From mboxrd@z Thu Jan  1 00:00:00 1970
From: Scott Jiang <scott.jiang.linux@gmail.com>
Subject: Have multiple opens removed on one device?
Date: Mon, 22 Aug 2011 18:13:03 +0800
Message-ID: <CAHG8p1BRN365PTyDxh-6UFWKtf_M-WcVZDGmuXB0W+CjTgPNGQ@mail.gmail.com>
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To: Mark Brown <broonie@opensource.wolfsonmicro.com>, Takashi Iwai <tiwai@suse.de>
Cc: alsa-devel@alsa-project.org
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Hi Mark and Takashi,

In kernel 2.6.34 I can use aplay to play audio at the same time, alsa
will mix the audio. Now the second open will return device busy.
So it seems this feature has been removed. What's the proper approach
for this operation at present?

Thanks.

Scott