Re: [GIT PULL] sound updates for 5.16-rc1

From: Kirill A. Shutemov
Date: Wed Nov 17 2021 - 12:48:35 EST

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In reply to: Takashi Iwai: "Re: [GIT PULL] sound updates for 5.16-rc1"
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On Wed, Nov 17, 2021 at 05:24:28PM +0100, Takashi Iwai wrote:
> On Wed, 17 Nov 2021 17:18:55 +0100,
> Kirill A. Shutemov wrote:
> >
> > On Wed, Nov 03, 2021 at 11:24:10AM +0100, Takashi Iwai wrote:
> > > Linus,
> > >
> > > please pull sound updates for v5.16-rc1 from:
> > >
> > > git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound.git tags/sound-5.16-rc1
> > >
> > > The topmost commit is df0380b9539b04c1ae8854a984098da06d5f1e67
> > >
> > > ----------------------------------------------------------------
> > >
> > > sound updates for 5.16-rc1
> > >
> > > Lots of code development have been see in ASoC side as usual, while
> > > the continued development on memalloc helper and USB-audio low-
> > > latency support are found in the rest. Note that a few changes in the
> > > unusual places like arch/sh are included, which are a part of ASoC DAI
> > > format cleanups.
> > >
> > > ALSA core:
> > > - Continued memallloc helper updates and cleanups, now supporting
> > > non-coherent and non-contiguous pages
> > > - Fixes for races in mixer OSS layer
> > >
> > > ASoC:
> > > - A new version of the audio graph card which supports a wider range
> > > of systems
> > > - Several conversions to YAML DT bindings
> > > - Continuing cleanups to the SOF and Intel code
> > > - Move of the Cirrus DSP framework into drivers/firmware to allow for
> > > future use by non-audio DSPs
> > > - An overhaul of the cs42l42 driver, correcting many problems
> > > - DAI format terminology conversions over many drivers for cleanups
> > > - Support for AMD Vangogh and Yelow Cap, Cirrus CS35L41, Maxim
> > > MAX98520 and MAX98360A, Mediatek MT8195, Nuvoton NAU8821, nVidia
> > > Tegra210, NXP i.MX8ULP, Qualcomm AudioReach, Realtek ALC5682I-VS,
> > > RT5682S, and RT9120 and Rockchip RV1126 and RK3568
> > >
> > > USB-audio:
> > > - Continued improvements on low-latency playback
> > > - Quirks for Pioneer devices, Line6 HX-Stomp XL, Audient iD14
> > >
> > > HD-audio:
> > > - Reduce excessive udelay() calls on Intel platforms; this should
> > > reduce the CPU load with PulseAudio
> > > - Quirks for HP and Clevo laptops
> > >
> > > FireWire:
> > > - Support for meter information on MOTU
> > >
> >
> > ...
> >
> > > Takashi Iwai (29):
> > > ALSA: hda: Reduce udelay() at SKL+ position reporting
> > > ALSA: hda: Use position buffer for SKL+ again
> > > ALSA: usb-audio: Restrict rates for the shared clocks
> > > ALSA: usb-audio: Fix possible race at sync of urb completions
> > > ALSA: usb-audio: Rename early_playback_start flag with lowlatency_playback
> > > ALSA: usb-audio: Disable low-latency playback for free-wheel mode
> > > ALSA: usb-audio: Disable low-latency mode for implicit feedback sync
> > > ALSA: usb-audio: Check available frames for the next packet size
> > > ALSA: usb-audio: Add spinlock to stop_urbs()
> > > ALSA: usb-audio: Improved lowlatency playback support
> >
> > This commit breaks audio playback for me. The sample plays for fraction of
> > a second than stops.
> >
> > I use SMSL SA300. Let me know what ifo is needed to track it down.
> >
> > Also I can test potential fixups if needed.
>
> Could you give alsa-info.sh output with the device? Run the script
> with --no-upload option, and attach the output.

Attached. I run it on kernel without the commit. I hope it is fine.

