From: Takashi Iwai <tiwai@suse.de>
Date: Thu, 28 Apr 2011 07:58:43 +0000 (+0200)
Subject: ALSA: usb-audio - Don't expose broken dB ranges
X-Git-Tag: v3.0-rc1~347^2~2^2~30
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=59bb7f0eebe69aa32a5c7917a23a7da1c5667d73;p=pandora-kernel.git

ALSA: usb-audio - Don't expose broken dB ranges

Some crappy USB-audio devices give broken dB ranges, e.g. both min and max
are 0dB.  This confuses the volume control that prefers dB expression such
as alsactl or PulseAudio.  In such a case, it's much better not to expose
the broken dB information.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
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