It seems they are using sof-firmware.
Card #52
Name: alsa_card.pci-0000_00_1f.3-platform-skl_hda_dsp_generic
Driver: alsa
Owner Module: n/a
Properties:
device.enum.api = "udev"
device.api = "alsa"
media.class = "Audio/Device"
api.alsa.path = "hw:0"
api.alsa.card = "0"
api.alsa.card.name = "sof-hda-dsp"
api.alsa.card.longname = "LGElectronics-17Z90TR_SD7WK-0.1-17Z90TR"
device.plugged.usec = "5195162"
device.bus_path = "pci-0000:00:1f.3-platform-skl_hda_dsp_generic"
sysfs.path = "/devices/pci0000:00/0000:00:1f.3/skl_hda_dsp_generic/sound/card0"
device.bus = "pci"
device.subsystem = "sound"
device.vendor.id = "0x8086"
device.vendor.name = "Intel Corporation"
device.product.id = "0x7728"
device.product.name = "Arrow Lake cAVS"
device.name = "alsa_card.pci-0000_00_1f.3-platform-skl_hda_dsp_generic"
device.description = "Arrow Lake cAVS"
device.nick = "sof-hda-dsp"
device.icon_name = "audio-card-analog-pci"
api.alsa.use-acp = "true"
api.acp.auto-profile = "false"
api.acp.auto-port = "false"
api.dbus.ReserveDevice1.Priority = "-20"
api.alsa.split-enable = "true"
api.dbus.ReserveDevice1 = "Audio0"
spa.object.id = "2"
factory.id = "15"
client.id = "46"
object.id = "52"
object.serial = "52"
object.path = "alsa:acp:sofhdadsp"
alsa.card = "0"
alsa.card_name = "sof-hda-dsp"
alsa.long_card_name = "LGElectronics-17Z90TR_SD7WK-0.1-17Z90TR"
alsa.driver_name = "snd_soc_skl_hda_dsp"
alsa.mixer_name = "Realtek ALC298"
alsa.components = "HDA:8086281d,80860101,00100000 HDA:10ec0298,18540549,00100103 cfg-dmics:2 iec61937-pcm:5,4,3"
alsa.id = "sofhdadsp"
device.string = "0"
Profiles:
off: 끄기 (sinks: 0, sources: 0, priority: 0, available: yes)
HiFi (HDMI1, HDMI2, HDMI3, Headphones, Mic1, Mic2): Play HiFi quality Music (HDMI1, HDMI2, HDMI3, Headphones, Mic1, Mic2) (sinks: 4, sources: 2, priority: 10300, available: no)
HiFi (HDMI1, HDMI2, HDMI3, Mic1, Mic2, Speaker): Play HiFi quality Music (HDMI1, HDMI2, HDMI3, Mic1, Mic2, Speaker) (sinks: 4, sources: 2, priority: 10200, available: yes)
pro-audio: Pro Audio (sinks: 5, sources: 2, priority: 1, available: yes)
Active Profile: pro-audio
Ports:
[Out] HDMI3: HDMI / DisplayPort 3 Output (type: HDMI, priority: 700, latency offset: 0 usec, availability group: HDMI/DP,pcm=5, not available)
Properties:
port.type = "hdmi"
port.availability-group = "HDMI/DP,pcm=5"
device.icon_name = "video-display"
card.profile.port = "0"
Part of profile(s): HiFi (HDMI1, HDMI2, HDMI3, Mic1, Mic2, Speaker), HiFi (HDMI1, HDMI2, HDMI3, Headphones, Mic1, Mic2)
[Out] HDMI2: HDMI / DisplayPort 2 Output (type: HDMI, priority: 600, latency offset: 0 usec, availability group: HDMI/DP,pcm=4, not available)
Properties:
port.type = "hdmi"
port.availability-group = "HDMI/DP,pcm=4"
device.icon_name = "video-display"
card.profile.port = "1"
Part of profile(s): HiFi (HDMI1, HDMI2, HDMI3, Mic1, Mic2, Speaker), HiFi (HDMI1, HDMI2, HDMI3, Headphones, Mic1, Mic2)
[Out] HDMI1: HDMI / DisplayPort 1 Output (type: HDMI, priority: 500, latency offset: 0 usec, availability group: HDMI/DP,pcm=3, not available)
Properties:
port.type = "hdmi"
port.availability-group = "HDMI/DP,pcm=3"
device.icon_name = "video-display"
card.profile.port = "2"
Part of profile(s): HiFi (HDMI1, HDMI2, HDMI3, Mic1, Mic2, Speaker), HiFi (HDMI1, HDMI2, HDMI3, Headphones, Mic1, Mic2)
[Out] Speaker: Speaker (type: Speaker, priority: 100, latency offset: 0 usec, availability unknown)
Properties:
port.type = "speaker"
device.icon_name = "audio-speakers"
card.profile.port = "3"
Part of profile(s): HiFi (HDMI1, HDMI2, HDMI3, Mic1, Mic2, Speaker)
[In] Mic2: Stereo Microphone (type: Mic, priority: 200, latency offset: 0 usec, availability group: Mic, not available)
Properties:
port.type = "mic"
port.availability-group = "Mic"
device.icon_name = "audio-input-microphone"
card.profile.port = "4"
Part of profile(s): HiFi (HDMI1, HDMI2, HDMI3, Mic1, Mic2, Speaker), HiFi (HDMI1, HDMI2, HDMI3, Headphones, Mic1, Mic2)
[In] Mic1: Digital Microphone (type: Mic, priority: 100, latency offset: 0 usec, availability unknown)
Properties:
port.type = "mic"
device.icon_name = "audio-input-microphone"
card.profile.port = "5"
Part of profile(s): HiFi (HDMI1, HDMI2, HDMI3, Mic1, Mic2, Speaker), HiFi (HDMI1, HDMI2, HDMI3, Headphones, Mic1, Mic2)
[Out] Headphones: Headphones (type: Headphones, priority: 200, latency offset: 0 usec, availability group: Headphone, not available)
Properties:
port.type = "headphones"
port.availability-group = "Headphone"
device.icon_name = "audio-headphones"
card.profile.port = "6"
Part of profile(s): HiFi (HDMI1, HDMI2, HDMI3, Headphones, Mic1, Mic2)