root@ubuntu:/home/orin# for i in `find /sys/kernel/debug/tracing/events -name "enable" | grep snd_soc_`; do echo 1 > $i; done root@ubuntu:/home/orin# cat /sys/kernel/debug/tracing/trace_pipe | grep \* <...>-14279 [001] .... 1407.519542: snd_soc_dapm_path: *ADMAIF2 XBAR-RX <- (direct) <- ADMAIF2 XBAR-Playback <...>-14279 [001] .... 1407.519647: snd_soc_dapm_path: *I2S2 Mux <- ADMAIF2 <- ADMAIF2 XBAR-RX aplay-14279 [001] .... 1407.519717: snd_soc_dapm_path: *I2S1 Mux <- ADMAIF2 <- ADMAIF2 XBAR-RX aplay-14279 [001] .... 1407.519721: snd_soc_dapm_path: *I2S2 XBAR-TX <- (direct) <- I2S2 Mux aplay-14279 [001] .... 1407.519724: snd_soc_dapm_path: *I2S1 XBAR-TX <- (direct) <- I2S1 Mux aplay-14279 [001] .... 1407.519726: snd_soc_dapm_path: *I2S2 XBAR-Capture <- (direct) <- I2S2 XBAR-TX aplay-14279 [001] .... 1407.519730: snd_soc_dapm_path: *I2S1 XBAR-Capture <- (direct) <- I2S1 XBAR-TX aplay-14279 [001] .... 1407.519732: snd_soc_dapm_path: *tegra-dlink-65-playback <- (direct) <- I2S2 XBAR-Capture aplay-14279 [001] .... 1407.519735: snd_soc_dapm_path: *tegra-dlink-64-playback <- (direct) <- I2S1 XBAR-Capture aplay-14279 [001] .... 1407.519738: snd_soc_dapm_path: *I2S2 CIF-Playback <- (direct) <- tegra-dlink-65-playback aplay-14279 [001] .... 1407.519740: snd_soc_dapm_path: *I2S1 CIF-Playback <- (direct) <- tegra-dlink-64-playback aplay-14279 [001] .... 1407.519744: snd_soc_dapm_path: *I2S2 RX <- (direct) <- I2S2 CIF-Playback aplay-14279 [001] .... 1407.519747: snd_soc_dapm_path: *I2S1 RX <- (direct) <- I2S1 CIF-Playback aplay-14279 [001] .... 1407.519750: snd_soc_dapm_path: *I2S2 DAP-Capture <- (direct) <- I2S2 RX aplay-14279 [001] .... 1407.519752: snd_soc_dapm_path: *I2S1 DAP-Capture <- (direct) <- I2S1 RX aplay-14279 [001] .... 1407.519754: snd_soc_dapm_path: *tegra-dlink-77-playback <- (direct) <- I2S2 DAP-Capture aplay-14279 [001] .... 1407.519758: snd_soc_dapm_path: *ti-capture-playback <- (direct) <- I2S1 DAP-Capture aplay-14279 [001] .... 1407.519760: snd_soc_dapm_path: *I2S2 Dummy-Playback <- (direct) <- tegra-dlink-77-playback aplay-14279 [001] .... 1407.519762: snd_soc_dapm_path: *tlv Playback <- (direct) <- ti-capture-playback aplay-14279 [001] .... 1407.519766: snd_soc_dapm_path: *I2S2 SPK <- (direct) <- I2S2 Dummy-Playback aplay-14279 [001] .... 1407.519768: snd_soc_dapm_path: *tlv Right DAC <- (direct) <- tlv Playback aplay-14279 [001] .... 1407.519770: snd_soc_dapm_path: *tlv Right DAC <- (direct) <- tlv Playback aplay-14279 [001] .... 1407.519774: snd_soc_dapm_path: *tlv Left DAC <- (direct) <- tlv Playback aplay-14279 [001] .... 1407.519775: snd_soc_dapm_path: *tlv Left DAC <- (direct) <- tlv Playback aplay-14279 [001] .... 1407.519779: snd_soc_dapm_path: *tlv LOR Output Mixer <- R_DAC Switch <- tlv Right DAC aplay-14279 [001] .... 1407.519784: snd_soc_dapm_path: *tlv HPR Output Mixer <- R_DAC Switch <- tlv Right DAC aplay-14279 [001] .... 