[pulseaudio-discuss] Configuring PulseAudio to use ALSA PCM plugin

[Ng Oon-Ee]

On Wed, 2011-03-02 at 18:16 -0800, Ben C wrote:
> Hello, I'm trying to configure PulseAudio to use an ALSA PCM plugin in the audio 
> chain.
> 
> PulseAudio as been configured with:
> load-module module-alsa-sink device=my_sink
> 
> And ALSA has been configured with:
> 
> pcm.my_sink {
>     type my_pcm_plugin
>     slave.pcm "hw:0,0"
> }
> 
> However, my_sink seems to get hogged, and be considered "busy". I had to 
> configure dmix in order for this setup to work. Is that normal? Am I configuring 
> something incorrectly? I would assume that to PulseAudio, these ALSA output 
> devices are the same, whether it's a physical device or a virtual one. But when 
> using the default configuration (and my_pcm_plugin is not in the chain), dmix 
> isn't necessary.
> 
> Thanks for your help.

Do you have another line in your default.pa loading
module-alsa-card/sink before the line above? module-udev-detect or
similar?