Rob Nertney wrote: > is the best method to build a sound card and a capture PCM? As compared to what? Any other method will not allow your hardware to be used for audio recording. > do I copy the DMA buffer address in the TRIGGER case statements? Your trigger callback is responsible for starting and stopping the DMA; nothing else. > I'm not sure where to do the framing of the data. This is done by the hardware. Your driver just describes the format of the data. > Most of the tutorials seem to imply an IRQ signals a frame of data has > transferred No, the DMA interrupt typically signals that a period of data has been transferred. How exactly does your DMA controller work? (And development questions belong on the alsa-devel list.) Regards, Clemens ------------------------------------------------------------------------------ Find and fix application performance issues faster with Applications Manager Applications Manager provides deep performance insights into multiple tiers of your business applications. It resolves application problems quickly and reduces your MTTR. Get your free trial! https://ad.doubleclick.net/ddm/clk/302982198;130105516;z _______________________________________________ Alsa-user mailing list Alsa-user@xxxxxxxxxxxxxxxxxxxxx https://lists.sourceforge.net/lists/listinfo/alsa-user
