March 2024 - Alsa-devel - mailman.alsa-project.org

aplay: fix S24_LE wav header
by GitHub pull_request - opened 25 Mar '24

25 Mar '24

alsa-project/alsa-utils pull request #260 was opened from psi-sue: S24_LE is 32 bits in width storing 24 bits of data and 8 bytes of padding So wav header needs to be 32 bits not 24 Request URL : https://github.com/alsa-project/alsa-utils/pull/260 Patch URL : https://github.com/alsa-project/alsa-utils/pull/260.patch Repository URL: https://github.com/alsa-project/alsa-utils

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[PATCH v4 0/2] ASoC: nau8325: Modify driver code and dtschema.
by Seven Lee 25 Mar '24

25 Mar '24

Modify properties description and use standard units in dtschema. Change: V1 -> V2: - Revise the driver description part for the C++ comment. - In the nau8325_clkdet_put function, modify the max variable to hard code. - Removed "Clock Detection" switch control. - modify the "ALC Enable" switch name. - Revise the dtschema for "nuvoton,dac-vref". V2 -> V3: - Properties use standard unit suffixes. - Modify the enum definition. - Driver code should be used dev_dbg(). V3 -> V4: - Properties use standard unit suffixes. - Modify the enum definition. Seven Lee (2): ASoC: dt-bindings: Added schema for "nuvoton,nau8325" ASoC: nau8325: new driver .../bindings/sound/nuvoton,nau8325.yaml | 90 ++ sound/soc/codecs/nau8325.c | 856 ++++++++++++++++++ sound/soc/codecs/nau8325.h | 391 ++++++++ 3 files changed, 1337 insertions(+) create mode 100644 Documentation/devicetree/bindings/sound/nuvoton,nau8325.yaml create mode 100644 sound/soc/codecs/nau8325.c create mode 100644 sound/soc/codecs/nau8325.h -- 2.25.1

4 6

[PATCH v3 00/32] spi: get rid of some legacy macros
by Uwe Kleine-König 25 Mar '24

