From mboxrd@z Thu Jan  1 00:00:00 1970
From: arif setiawan <n.arif.setiawan@gmail.com>
Subject: get two mono channel from stereo line
Date: Mon, 27 Jul 2009 15:54:30 +0700
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Thank you.
It works as we expected, however we found that we can't run two lines
(left-capture - left-playback) and (right-capture - right-playback)
simulatenously.

The error message is :
ALSA lib pcm_dshare.c:706:(snd_pcm_dshare_open) unable to open slave
cannot open output audio device right: Device or resource busy

Is there any workaround for this?