One note: I use monolitic kernel without CONFIG_MODULES. The script
complained about missing /proc/asound/modules and other modules related
stuff.

> Also /proc/asound/card*/stream* file for that usb device, too,
> please.

Attached.

> And, which environment are you testing, more exactly? Which platform,
> and with PulseAudio, pipewire, JACK, or direct ALSA device use?

Nothing fancy. Direct ALSA. I tested with 'speaker-test -c2 -t wav' during
bisect.

> For checking the behavior, we'd need to check hw_params in
> /proc/asound/card*/pcm*/sub*/* for the corresponding device during
> playback/capture operations.

You need this to be collected when the problem triggers, right?
I will follow up with this.

--
Kirill A. Shutemov
upload=true&script=true&cardinfo=
!!################################
!!ALSA Information Script v 0.5.0
!!################################

!!Script ran on: Wed Nov 17 17:43:16 UTC 2021

!!Linux Distribution
!!------------------

Gentoo Base System release 2.7 NAME=Gentoo ID=gentoo PRETTY_NAME="Gentoo/Linux" HOME_URL="https://www.gentoo.org/"; SUPPORT_URL="https://www.gentoo.org/support/"; BUG_REPORT_URL="https://bugs.gentoo.org/";

!!DMI Information
!!---------------

Manufacturer: Gigabyte Technology Co., Ltd.
Product Name: X299 AORUS Gaming 3 Pro
Product Version: Default string
Firmware Version: F5d
System SKU: Default string
Board Vendor: Gigabyte Technology Co., Ltd.
Board Name: X299 AORUS Gaming 3 Pro-CF

!!ACPI Device Status Information
!!---------------

/sys/bus/acpi/devices/ACPI0004:00/status 15
/sys/bus/acpi/devices/INT340E:00/status 15
/sys/bus/acpi/devices/LNXCPU:00/status 15
/sys/bus/acpi/devices/LNXCPU:01/status 15
/sys/bus/acpi/devices/LNXCPU:02/status 15
/sys/bus/acpi/devices/LNXCPU:03/status 15
/sys/bus/acpi/devices/LNXCPU:04/status 15
/sys/bus/acpi/devices/LNXCPU:05/status 15
/sys/bus/acpi/devices/LNXCPU:06/status 15
/sys/bus/acpi/devices/LNXCPU:07/status 15
/sys/bus/acpi/devices/LNXCPU:08/status 15
/sys/bus/acpi/devices/LNXCPU:09/status 15
/sys/bus/acpi/devices/LNXCPU:0a/status 15
/sys/bus/acpi/devices/LNXCPU:0b/status 15
/sys/bus/acpi/devices/LNXCPU:0c/status 15
/sys/bus/acpi/devices/LNXCPU:0d/status 15
/sys/bus/acpi/devices/LNXCPU:0e/status 15
/sys/bus/acpi/devices/LNXCPU:0f/status 15
/sys/bus/acpi/devices/LNXCPU:10/status 15
/sys/bus/acpi/devices/LNXCPU:11/status 15
/sys/bus/acpi/devices/LNXCPU:12/status 15
/sys/bus/acpi/devices/LNXCPU:13/status 15
/sys/bus/acpi/devices/LNXCPU:14/status 15
/sys/bus/acpi/devices/LNXCPU:15/status 15
/sys/bus/acpi/devices/LNXCPU:16/status 15
/sys/bus/acpi/devices/LNXCPU:17/status 15
/sys/bus/acpi/devices/LNXCPU:18/status 15
/sys/bus/acpi/devices/LNXCPU:19/status 15
/sys/bus/acpi/devices/LNXCPU:1a/status 15
/sys/bus/acpi/devices/LNXCPU:1b/status 15
/sys/bus/acpi/devices/LNXCPU:1c/status 15
/sys/bus/acpi/devices/LNXCPU:1d/status 15
/sys/bus/acpi/devices/LNXCPU:1e/status 15
/sys/bus/acpi/devices/LNXCPU:1f/status 15
/sys/bus/acpi/devices/MSFT0101:00/status 15
/sys/bus/acpi/devices/PNP0103:00/status 15
/sys/bus/acpi/devices/PNP0A08:01/status 15
/sys/bus/acpi/devices/PNP0A08:02/status 15
/sys/bus/acpi/devices/PNP0A08:03/status 15
/sys/bus/acpi/devices/PNP0C02:02/status 3
/sys/bus/acpi/devices/PNP0C02:04/status 3
/sys/bus/acpi/devices/PNP0C0C:00/status 15
/sys/bus/acpi/devices/PNP0C0E:00/status 11
/sys/bus/acpi/devices/PNP0C0F:00/status 9
/sys/bus/acpi/devices/PNP0C0F:01/status 9
/sys/bus/acpi/devices/PNP0C0F:02/status 9
/sys/bus/acpi/devices/PNP0C0F:03/status 9
/sys/bus/acpi/devices/PNP0C0F:04/status 9
/sys/bus/acpi/devices/PNP0C0F:05/status 9
/sys/bus/acpi/devices/PNP0C0F:06/status 9
/sys/bus/acpi/devices/PNP0C0F:07/status 9
/sys/bus/acpi/devices/PNP0C14:00/status 15
/sys/bus/acpi/devices/PNP0C14:03/status 11

