[PC-BSD Testing] pcm-oss.conf

N V vans9 at yandex.ru
Fri Aug 24 05:21:34 PDT 2012


Hi.

I've tested this script and only once. But that worked ok. I'll make more 
testing with few PCs if available.

Regards,
Vans

On 22 августа 2012 20:17:29 Kris Moore wrote:
> On 08/21/2012 10:36, N V wrote:
> > Hi.
> > 
> > Where is //compat/linux/etc/alsa/pcm/pcm-oss.conf file for the linux
> > apps. It has deafult device configured. I've got usb webcam with
> > intergrated microphone (which appears as hda device). If I run skype, it
> > doesn't know anything about it, because there is no entry in
> > /compat/linux/etc/alsa/pcm/pcm-oss.conf but only default device. So I've
> > got sound, but buddy on the other side doesn't hear me. If I make
> > microphone hda device (pcm6 here) default one, I've got no sound in
> > Skype of course, but buddy on the other side hears me. :)
> > 
> > Well, imho, there is some ways to fix this:
> > - pregenerate anough devices in pcm-oss.conf;
> > - generate device list each time I change sound configuration;
> > - generate pcm-oss.conf each time sound device configuration changes
> > (using devd, for example).
> > 
> > The last variant seems to be most user friendly and Plug'n'Play-like, but
> > it introduces some kind of automagical staff which (personally) I don't
> > like. But you may find it ok. Here is rough-and-ready prototype for this
> > variant, it may be called by devfs attach/detach events, it may be like
> > webcamd script: [code]
> > #!/bin/sh
> > 
> > PCM=`egrep -o 'pcm[0-9]+' /dev/sndstat | egrep -o '[0-9]+'`
> > cat > /tmp/pcm-oss.conf <<EOF
> > # pcm-oss plugin configuration
> > 
> > pcm.oss {
> > 
> >         type oss
> >         device /dev/dsp
> >         hint {
> >         
> >                 description "Open Sound System"
> >         
> >         }
> > 
> > }
> > 
> > ctl.oss {
> > 
> >         type oss
> >         device /dev/mixer
> >         hint {
> >         
> >                 description "Open Sound System"
> >         
> >         }
> > 
> > }
> > 
> > EOF
> > 
> > for NUM in $PCM; do
> > 
> >   cat >> /tmp/pcm-oss.conf <<EOF
> > 
> > pcm.oss${NUM} {
> > 
> > 	type oss
> > 	device /dev/dsp${NUM}
> > 	hint {
> > 	
> > 		description "Open Sound System Unit ${NUM}"
> > 	
> > 	}
> > 
> > }
> > 
> > ctl.oss${NUM} {
> > 
> > 	type oss
> > 	device /dev/mixer${NUM}
> > 	hint {
> > 	
> > 		description "Open Sound System Unit ${NUM}"
> > 	
> > 	}
> > 
> > }
> > 
> > EOF
> > 
> > done
> > 
> > mv /tmp/pcm-oss.conf /compat/linux/etc/alsa/pcm/pcm-oss.conf
> > 
> > [/code]
> > 
> > May be, it is not the time to integrate anything for the
> > /compat/linux/etc/alsa/pcm/pcm-oss.conf, may be it's for the next
> > release.
> > 
> > Regards,
> > Vans.
> > _______________________________________________
> > Testing mailing list
> > Testing at lists.pcbsd.org
> > http://lists.pcbsd.org/mailman/listinfo/testing
> 
> This looks helpful to make sure our Linux apps use the proper sound
> configuration. Have you or anybody else tested this script yet on some
> systems to see if it works as expected?


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