From mboxrd@z Thu Jan  1 00:00:00 1970
From: Tobias Schneider <tobsnyder@gmx.de>
Subject: Support for floating point controls?
Date: Mon, 01 Feb 2010 17:13:24 +0100
Message-ID: <4B66FDA4.9070709@gmx.de>
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To: alsa-devel@alsa-project.org, Eliot Blennerhassett <eblennerhassett@audioscience.com>
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I was searching for floating point controls and found your post. I would 
also appreciate such a define, but I also found an answer that might 
still be "up to date" 
http://thread.gmane.org/gmane.linux.alsa.devel/1498/focus=1507