!!Kernel Information
!!------------------

Kernel release: 5.15.0-rc1-00021-g0ef74366bc15
Operating System: GNU/Linux
Architecture: x86_64
Processor: Intel(R) Core(TM) i9-7960X CPU @ 2.80GHz
SMP Enabled: Yes

!!ALSA Version
!!------------

Driver version: k5.15.0-rc1-00021-g0ef74366bc15
Library version: 1.2.4
Utilities version: 1.2.4

!!Loaded ALSA modules
!!-------------------

!!Sound Servers on this system
!!----------------------------

No sound servers found.

!!Soundcards recognised by ALSA
!!-----------------------------

0 [Audio ]: USB-Audio - TX-384Khz Hifi Type-C Audio
Generic TX-384Khz Hifi Type-C Audio at usb-0000:00:14.0-1, high speed

!!PCI Soundcards installed in the system
!!--------------------------------------

00:1f.3 Audio device [0403]: Intel Corporation 200 Series PCH HD Audio [8086:a2f0]
Subsystem: Gigabyte Technology Co., Ltd 200 Series PCH HD Audio [1458:a182]
65:00.1 Audio device [0403]: NVIDIA Corporation GP104 High Definition Audio Controller [10de:10f0] (rev a1)
Subsystem: Gigabyte Technology Co., Ltd GP104 High Definition Audio Controller [1458:3730]

!!Loaded sound module options
!!---------------------------

!!Sysfs card info
!!---------------

!!Card: /sys/class/sound/card0
Driver: /sys/bus/usb/drivers/snd-usb-audio
Tree:
/sys/class/sound/card0
|-- audio
| |-- dev
| |-- device -> ../../card0
| |-- power
| |-- subsystem -> ../../../../../../../../../class/sound
| `-- uevent
|-- controlC0
| |-- dev
| |-- device -> ../../card0
| |-- power
| |-- subsystem -> ../../../../../../../../../class/sound
| `-- uevent
|-- device -> ../../../1-1:1.0
|-- dsp
| |-- dev
| |-- device -> ../../card0
| |-- power
| |-- subsystem -> ../../../../../../../../../class/sound
| `-- uevent
|-- id
|-- mixer
| |-- dev
| |-- device -> ../../card0
| |-- power
| |-- subsystem -> ../../../../../../../../../class/sound
| `-- uevent
|-- number
|-- pcmC0D0p
| |-- dev
| |-- device -> ../../card0
| |-- pcm_class
| |-- power
| |-- subsystem -> ../../../../../../../../../class/sound
| `-- uevent
|-- power
| |-- autosuspend_delay_ms
| |-- control
| |-- runtime_active_time
| |-- runtime_status
| `-- runtime_suspended_time
|-- subsystem -> ../../../../../../../../class/sound
`-- uevent

