From mboxrd@z Thu Jan  1 00:00:00 1970
From: Rob Duncan <rduncan@tesla.com>
Subject: snd_pcm_ioplug_avail_update() confusion
Date: Tue, 17 Oct 2017 23:03:57 -0700
Message-ID: <dw77emh8ux0z76.fsf@tesla.com>
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I'm working on an external IO plugin based on ioplug and I'm confused
about the behavior of snd_pcm_ioplug_avail_update().  Specifically this
call (src/pcm/pcm_ioplug.c:657):

    result = io->data->callback->transfer(io->data, areas, offset, size);

Why isn't there a subsequent call to snd_pcm_mmap_appl_forward() like
there is in ioplug_priv_transfer_areas()?  It seems that without such a
call the captured data will be lost, or have I missed something?

Thanks,

Rob.