Hello, I have the following dilema. The Aureal Vortex DMA engine supports upto 4 hardware pages, but they have to be frame aligned. The current driver also needs them to be of the same size. To archive this, i added the following code in the pcm "open" function.
/* Force equal size periods */ if ((err = snd_pcm_hw_constraint_integer(runtime, SNDRV_PCM_HW_PARAM_PERIODS)) < 0) return err; /* Force DMA 32 bit alignment */ if ((err = snd_pcm_hw_constraint_step(runtime, 0, SNDRV_PCM_HW_PARAM_PERIOD_BYTES, 4)) < 0) return err; Now PCM works correctly, but some apps, like aplay fail to play some formats, because they get their period size requirementes rejected, and they just give up instead of trying other period sizes. Since aplay uses a time based criteria for the period sizes instead of "sane" values, the period sizes are very odd. The question is, should i blame aplay or try to implement some workaround in the Aureal driver ?? Best Regards. Manuel Jander ------------------------------------------------------- This sf.net email is sponsored by:ThinkGeek Welcome to geek heaven. http://thinkgeek.com/sf _______________________________________________ Alsa-devel mailing list [EMAIL PROTECTED] https://lists.sourceforge.net/lists/listinfo/alsa-devel
