[PlanetCCRMA] understanding modprobe.conf

[Len]

I've been trying to get my modprobe.conf configured correctly on  2.6.24.3-1.rt1.2.fc8.ccrmart  (desktop), using Echo Layla24 PCI sound card.  It's working, but still somewhat unstable (jack sometimes disconnects with 'zombified' client message).

Based on what I found in the planetccrma mailing list archives ('lost alsa config for modprobe.conf'), and what's on this page (http://www.alsa-project.org/main/index.php/Matrix:Module-layla24), my modprobe.conf looks like this:    
    
# ALSA portion 
       alias char-major-116 snd 
       alias snd-card-0 snd-layla24 
options snd-layla24 index=0

     install snd-layla24 /sbin/modprobe --ignore-install snd-layla24  && \     
/usr/sbin/alsactl restore >/dev/null 2>&1 || :    
remove snd-layla24  { /usr/sbin/alsactl store >/dev/null 2>&1 || : ; }; \    
/sbin/modprobe -r --ignore-remove snd-layla24    
    
       # OSS/Free portion 
       alias char-major-14 soundcore 
       alias sound-slot-0 snd-card-0 
        
       # card #1 
       alias sound-service-0-0 snd-mixer-oss 
       alias sound-service-0-1 snd-seq-oss 
       alias sound-service-0-3 snd-pcm-oss 
       alias sound-service-0-8 snd-seq-oss 
       alias sound-service-0-12 snd-pcm-oss 
   
  
Are the 'install'/'remove' lines and the OSS/Free parts needed?  

Also, since the Layla unit has MIDI ports, do I need to add more lines to modprobe.conf that are specific to the MIDI interface, on a different slot?  It seems to be picking up the MIDI automatically, but I'm wondering if things might be even more stable if I specify explicitly how to do it.  The output of 'cat /proc/asound/cards' looks like this:

 0 [Layla24        ]: Echo_Layla24 - Layla24
                      Layla24 rev.0 (DSP56361) at 0xfdd00000 irq 18
 1 [UART           ]: MPU-401 UART - MPU-401 UART
                      MPU-401 UART at 0x330, irq 10


When I use MIDI with soft synths (qsynth, hexter, etc), I see messages like these in /var/log/messages:

kernel: ALSA sound/pci/echoaudio/echoaudio.c:1839: rawmidi_iread=1
kernel:last message repeated 560 times

Does that look normal?

Thanks in advance.

Len





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