Takashi Iwai wrote: > Right now there is no "elegant" way for this, unfortunately. > A common way many drivers use is to remember the rate of the first > stream, then add it to hw_constraint of the secondary streams. Can you give me an example of a driver that does this? I can't seem to find one. > But, this could be also a bit racy (unavoidable due to its design) > although practically it seems working. I've been trying to implement this, but I'm not sure how. I have a couple questions: 1) Which snd_pcm_hw_constraint_xxx function should I use to specify a sample rate or sample size constraint of a single number? I'm thinking snd_pcm_hw_constraint_list(). 2) Where should I be calling this function? In my _hw_params() function? What I would like to do is require the constraint to be enforced only when a stream is already playing. That is, if playback is paused, then the capture stream can set any sample rate it wants. Is this doable, or just too complicated? -- Timur Tabi Linux kernel developer at Freescale _______________________________________________ Alsa-devel mailing list Alsa-devel@xxxxxxxxxxxxxxxx http://mailman.alsa-project.org/mailman/listinfo/alsa-devel