25 Mar '24

Changes since v2 (https://lore.kernel.org/linux-spi/cover.1705944943.git.u.kleine-koenig@peng…): - Drop patch "mtd: rawnand: fsl_elbc: Let .probe retry if local bus is missing" which doesn't belong into this series. - Fix a build failure noticed by the kernel build bot in drivers/spi/spi-au1550.c. (I failed to catch this because this driver is mips only, but not enabled in a mips allmodconfig. That's a bit unfortunate, but not easily fixable.) - Add the Reviewed-by: and Acked-by: tags I received for v2. Mark already announced for v2 that he is willing to apply the whole series to his spi tree. Assuming no other show stoper are found in this v3, I assume that's the plan still for this series now. Thanks Uwe Uwe Kleine-König (32): fpga: ice40-spi: Follow renaming of SPI "master" to "controller" ieee802154: ca8210: Follow renaming of SPI "master" to "controller" iio: adc: ad_sigma_delta: Follow renaming of SPI "master" to "controller" Input: pxspad - follow renaming of SPI "master" to "controller" Input: synaptics-rmi4 - follow renaming of SPI "master" to "controller" media: mgb4: Follow renaming of SPI "master" to "controller" media: netup_unidvb: Follow renaming of SPI "master" to "controller" media: usb/msi2500: Follow renaming of SPI "master" to "controller" media: v4l2-subdev: Follow renaming of SPI "master" to "controller" misc: gehc-achc: Follow renaming of SPI "master" to "controller" mmc: mmc_spi: Follow renaming of SPI "master" to "controller" mtd: dataflash: Follow renaming of SPI "master" to "controller" net: ks8851: Follow renaming of SPI "master" to "controller" net: vertexcom: mse102x: Follow renaming of SPI "master" to "controller" platform/chrome: cros_ec_spi: Follow renaming of SPI "master" to "controller" spi: bitbang: Follow renaming of SPI "master" to "controller" spi: cadence-quadspi: Don't emit error message on allocation error spi: cadence-quadspi: Follow renaming of SPI "master" to "controller" spi: cavium: Follow renaming of SPI "master" to "controller" spi: geni-qcom: Follow renaming of SPI "master" to "controller" spi: loopback-test: Follow renaming of SPI "master" to "controller" spi: slave-mt27xx: Follow renaming of SPI "master" to "controller" spi: spidev: Follow renaming of SPI "master" to "controller" staging: fbtft: Follow renaming of SPI "master" to "controller" staging: greybus: spi: Follow renaming of SPI "master" to "controller" tpm_tis_spi: Follow renaming of SPI "master" to "controller" usb: gadget: max3420_udc: Follow renaming of SPI "master" to "controller" video: fbdev: mmp: Follow renaming of SPI "master" to "controller" wifi: libertas: Follow renaming of SPI "master" to "controller" spi: fsl-lib: Follow renaming of SPI "master" to "controller" spi: Drop compat layer from renaming "master" to "controller" Documentation: spi: Update documentation for renaming "master" to "controller" .../driver-api/driver-model/devres.rst | 2 +- Documentation/spi/spi-summary.rst | 74 +++++++++---------- drivers/char/tpm/tpm_tis_spi_main.c | 4 +- drivers/fpga/ice40-spi.c | 4 +- drivers/iio/adc/ad_sigma_delta.c | 14 ++-- drivers/input/joystick/psxpad-spi.c | 4 +- drivers/input/rmi4/rmi_spi.c | 2 +- drivers/media/pci/mgb4/mgb4_core.c | 14 ++-- .../media/pci/netup_unidvb/netup_unidvb_spi.c | 48 ++++++------ drivers/media/usb/msi2500/msi2500.c | 38 +++++----- drivers/media/v4l2-core/v4l2-spi.c | 4 +- drivers/misc/gehc-achc.c | 8 +- drivers/mmc/host/mmc_spi.c | 6 +- drivers/mtd/devices/mtd_dataflash.c | 2 +- drivers/net/ethernet/micrel/ks8851_spi.c | 4 +- drivers/net/ethernet/vertexcom/mse102x.c | 2 +- drivers/net/ieee802154/ca8210.c | 2 +- .../net/wireless/marvell/libertas/if_spi.c | 2 +- drivers/platform/chrome/cros_ec_spi.c | 8 +- drivers/spi/spi-ath79.c | 4 +- drivers/spi/spi-au1550.c | 2 +- drivers/spi/spi-bitbang.c | 64 ++++++++-------- drivers/spi/spi-butterfly.c | 6 +- drivers/spi/spi-cadence-quadspi.c | 7 +- drivers/spi/spi-cavium.c | 6 +- drivers/spi/spi-cavium.h | 2 +- drivers/spi/spi-davinci.c | 6 +- drivers/spi/spi-fsl-lib.c | 14 ++-- drivers/spi/spi-geni-qcom.c | 2 +- drivers/spi/spi-gpio.c | 2 +- drivers/spi/spi-lm70llp.c | 6 +- drivers/spi/spi-loopback-test.c | 4 +- drivers/spi/spi-oc-tiny.c | 6 +- drivers/spi/spi-omap-uwire.c | 4 +- drivers/spi/spi-sh-sci.c | 10 +-- drivers/spi/spi-slave-mt27xx.c | 2 +- drivers/spi/spi-xilinx.c | 4 +- drivers/spi/spi-xtensa-xtfpga.c | 2 +- drivers/spi/spi.c | 2 +- drivers/spi/spidev.c | 2 +- drivers/staging/fbtft/fbtft-core.c | 4 +- drivers/staging/greybus/spilib.c | 66 ++++++++--------- drivers/usb/gadget/udc/max3420_udc.c | 2 +- drivers/video/fbdev/mmp/hw/mmp_spi.c | 26 +++---- include/linux/spi/spi.h | 20 +---- include/linux/spi/spi_bitbang.h | 2 +- include/media/v4l2-common.h | 6 +- 47 files changed, 253 insertions(+), 272 deletions(-) base-commit: b9b98f594b6f4c0b0fb2da4493453aef183bca4b -- 2.43.0

