[pulseaudio-tickets] [Bug 84585] Issue of CPU usage with HiFiBerry driver snd_soc_hifiberry_amp with Debian Wheezy kernel 3.12.28

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=84585

--- Comment #19 from Raymond <superquad.vortex2 at gmail.com> ---
static const struct snd_pcm_hardware bcm2708_pcm_hardware = {
    .info            = SNDRV_PCM_INFO_INTERLEAVED |
                      SNDRV_PCM_INFO_JOINT_DUPLEX,


http://mailman.alsa-project.org/pipermail/alsa-devel/2007-December/004801.html

seem driver has specific playback /capture behaviour when using
SNDRV_PCM_INFO_JOINT_DUPLEX

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