 : VIA 8237 : playback 1 : capture 1
00-00: VIA 8237 : VIA 8237 : playback 4 : capture 1

/proc/asound/timers
G0: system timer : 1000.000us (10000000 ticks)
P0-0-0: PCM playback 0-0-0 : SLAVE
P0-0-1: PCM capture 0-0-1 : SLAVE
P0-0-2: PCM playback 0-0-2 : SLAVE
P0-0-4: PCM playback 0-0-4 : SLAVE
P0-0-6: PCM playback 0-0-6 : SLAVE
P0-1-0: PCM playback 0-1-0 : SLAVE
P0-1-1: PCM capture 0-1-1 : SLAVE

/proc/asound/version
Advanced Linux Sound Architecture Driver Version 1.0.14rc3.
Compiled on Mar 24 2007 for kernel 2.6.20-1.2933.fc6 (SMP).

I think interesting that in /dev/snd are only:
ls -al /dev/snd
totale 0
drwxr-xr-x  2 root  root     180 25 mar 21:00 .
drwxr-xr-x 12 root  root    4600 25 mar 21:00 ..
crw-------  1 gisac root 116,  0 25 mar 21:00 controlC0
crw-------  1 gisac root 116, 24 25 mar 21:00 pcmC0D0c
crw-------  1 gisac root 116, 16 25 mar 21:00 pcmC0D0p
crw-------  1 gisac root 116, 25 25 mar 21:00 pcmC0D1c
crw-------  1 gisac root 116, 17 25 mar 21:00 pcmC0D1p
crw-------  1 gisac root 116,  1 25 mar 21:00 seq
crw-------  1 gisac root 116, 33 25 mar 21:00 timer

This is the content of ~/.asoundrc:
pcm.via82xx {
           type hw
           card 0
        }

        ctl.via82xx {
           type hw
           card 0
        }
midi_driver	alsa
oss_midi_device	/dev/midi
midi_channel	0
audio_driver	alsa
oss_audio_device	/dev/dsp
alsa_audio_device	default
sample_rate	48000
polyphony	16

Anyone can help me?
Thanks