>> They are different: >> >> [aplay <no options> track.wav] >> Mar 19 19:21:23 localhost kernel: pcm_hw_params (bufsize=88200 periods=3 >> persize=22052) >> >> bufsize==88200 != 3*22052 == 66156 > > Note that there is no guarantee that the periods == integer value. > If your hardware doesn't allow to set period_size and buffer_size > independently (if buffer_size must be multiple of period_size) then put > this code to the open callback: > > if ((err = snd_pcm_hw_constraint_integer(runtime, > SNDRV_PCM_HW_PARAM_PERIODS)) < 0) > return err; > > See alsa-kernel/pci/via82xx.c for an example. > > In other cases, runtime->buffer_size MUST BE USED.
Ok, but how do I build the sg list when bufsize!=sz*periods ? Take the example above: have I to build 4 periods and let the last one smaller than 22052 ? Bye. ------------------------------------------------------- This SF.net email is sponsored by: Tablet PC. Does your code think in ink? You could win a Tablet PC. Get a free Tablet PC hat just for playing. What are you waiting for? http://ads.sourceforge.net/cgi-bin/redirect.pl?micr5043en _______________________________________________ Alsa-devel mailing list [EMAIL PROTECTED] https://lists.sourceforge.net/lists/listinfo/alsa-devel