1407.519787: snd_soc_dapm_path: *tlv LOL Output Mixer <- L_DAC Switch <- tlv Left DAC aplay-14279 [001] .... 1407.519791: snd_soc_dapm_path: *tlv HPL Output Mixer <- L_DAC Switch <- tlv Left DAC aplay-14279 [001] .... 1407.519794: snd_soc_dapm_path: *tlv LOR Power <- (direct) <- tlv LOR Output Mixer aplay-14279 [001] .... 1407.519796: snd_soc_dapm_path: *tlv HPR Power <- (direct) <- tlv HPR Output Mixer aplay-14279 [001] .... 1407.519800: snd_soc_dapm_path: *tlv LOL Power <- (direct) <- tlv LOL Output Mixer aplay-14279 [001] .... 1407.519802: snd_soc_dapm_path: *tlv HPL Power <- (direct) <- tlv HPL Output Mixer aplay-14279 [001] .... 1407.519804: snd_soc_dapm_path: *tlv LOR <- (direct) <- tlv LOR Power aplay-14279 [001] .... 1407.519807: snd_soc_dapm_path: *tlv HPR <- (direct) <- tlv HPR Power aplay-14279 [001] .... 1407.519809: snd_soc_dapm_path: *tlv LOL <- (direct) <- tlv LOL Power aplay-14279 [001] .... 1407.519810: snd_soc_dapm_path: *tlv HPL <- (direct) <- tlv HPL Power aplay-14279 [001] .... 1407.519812: snd_soc_dapm_path: *tlv Headphone <- (direct) <- tlv HPR aplay-14279 [001] .... 1407.519813: snd_soc_dapm_path: *tlv Headphone <- (direct) <- tlv HPL aplay-14279 [001] .... 1407.519815: snd_soc_dapm_path: *tlv Headphone <- (direct) <- tlv LOR aplay-14279 [001] .... 1407.519815: snd_soc_dapm_path: *tlv Headphone <- (direct) <- tlv LOL aplay-14279 [001] .... 1441.153119: snd_soc_dapm_path: *ADMAIF2 XBAR-Playback <- (direct) <- tegra-dlink-45-playback aplay-14279 [001] .... 1441.153121: snd_soc_dapm_path: *ADMAIF2 XBAR-Playback <- (direct) <- ADMAIF2 Playback aplay-14279 [001] .... 1441.153123: snd_soc_dapm_path: *ADMAIF2 XBAR-RX <- (direct) <- ADMAIF2 XBAR-Playback aplay-14279 [001] .... 1441.153230: snd_soc_dapm_path: *I2S2 Mux <- ADMAIF2 <- ADMAIF2 XBAR-RX aplay-14279 [001] .... 1441.153280: snd_soc_dapm_path: *I2S1 Mux <- ADMAIF2 <- ADMAIF2 XBAR-RX aplay-14279 [001] .... 1441.153282: snd_soc_dapm_path: *I2S2 XBAR-TX <- (direct) <- I2S2 Mux aplay-14279 [001] .... 1441.153284: snd_soc_dapm_path: *I2S1 XBAR-TX <- (direct) <- I2S1 Mux aplay-14279 [001] .... 1441.153308: snd_soc_dapm_path: *I2S2 XBAR-Capture <- (direct) <- I2S2 XBAR-TX aplay-14279 [001] .... 1441.153312: snd_soc_dapm_path: *I2S1 XBAR-Capture <- (direct) <- I2S1 XBAR-TX aplay-14279 [001] .... 1441.153314: snd_soc_dapm_path: *tegra-dlink-65-playback <- (direct) <- I2S2 XBAR-Capture aplay-14279 [001] .... 1441.153315: snd_soc_dapm_path: *tegra-dlink-64-playback <- (direct) <- I2S1 XBAR-Capture aplay-14279 [001] .... 1441.153318: snd_soc_dapm_path: *I2S2 CIF-Playback <- (direct) <- tegra-dlink-65-playback aplay-14279 [001] .... 1441.153321: snd_soc_dapm_path: *I2S1 CIF-Playback <- (direct) <- tegra-dlink-64-playback aplay-14279 [001] .... 1441.153322: snd_soc_dapm_path: *I2S2 RX <- (direct) <- I2S2 CIF-Playback aplay-14279 [001] .... 1441.153324: snd_soc_dapm_path: *I2S1 RX <- (direct) <- I2S1 CIF-Playback aplay-14279 [001] .... 