!!USB Descriptors
!!---------------
--startcollapse--

Bus 001 Device 002: ID 0bda:4c07 Realtek Semiconductor Corp. TX-384Khz Hifi Type-C Audio
Device Descriptor:
bLength 18
bDescriptorType 1
bcdUSB 2.00
bDeviceClass 239 Miscellaneous Device
bDeviceSubClass 2
bDeviceProtocol 1 Interface Association
bMaxPacketSize0 64
idVendor 0x0bda Realtek Semiconductor Corp.
idProduct 0x4c07
bcdDevice 0.01
iManufacturer 3 Generic
iProduct 1 TX-384Khz Hifi Type-C Audio
iSerial 0
bNumConfigurations 1
Configuration Descriptor:
bLength 9
bDescriptorType 2
wTotalLength 0x011d
bNumInterfaces 3
bConfigurationValue 1
iConfiguration 4 TX-384Khz Hifi Type-C Audio
bmAttributes 0xa0
(Bus Powered)
Remote Wakeup
MaxPower 100mA
Interface Association:
bLength 8
bDescriptorType 11
bFirstInterface 0
bInterfaceCount 2
bFunctionClass 1 Audio
bFunctionSubClass 0
bFunctionProtocol 32
iFunction 5 TX-384Khz Hifi Type-C Audio
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 0
bAlternateSetting 0
bNumEndpoints 1
bInterfaceClass 1 Audio
bInterfaceSubClass 1 Control Device
bInterfaceProtocol 32
iInterface 5 TX-384Khz Hifi Type-C Audio
AudioControl Interface Descriptor:
bLength 9
bDescriptorType 36
bDescriptorSubtype 1 (HEADER)
bcdADC 2.00
bCategory 4
wTotalLength 0x0050
bmControls 0x00
AudioControl Interface Descriptor:
bLength 8
bDescriptorType 36
bDescriptorSubtype 10 (CLOCK_SOURCE)
bClockID 4
bmAttributes 7 Internal programmable clock (synchronized to SOF)
bmControls 0x07
Clock Frequency Control (read/write)
Clock Validity Control (read-only)
bAssocTerminal 0
iClockSource 0
AudioControl Interface Descriptor:
bLength 17
bDescriptorType 36
bDescriptorSubtype 2 (INPUT_TERMINAL)
bTerminalID 10
wTerminalType 0x0101 USB Streaming
bAssocTerminal 0
bCSourceID 4
bNrChannels 2
bmChannelConfig 0x00000003
Front Left (FL)
Front Right (FR)
iChannelNames 0
bmControls 0x0000
iTerminal 0
AudioControl Interface Descriptor:
bLength 12
bDescriptorType 36
bDescriptorSubtype 3 (OUTPUT_TERMINAL)
bTerminalID 16
wTerminalType 0x0302 Headphones
bAssocTerminal 10
bSourceID 22
bCSourceID 4
bmControls 0x0000
iTerminal 0
AudioControl Interface Descriptor:
bLength 18
bDescriptorType 36
bDescriptorSubtype 6 (FEATURE_UNIT)
bUnitID 22
bSourceID 10
bmaControls(0) 0x00000003
Mute Control (read/write)
bmaControls(1) 0x0000000c
Volume Control (read/write)
bmaControls(2) 0x0000000c
Volume Control (read/write)
iFeature 0
AudioControl Interface Descriptor:
bLength 16
bDescriptorType 36
bDescriptorSubtype 9 (EXTENSION_UNIT)
bUnitID 25
wExtensionCode 0x0bda
bNrInPins 1
baSourceID(0) 22
bNrChannels 2
bmChannelConfig 0x00000003
Front Left (FL)
Front Right (FR)
iChannelNames 0
bmControls 0x00
iExtension 0
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x87 EP 7 IN
bmAttributes 3
Transfer Type Interrupt
Synch Type None
Usage Type Data
wMaxPacketSize 0x0010 1x 16 bytes
bInterval 8
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 1
bAlternateSetting 0
bNumEndpoints 0
bInterfaceClass 1 Audio
bInterfaceSubClass 2 Streaming
bInterfaceProtocol 32
iInterface 5 TX-384Khz Hifi Type-C Audio
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 1
bAlternateSetting 1
bNumEndpoints 1
bInterfaceClass 1 Audio
bInterfaceSubClass 2 Streaming
bInterfaceProtocol 32
iInterface 5 TX-384Khz Hifi Type-C Audio
AudioStreaming Interface Descriptor:
bLength 16
bDescriptorType 36
bDescriptorSubtype 1 (AS_GENERAL)
bTerminalLink 10
bmControls 0x00
bFormatType 1
bmFormats 0x00000001
PCM
bNrChannels 2
