[alsa-devel] SNDRV_PCM_INFO_MMAP - what do I need for it?
timur at freescale.com
Wed Jan 16 20:40:07 CET 2008
Timur Tabi wrote:
> How can I know whether this function works? Can I just add those two flags to
> my .info line, and then .... ? Is there an ALSA mmap test utility?
Ok, I think aplay can do this.
I ran this command:
aplay -Dhw:0,0 -f S16_BE -M -r 48000 -c 2 15.raw
and I got this error:
aplay: set_params:852: Access type not available
so I modified my .info line and added those two macros. When I run "aplay -M",
it plays the file fine.
Does this mean that my one-line change has added mmap support to my driver, and
dmix should now work?
Linux kernel developer at Freescale
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