1441.153326: snd_soc_dapm_path: *I2S2 DAP-Capture <- (direct) <- I2S2 RX aplay-14279 [001] .... 1441.153327: snd_soc_dapm_path: *I2S1 DAP-Capture <- (direct) <- I2S1 RX aplay-14279 [001] .... 1441.153330: snd_soc_dapm_path: *tegra-dlink-77-playback <- (direct) <- I2S2 DAP-Capture aplay-14279 [001] .... 1441.153332: snd_soc_dapm_path: *ti-capture-playback <- (direct) <- I2S1 DAP-Capture aplay-14279 [001] .... 1441.153334: snd_soc_dapm_path: *I2S2 Dummy-Playback <- (direct) <- tegra-dlink-77-playback aplay-14279 [001] .... 1441.153336: snd_soc_dapm_path: *tlv Playback <- (direct) <- ti-capture-playback aplay-14279 [001] .... 1441.153339: snd_soc_dapm_path: *I2S2 SPK <- (direct) <- I2S2 Dummy-Playback aplay-14279 [001] .... 1441.153340: snd_soc_dapm_path: *tlv Right DAC <- (direct) <- tlv Playback aplay-14279 [001] .... 1441.153341: snd_soc_dapm_path: *tlv Right DAC <- (direct) <- tlv Playback aplay-14279 [001] .... 1441.153343: snd_soc_dapm_path: *tlv Left DAC <- (direct) <- tlv Playback aplay-14279 [001] .... 1441.153344: snd_soc_dapm_path: *tlv Left DAC <- (direct) <- tlv Playback aplay-14279 [001] .... 1441.153347: snd_soc_dapm_path: *tlv LOR Output Mixer <- R_DAC Switch <- tlv Right DAC aplay-14279 [001] .... 1441.153350: snd_soc_dapm_path: *tlv HPR Output Mixer <- R_DAC Switch <- tlv Right DAC aplay-14279 [001] .... 1441.153353: snd_soc_dapm_path: *tlv LOL Output Mixer <- L_DAC Switch <- tlv Left DAC aplay-14279 [001] .... 1441.153356: snd_soc_dapm_path: *tlv HPL Output Mixer <- L_DAC Switch <- tlv Left DAC aplay-14279 [001] .... 1441.153357: snd_soc_dapm_path: *tlv LOR Power <- (direct) <- tlv LOR Output Mixer aplay-14279 [001] .... 1441.153359: snd_soc_dapm_path: *tlv HPR Power <- (direct) <- tlv HPR Output Mixer aplay-14279 [001] .... 1441.153360: snd_soc_dapm_path: *tlv LOL Power <- (direct) <- tlv LOL Output Mixer aplay-14279 [001] .... 1441.153362: snd_soc_dapm_path: *tlv HPL Power <- (direct) <- tlv HPL Output Mixer aplay-14279 [001] .... 1441.153363: snd_soc_dapm_path: *tlv LOR <- (direct) <- tlv LOR Power aplay-14279 [001] .... 1441.153365: snd_soc_dapm_path: *tlv HPR <- (direct) <- tlv HPR Power aplay-14279 [001] .... 1441.153366: snd_soc_dapm_path: *tlv LOL <- (direct) <- tlv LOL Power aplay-14279 [001] .... 1441.153368: snd_soc_dapm_path: *tlv HPL <- (direct) <- tlv HPL Power aplay-14279 [001] .... 1441.153369: snd_soc_dapm_path: *tlv Headphone <- (direct) <- tlv HPR aplay-14279 [001] .... 1441.153370: snd_soc_dapm_path: *tlv Headphone <- (direct) <- tlv HPL aplay-14279 [001] .... 1441.153370: snd_soc_dapm_path: *tlv Headphone <- (direct) <- tlv LOR aplay-14279 [001] .... 1441.153370: snd_soc_dapm_path: *tlv Headphone <- (direct) <- tlv LOL alsa-sink-tegra-9074 [003] .... 1441.301528: snd_soc_dapm_path: *ADMAIF1 XBAR-Playback <- (direct) <- tegra-dlink-44-playback alsa-sink-tegra-9074 [003] .... 1441.301536: snd_soc_dapm_path: *ADMAIF1 XBAR-Playback <- (direct) <- ADMAIF1 Playback