bmChannelConfig 0x00000003
Front Left (FL)
Front Right (FR)
iChannelNames 0
AudioStreaming Interface Descriptor:
bLength 6
bDescriptorType 36
bDescriptorSubtype 2 (FORMAT_TYPE)
bFormatType 1 (FORMAT_TYPE_I)
bSubslotSize 2
bBitResolution 16
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x04 EP 4 OUT
bmAttributes 9
Transfer Type Isochronous
Synch Type Adaptive
Usage Type Data
wMaxPacketSize 0x00f8 1x 248 bytes
bInterval 1
AudioStreaming Endpoint Descriptor:
bLength 8
bDescriptorType 37
bDescriptorSubtype 1 (EP_GENERAL)
bmAttributes 0x00
bmControls 0x00
bLockDelayUnits 0 Undefined
wLockDelay 0x0000
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 1
bAlternateSetting 2
bNumEndpoints 1
bInterfaceClass 1 Audio
bInterfaceSubClass 2 Streaming
bInterfaceProtocol 32
iInterface 5 TX-384Khz Hifi Type-C Audio
AudioStreaming Interface Descriptor:
bLength 16
bDescriptorType 36
bDescriptorSubtype 1 (AS_GENERAL)
bTerminalLink 10
bmControls 0x00
bFormatType 1
bmFormats 0x00000001
PCM
bNrChannels 2
bmChannelConfig 0x00000003
Front Left (FL)
Front Right (FR)
iChannelNames 0
AudioStreaming Interface Descriptor:
bLength 6
bDescriptorType 36
bDescriptorSubtype 2 (FORMAT_TYPE)
bFormatType 1 (FORMAT_TYPE_I)
bSubslotSize 3
bBitResolution 24
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x04 EP 4 OUT
bmAttributes 9
Transfer Type Isochronous
Synch Type Adaptive
Usage Type Data
wMaxPacketSize 0x0174 1x 372 bytes
bInterval 1
AudioStreaming Endpoint Descriptor:
bLength 8
bDescriptorType 37
bDescriptorSubtype 1 (EP_GENERAL)
bmAttributes 0x00
bmControls 0x00
bLockDelayUnits 0 Undefined
wLockDelay 0x0000
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 1
bAlternateSetting 3
bNumEndpoints 1
bInterfaceClass 1 Audio
bInterfaceSubClass 2 Streaming
bInterfaceProtocol 32
iInterface 5 TX-384Khz Hifi Type-C Audio
AudioStreaming Interface Descriptor:
bLength 16
bDescriptorType 36
bDescriptorSubtype 1 (AS_GENERAL)
bTerminalLink 10
bmControls 0x00
bFormatType 1
bmFormats 0x00000001
PCM
bNrChannels 2
bmChannelConfig 0x00000003
Front Left (FL)
Front Right (FR)
iChannelNames 0
AudioStreaming Interface Descriptor:
bLength 6
bDescriptorType 36
bDescriptorSubtype 2 (FORMAT_TYPE)
bFormatType 1 (FORMAT_TYPE_I)
bSubslotSize 4
bBitResolution 32
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x04 EP 4 OUT
bmAttributes 9
Transfer Type Isochronous
Synch Type Adaptive
Usage Type Data
wMaxPacketSize 0x01f0 1x 496 bytes
bInterval 1
AudioStreaming Endpoint Descriptor:
bLength 8
bDescriptorType 37
bDescriptorSubtype 1 (EP_GENERAL)
bmAttributes 0x00
bmControls 0x00
bLockDelayUnits 0 Undefined
wLockDelay 0x0000
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 2
bAlternateSetting 0
bNumEndpoints 1
bInterfaceClass 3 Human Interface Device
bInterfaceSubClass 0
bInterfaceProtocol 0
iInterface 0
HID Device Descriptor:
bLength 9
bDescriptorType 33
bcdHID 1.11
bCountryCode 0 Not supported
bNumDescriptors 1
bDescriptorType 34 Report
wDescriptorLength 35
Report Descriptors:
** UNAVAILABLE **
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x88 EP 8 IN
bmAttributes 3
Transfer Type Interrupt
Synch Type None
Usage Type Data
wMaxPacketSize 0x0010 1x 16 bytes
bInterval 4
Device Qualifier (for other device speed):
bLength 10
bDescriptorType 6
bcdUSB 2.00
bDeviceClass 239 Miscellaneous Device
bDeviceSubClass 2
bDeviceProtocol 1 Interface Association
bMaxPacketSize0 64
bNumConfigurations 1
Device Status: 0x0000
(Bus Powered)
--endcollapse--