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No sound "dummy output" - snd_hda_intel on Pop OS 22.04 LTS on Acer chromebook plus 514 (Google Markath rev 3)
by GitHub issues - edited 23 Mar '24

23 Mar '24

alsa-project/alsa-lib issue #391 was edited from judicandus: Installed a fresh Pop OS installation on an Acer Chromebook Plus 514, but audio is not working with just one interface available "Dummy Output". Alsa-info attached: [alsa-info.txt](https://github.com/alsa-project/alsa-lib/files/14733718/alsa… **1) What I already tried to do** All the instructions in: https://support.system76.com/articles/audio/ , specifically: i. reinstalling pipewire and deleting configurations: systemctl --user restart wireplumber pipewire pipewire-pulse rm -r ~/.config/pulse/* rm -r ~/.local/state/wireplumber/* ii. reinstalling apps sudo apt install --reinstall alsa-base alsa-utils linux-sound-base libasound2 sudo apt reinstall libpipewire-0.3-0 libpipewire-0.3-common libpipewire-0.3-modules pipewire pipewire-audio-client-libraries pipewire-bin pipewire-pulse sudo alsa force-reload iii. snh_hda_intel specific bug fix echo "options snd-hda-intel dmic_detect=0" | sudo tee -a /etc/modprobe.d/alsa-base.conf echo "blacklist snd_soc_skl" | sudo tee -a /etc/modprobe.d/blacklist.conf (reboot) iv. installing SOF driver according to https://github.com/thesofproject/sof-bin from the tarball Nothing worked. **2) Output** ``` aplay -l **** Liste des périphériques matériels PLAYBACK **** carte 0 : Generic [HD-Audio Generic], périphérique 3 : HDMI 0 [HDMI 0] Sous-périphériques : 1/1 Sous-périphérique #0 : subdevice #0 carte 0 : Generic [HD-Audio Generic], périphérique 7 : HDMI 1 [HDMI 1] Sous-périphériques : 1/1 Sous-périphérique #0 : subdevice #0 carte 0 : Generic [HD-Audio Generic], périphérique 8 : HDMI 2 [HDMI 2] Sous-périphériques : 1/1 Sous-périphérique #0 : subdevice #0 carte 0 : Generic [HD-Audio Generic], périphérique 9 : HDMI 3 [HDMI 3] Sous-périphériques : 1/1 Sous-périphérique #0 : subdevice #0 ``` ``` arecord -l **** Liste des périphériques matériels CAPTURE **** ``` ``` lsmod | grep snd_hda_intel snd_hda_intel 61440 1 snd_intel_dspcfg 36864 2 snd_hda_intel,snd_sof snd_hda_codec 221184 2 snd_hda_codec_hdmi,snd_hda_intel snd_hda_core 151552 3 snd_hda_codec_hdmi,snd_hda_intel,snd_hda_codec snd_pcm 196608 14 snd_sof_amd_acp,snd_hda_codec_hdmi,snd_pci_acp6x,snd_hda_intel,snd_hda_codec,snd_sof,snd_compress,snd_soc_core,snd_sof_utils,snd_hda_core,snd_soc_rt1019,snd_pci_ps,snd_soc_rt5682s,snd_pcm_dmaengine snd 147456 16 snd_seq,snd_seq_device,snd_hda_codec_hdmi,snd_hwdep,snd_hda_intel,snd_hda_codec,snd_sof,snd_timer,snd_compress,snd_soc_core,snd_pcm,snd_rawmidi ``` ``` lspci -nnk | grep -A2 Audio 04:00.1 Audio device [0403]: Advanced Micro Devices, Inc. [AMD/ATI] Device [1002:1640] Subsystem: Advanced Micro Devices, Inc. [AMD/ATI] Device [1002:1640] Kernel driver in use: snd_hda_intel -- 04:00.5 Multimedia controller [0480]: Advanced Micro Devices, Inc. [AMD] Raven/Raven2/FireFlight/Renoir Audio Processor [1022:15e2] (rev 6f) DeviceName: Multimedia controller Subsystem: Advanced Micro Devices, Inc. [AMD] Raven/Raven2/FireFlight/Renoir