[alsa-devel] mapping externally allocated Scatter Gather DMA buffers

Jaroslav Kysela perex at perex.cz
Tue Nov 9 13:01:52 CET 2010

On Tue, 9 Nov 2010, Manu Abraham wrote:

> testbox ~ # arecord -Dhw:2,0
> Recording WAVE 'stdin' : Unsigned 8 bit, Rate 8000 Hz, Mono

> Any idea, why saa7231_hw_params is not getting invoked ?

Your hw probably does not support directly 8-bit sample at 8000Hz, one 
channel. Use 'plughw:2,0' device instead 'hw:2,0' to let alsa-lib do all 
stream format conversions.


Jaroslav Kysela <perex at perex.cz>
Linux Kernel Sound Maintainer
ALSA Project, Red Hat, Inc.

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