!!USB Stream information
!!----------------------
--startcollapse--

Generic TX-384Khz Hifi Type-C Audio at usb-0000:00:14.0-1, high speed : USB Audio

Playback:
Status: Stop
Interface 1
Altset 1
Format: S16_LE
Channels: 2
Endpoint: 0x04 (4 OUT) (ADAPTIVE)
Rates: 44100, 48000, 96000, 192000, 384000
Data packet interval: 125 us
Bits: 16
Channel map: FL FR
Interface 1
Altset 2
Format: S24_3LE
Channels: 2
Endpoint: 0x04 (4 OUT) (ADAPTIVE)
Rates: 44100, 48000, 96000, 192000, 384000
Data packet interval: 125 us
Bits: 24
Channel map: FL FR
Interface 1
Altset 3
Format: S32_LE
Channels: 2
Endpoint: 0x04 (4 OUT) (ADAPTIVE)
Rates: 44100, 48000, 96000, 192000, 384000
Data packet interval: 125 us
Bits: 32
Channel map: FL FR
--endcollapse--

!!USB Mixer information
!!---------------------
--startcollapse--

USB Mixer: usb_id=0x0bda4c07, ctrlif=0, ctlerr=0
Card: Generic TX-384Khz Hifi Type-C Audio at usb-0000:00:14.0-1, high speed
Unit: 4
Control: name="Clock Source 4 Validity", index=0
Info: id=4, control=2, cmask=0x0, channels=1, type="BOOLEAN"
Volume: min=0, max=1, dBmin=0, dBmax=0
Unit: 22
Control: name="PCM Playback Volume", index=0
Info: id=22, control=2, cmask=0x3, channels=2, type="S16"
Volume: min=-16800, max=0, dBmin=-6562, dBmax=0
Unit: 22
Control: name="PCM Playback Switch", index=0
Info: id=22, control=1, cmask=0x0, channels=1, type="INV_BOOLEAN"
Volume: min=0, max=1, dBmin=0, dBmax=0
--endcollapse--

!!ALSA Device nodes
!!-----------------

crw-rw---- 1 root audio 116, 3 Nov 17 18:59 /dev/snd/controlC0
crw-rw---- 1 root audio 116, 2 Nov 17 19:00 /dev/snd/pcmC0D0p
crw-rw---- 1 root audio 116, 1 Nov 17 18:59 /dev/snd/seq
crw-rw---- 1 root audio 116, 33 Nov 17 18:59 /dev/snd/timer

/dev/snd/by-id:
total 0
drwxr-xr-x 2 root root 60 Nov 17 18:59 .
drwxr-xr-x 4 root root 160 Nov 17 18:59 ..
lrwxrwxrwx 1 root root 12 Nov 17 18:59 usb-Generic_TX-384Khz_Hifi_Type-C_Audio-00 -> ../controlC0

