https://community.nxp.com/t5/i-MX-Processors/SAI-sync-and-clk/m-p/1315470#M177659 <P>Im writing a driver to control the sai in kernel space (not alsa)&nbsp;</P><P>Im just wondering, if the transmitter is enabled but theres no data in the fifo will clk and fsync still be output? Because im calling the trigger function of the fsl_sai driver but I see no clk or fsync being generated on the pins with my scope.&nbsp;</P> Thu, 29 Jul 2021 21:17:02 GMT andrwebb 2021-07-29T21:17:02Z https://community.nxp.com/t5/i-MX-Processors/SAI-sync-and-clk/m-p/1315470#M177659 <P>Im writing a driver to control the sai in kernel space (not alsa)&nbsp;</P><P>Im just wondering, if the transmitter is enabled but theres no data in the fifo will clk and fsync still be output? Because im calling the trigger function of the fsl_sai driver but I see no clk or fsync being generated on the pins with my scope.&nbsp;</P> Thu, 29 Jul 2021 21:17:02 GMT https://community.nxp.com/t5/i-MX-Processors/SAI-sync-and-clk/m-p/1315470#M177659 andrwebb 2021-07-29T21:17:02Z https://community.nxp.com/t5/i-MX-Processors/SAI-sync-and-clk/m-p/1315491#M177660 <P>Nevermind i think it was runtime power management that was messing me up.&nbsp;</P> Thu, 29 Jul 2021 22:11:08 GMT https://community.nxp.com/t5/i-MX-Processors/SAI-sync-and-clk/m-p/1315491#M177660 andrwebb 2021-07-29T22:11:08Z