[alsa-devel] Using speaker-test for sound cards which dont support mmap

Jaroslav Kysela perex at suse.cz
Thu Jul 12 09:13:41 CEST 2007

On Thu, 12 Jul 2007, Clemens Ladisch wrote:

> >From the point of view of userspace applications, all sound cards
> support mmap.

It's not really true. Some drivers might not support mmap, but the mmap 
access can be partly "emulated" in alsa-lib using standard read/write 


Jaroslav Kysela <perex at suse.cz>
Linux Kernel Sound Maintainer
ALSA Project, SUSE Labs

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