[alsa-devel] [PATCH] ALSA: snd-aloop: make preallocated buffer size configurable

[Pierre-Louis Bossart]

> Well, if it's only about snd-aloop, another option would be to use
> vmalloc'ed buffer for aloop.  Since it's no hardware buffer, it's
> more system-friendly, and you don't need a pre-allocation.
> Again, an untested patch is below.

I wasn't sure why physically-contiguous memory would be required, just
reduced it, but it makes sense to remove it altogether.

I used a double loopback, one in alsa and one in pulseaudio. Works fine.
$ pactl load-module module-loopback source=alsa_input.1.analog-stereo
sink=alsa_output.pci-0000_00_1b.0.analog-stereo
$ aplay -Dhw:1,1 viol-1mn.wav 


For some reason I couldn't apply the patch as is, here's what I used
Thanks!
-Pierre
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