[alsa-devel] Flash Plugin & IO Plug: Async interface not implemented?

[Alexander Indenbaum]

Hello,

I'm trying to integrate Firefox Flash plugin with ASLA IO plug driver
for proprietary hardware.

I've found out that Flash Plugin ASLA client side (sources could be
found at http://labs.adobe.com/wiki/index.php/Flash_Player:Additional_Interface_Support_for_Linux)
is incompatible with IO Plug. The reason is that during initialization
Flash Plugin calls snd_async_add_pcm_handler() which always return
-ENOSYS out of snd_pcm_ioplug_async(). This error causes Flash Plugin
ALSA client code to fail.

Is there a good reason why snd_pcm_ioplug_async() unconditionally
return  -ENOSYS?
Is it possible to implement  IO Plug async interface?

Thank you for your help,
Alexander Indenbaum