From mboxrd@z Thu Jan  1 00:00:00 1970
From: hong zhang <henryzhang62@yahoo.com>
Subject: asoc: no valid backend routes for PCM: SDP4430 Media
Date: Mon, 6 Jun 2011 17:13:07 -0700 (PDT)
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List,

After capturing data from DMIC on OMAP4 blaze board with kernel 2.6.38 and save wav data to 38.wav.

But aplay complains "no valid backend routes". See following,

$aplay -f dat 38.wav 
[  157.167724] asoc: no valid backend routes for PCM: SDP4430 Media
aplay: main:654: audio open error: Invalid argument

$ uname -a
Linux ubuntu 2.6.38.4+ #58 SMP PREEMPT Fri Jun 3 09:44:19 PDT 2011 armv7l GNU/Linux

Does ALSA add new functionality of backend?


Thanks.

---henry