[alsa-devel] snd-aloop not working in linux-3.12.10

[Takashi Iwai]

At Fri, 6 Mar 2015 10:35:52 +0000,
Srinivasan S wrote:
> 
> Once again many Thanks for the quick responses,
> 
> Could you please try  & let me know whether does it works viceversa ie., arecord on loopback card first & then aplay on the loopback card as shown below
> 
> $ arecord -D plughw:3,1,0 -f dat -c 1 a.wav
> Recording WAVE 'a.wav' : Signed 16 bit Little Endian, Rate 48000 Hz, Mono
> 
> $ aplay -D plughw:3,0,0 a.wav
> Playing WAVE '/usr/share/sounds/alsa/Noise.wav' : Signed 16 bit Little
> Endian, Rate 48000 Hz, Mono

FYI, the above works for me, but I tested with the much later kernel,
and on x86 box.  You should try the very same kernel on x86 box, too.
If it works, the problem must be architecture-specific, e.g. the
memory cache issue.


Takashi