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dmesg | grep rt5640
[   10.208437] bytcr_rt5640 bytcr_rt5640: quirk IN3_MAP enabled
[   10.208443] bytcr_rt5640 bytcr_rt5640: quirk realtek,jack-detect-source 2
[   10.208447] bytcr_rt5640 bytcr_rt5640: quirk realtek,over-current-threshold-microamp 2000
[   10.208450] bytcr_rt5640 bytcr_rt5640: quirk realtek,over-current-scale-factor 1
[   10.208452] bytcr_rt5640 bytcr_rt5640: quirk DIFF_MIC enabled
[   10.208455] bytcr_rt5640 bytcr_rt5640: quirk SSP0_AIF2 enabled
[   10.208458] bytcr_rt5640 bytcr_rt5640: quirk MCLK_EN enabled
[   10.255502] bytcr_rt5640 bytcr_rt5640: snd-soc-dummy-dai <-> media-cpu-dai mapping ok
[   10.255949] bytcr_rt5640 bytcr_rt5640: snd-soc-dummy-dai <-> deepbuffer-cpu-dai mapping ok
[   10.275599] bytcr_rt5640 bytcr_rt5640: rt5640-aif2 <-> ssp0-port mapping ok
[   10.283126] input: bytcr-rt5640 Headset as /devices/platform/80860F28:00/bytcr_rt5640/sound/card1/input23

 1 card(s) available.
    index: 0
	name: <alsa_card.platform-bytcr_rt5640>
	driver: <module-alsa-card.c>
	owner module: 7
	properties:
		alsa.card = "0"
		alsa.card_name = "bytcr-rt5640"
		alsa.long_card_name = "bytcr-rt5640-stereo-spk-in3-mic"
		alsa.driver_name = "snd_soc_sst_bytcr_rt5640"
		device.bus_path = "platform-bytcr_rt5640"
		sysfs.path = "/devices/platform/80860F28:00/bytcr_rt5640/sound/card0"
		device.form_factor = "internal"
		device.string = "0"
		device.description = "Built-in Audio"
		module-udev-detect.discovered = "1"
		device.icon_name = "audio-card"
	profiles:
		HiFi: Play HiFi quality Music (priority 8000, available: unknown)
		off: Off (priority 0, available: unknown)
	active profile: <HiFi>
	sinks:
		alsa_output.platform-bytcr_rt5640.HiFi__hw_bytcrrt5640__sink/#0: Built-in Audio Speakers + Headphones
	sources:
		alsa_output.platform-bytcr_rt5640.HiFi__hw_bytcrrt5640__sink.monitor/#0: Monitor of Built-in Audio Speakers + Headphones
		alsa_input.platform-bytcr_rt5640.HiFi__hw_bytcrrt5640__source/#1: Built-in Audio Internal Microphone on IN3 + Headset Microphone
	ports:
		[Out] Speaker: Speakers (priority 100, latency offset 0 usec, available: unknown)
			properties:
				
		[Out] Headphones: Headphones (priority 300, latency offset 0 usec, available: no)
			properties:
				
		[In] Mic: Internal Microphone on IN3 (priority 100, latency offset 0 usec, available: unknown)
			properties:
				
		[In] Headset: Headset Microphone (priority 200, latency offset 0 usec, available: no)
			properties:

 1 sink(s) available.
  * index: 0
	name: <alsa_output.platform-bytcr_rt5640.HiFi__hw_bytcrrt5640__sink>
	driver: <module-alsa-card.c>
	flags: HARDWARE DECIBEL_VOLUME LATENCY DYNAMIC_LATENCY
	state: SUSPENDED
	suspend cause: IDLE
	priority: 9000
	volume: front-left: 43909 /  67% / -10,44 dB,   front-right: 43909 /  67% / -10,44 dB
	        balance 0,00
	base volume: 65536 / 100% / 0,00 dB
	volume steps: 65537
	muted: no
	current latency: 0,00 ms
	max request: 0 KiB
	max rewind: 0 KiB
	monitor source: 0
	sample spec: s16le 2ch 48000Hz
	channel map: front-left,front-right
	             Stereo
	used by: 0
	linked by: 1
	configured latency: 0,00 ms; range is 0,50 .. 2000,00 ms
	card: 1 <alsa_card.platform-bytcr_rt5640>
	module: 8
	properties:
		alsa.resolution_bits = "16"
		device.api = "alsa"
		device.class = "sound"
		alsa.class = "generic"
		alsa.subclass = "generic-mix"
		alsa.name = ""
		alsa.id = "1"
		alsa.subdevice = "0"
		alsa.subdevice_name = "subdevice #0"
		alsa.device = "0"
		alsa.card = "1"
		alsa.card_name = "bytcr-rt5640"
		alsa.long_card_name = "bytcr-rt5640-stereo-spk-in3-mic"
		alsa.driver_name = "snd_soc_sst_bytcr_rt5640"
		device.bus_path = "platform-bytcr_rt5640"
		sysfs.path = "/devices/platform/80860F28:00/bytcr_rt5640/sound/card1"
		device.form_factor = "internal"
		device.string = "hw:bytcrrt5640"
		device.buffering.buffer_size = "384000"
		device.buffering.fragment_size = "192000"
		device.access_mode = "mmap+timer"
		device.profile.name = "HiFi: hw:bytcrrt5640: sink"
		device.profile.description = "Speakers + Headphones"
		alsa.mixer_device = "hw:bytcrrt5640"
		device.description = "Built-in Audio Speakers + Headphones"
		module-udev-detect.discovered = "1"
		device.icon_name = "audio-card"
	ports:
		[Out] Speaker: Speakers (priority 100, latency offset 0 usec, available: unknown)
			properties:
				
		[Out] Headphones: Headphones (priority 300, latency offset 0 usec, available: no)
			properties:
	active port: <[Out] Speaker>