[alsa-devel] Direct use of the DMA buffer?

Pavel Hofman pavel.hofman at ivitera.com
Mon Feb 20 00:11:43 CET 2012


Please excuse my ignorance, but is it possible for an application to
directly use/output to the DMA buffer allocated by the kernel in
hw_params? Something like using the actual DMA buffer in the
snd_pcm_writei function, without copying the data in alsa-lib/driver PCM
midle layer (?), just managing the pointers.

Only a theoretical question though, no plans on my side :)

Thanks a lot for even a short No :-)

Best regards,


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