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? -- Timur Tabi Linux kernel developer at Freescale _______________________________________________ Alsa-devel mailing list Alsa-devel@xxxxxxxxxxxxxxxx http://mailman.alsa-project.org/mailman/listinfo/alsa-devel