[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 #26 from Raymond <superquad.vortex2 at gmail.com> ---
(alsa-lib)pcm_hw.c: SNDRV_PCM_IOCTL_HW_PARAMS failed (-22)



do the driver has enough constraints to finalize the parameters when pulseaudio
only set maximum buffer size? 


do this mean it support Non integer (e.g.3.7 ) periods per buffer since there
is no constraint 

snd_pcm_hw_constraint_integer(runtime, SNDRV_PCM_HW_PARAM_PERIODS);

http://cgit.freedesktop.org/pulseaudio/pulseaudio/commit/src/modules/alsa/alsa-util.c?id=3c73e2130fd65e147c487b0b84c1a8b6a8afa04c

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