Frank Thomas via Alsa-user wrote: > On Mon, 2018-06-04 at 15:23 +0200, Clemens Ladisch via Alsa-user wrote: >> Frank Thomas via Alsa-user wrote: >>> The actual sound controller is connected via an I²S interface and >>> synchronizes on its the word select signal. After the synchronisation, >>> additional configuration must to occur before you can get valid samples >> >> Then why don't you do the configuration in the driver? > > The configuration is done with an userspace stack/framework which is > provided by the manufacturer of the controller. And how does that manufacturer tell you to use it? Anyway, it might be possible to write an external filter plugin: https://www.alsa-project.org/alsa-doc/alsa-lib/pcm_external_plugins.html Does the kernel driver start the I²S clocks in hw_params() or in trigger()? Regards, Clemens ------------------------------------------------------------------------------ Check out the vibrant tech community on one of the world's most engaging tech sites, Slashdot.org! http://sdm.link/slashdot _______________________________________________ Alsa-user mailing list Alsa-user@xxxxxxxxxxxxxxxxxxxxx https://lists.sourceforge.net/lists/listinfo/alsa-user