/dev/snd/by-path:
total 0
drwxr-xr-x 2 root root 60 Nov 17 18:59 .
drwxr-xr-x 4 root root 160 Nov 17 18:59 ..
lrwxrwxrwx 1 root root 12 Nov 17 18:59 pci-0000:00:14.0-usb-0:1:1.0 -> ../controlC0

!!Aplay/Arecord output
!!--------------------

APLAY

**** List of PLAYBACK Hardware Devices ****
card 0: Audio [TX-384Khz Hifi Type-C Audio], device 0: USB Audio [USB Audio]
Subdevices: 1/1
Subdevice #0: subdevice #0

ARECORD

**** List of CAPTURE Hardware Devices ****

!!Amixer output
!!-------------

!!-------Mixer controls for card Audio

Card hw:0 'Audio'/'Generic TX-384Khz Hifi Type-C Audio at usb-0000:00:14.0-1, high speed'
Mixer name : 'USB Mixer'
Components : 'USB0bda:4c07'
Controls : 4
Simple ctrls : 1
Simple mixer control 'PCM',0
Capabilities: pvolume pswitch pswitch-joined
Playback channels: Front Left - Front Right
Limits: Playback 0 - 175
Mono:
Front Left: Playback 121 [69%] [-20.25dB] [on]
Front Right: Playback 121 [69%] [-20.25dB] [on]

!!Alsactl output
!!--------------

--startcollapse--
state.Audio {
control.1 {
iface PCM
name 'Playback Channel Map'
value.0 0
value.1 0
comment {
access read
type INTEGER
count 2
range '0 - 36'
}
}
control.2 {
iface MIXER
name 'PCM Playback Switch'
value true
comment {
access 'read write'
type BOOLEAN
count 1
}
}
control.3 {
iface MIXER
name 'PCM Playback Volume'
value.0 121
value.1 121
comment {
access 'read write'
type INTEGER
count 2
range '0 - 175'
dbmin -6562
dbmax 0
dbvalue.0 -2025
dbvalue.1 -2025
}
}
control.4 {
iface CARD
name 'Clock Source 4 Validity'
value true
comment {
access read
type BOOLEAN
count 1
}
}
}
--endcollapse--

!!All Loaded Modules
!!------------------

!!ALSA/HDA dmesg
!!--------------

[ 0.771254] ACPI: Added _OSI(Linux-Dell-Video)
[ 0.771262] ACPI: Added _OSI(Linux-Lenovo-NV-HDMI-Audio)
[ 0.771271] ACPI: Added _OSI(Linux-HPI-Hybrid-Graphics)
--
[ 5.299506] usbhid: USB HID core driver
[ 5.300421] usbcore: registered new interface driver snd-usb-audio
[ 5.301484] IPVS: Registered protocols (TCP, UDP)
--
[ 5.396384] pstore: Using crash dump compression: deflate
[ 5.398338] ALSA device list:
[ 5.399328] No soundcards found.
[ 5.405607] Freeing unused kernel image (initmem) memory: 8868K

Generic TX-384Khz Hifi Type-C Audio at usb-0000:00:14.0-1, high speed : USB Audio

Playback:
Status: Stop
Interface 1
Altset 1
Format: S16_LE
Channels: 2
Endpoint: 0x04 (4 OUT) (ADAPTIVE)
Rates: 44100, 48000, 96000, 192000, 384000
Data packet interval: 125 us
Bits: 16
Channel map: FL FR
Interface 1
Altset 2
Format: S24_3LE
Channels: 2
Endpoint: 0x04 (4 OUT) (ADAPTIVE)
Rates: 44100, 48000, 96000, 192000, 384000
Data packet interval: 125 us
Bits: 24
Channel map: FL FR
Interface 1
Altset 3
Format: S32_LE
Channels: 2
Endpoint: 0x04 (4 OUT) (ADAPTIVE)
Rates: 44100, 48000, 96000, 192000, 384000
Data packet interval: 125 us
Bits: 32
Channel map: FL FR

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