Audio Processor [1022:15e2] Kernel driver in use: snd_sof_amd_rembrandt Kernel modules: snd_pci_acp3x, snd_rn_pci_acp3x, snd_pci_acp5x, snd_pci_acp6x, snd_acp_pci, snd_rpl_pci_acp6x, snd_pci_ps, snd_sof_amd_renoir, snd_sof_amd_rembrandt, snd_sof_amd_vangogh ``` ``` cat /proc/asound/cards 0 [Generic ]: HDA-Intel - HD-Audio Generic HD-Audio Generic at 0xd06c0000 irq 77 ``` ``` sudo dmesg | grep -i -e audio -e error -e fail [ 0.282615] ACPI: _OSC evaluation for CPUs failed, trying _PDC [ 0.629902] ACPI Error: Could not enable SleepButton event (20230628/evxfevnt-182) [ 6.100083] RAS: Correctable Errors collector initialized. [ 6.327488] hub 6-0:1.0: config failed, hub doesn't have any ports! (err -19) [ 8.787783] system76_acpi: module verification failed: signature and/or required key missing - tainting kernel [ 10.353860] snd_hda_intel 0000:04:00.1: bound 0000:04:00.0 (ops amdgpu_dm_audio_component_bind_ops [amdgpu]) [ 10.454926] input: HD-Audio Generic HDMI/DP,pcm=3 as /devices/pci0000:00/0000:00:08.1/0000:04:00.1/sound/card0/input10 [ 10.461777] input: HD-Audio Generic HDMI/DP,pcm=7 as /devices/pci0000:00/0000:00:08.1/0000:04:00.1/sound/card0/input11 [ 10.491432] input: HD-Audio Generic HDMI/DP,pcm=8 as /devices/pci0000:00/0000:00:08.1/0000:04:00.1/sound/card0/input12 [ 10.518137] input: HD-Audio Generic HDMI/DP,pcm=9 as /devices/pci0000:00/0000:00:08.1/0000:04:00.1/sound/card0/input13 [ 10.659161] snd_sof_amd_rembrandt 0000:04:00.5: Direct firmware load for amd/sof/community/sof-rmb.ri failed with error -2 [ 10.659196] snd_sof_amd_rembrandt 0000:04:00.5: error: sof firmware file is missing, you might need to [ 10.659208] snd_sof_amd_rembrandt 0000:04:00.5: error: failed to load DSP firmware -2 [ 10.659441] snd_sof_amd_rembrandt 0000:04:00.5: error: sof_probe_work failed err: -2 ``` ``` systemctl --user status pipewire pipewire.service - PipeWire Multimedia Service Loaded: loaded (/usr/lib/systemd/user/pipewire.service; enabled; vendor preset: enabled) Active: active (running) since Sat 2024-03-23 22:15:36 CET; 58min ago TriggeredBy: ● pipewire.socket Main PID: 1320 (pipewire) Tasks: 3 (limit: 9239) Memory: 6.6M CPU: 335ms CGroup: /user.slice/user-1000.slice/user(a)1000.service/session.slice/pipewire.service └─1320 /usr/bin/pipewire mars 23 22:15:36 pop-os systemd[1310]: Started PipeWire Multimedia Service. mars 23 22:15:36 pop-os pipewire[1320]: mod.jackdbus-detect: Failed to receive jackdbus reply: org.freedesktop.DBus.Error.ServiceUnknown: The name is not activatable ``` I am not sure if this is a bug but since I tried all solutions I could find on the internet, I thought I might try my luck here. Thank you beforehand for any assistance or insight. Issue URL : https://github.com/alsa-project/alsa-lib/issues/391 Repository URL: https://github.com/alsa-project/alsa-lib

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No sound "dummy output" - snd_hda_intel on Pop OS 22.04 LTS on Acer chromebook plus 514 (Google Markath rev 3)
by GitHub issues - opened 23 Mar '24

23 Mar '24

alsa-project/alsa-lib issue #391 was opened from judicandus: Installed a fresh Pop OS installation on an Acer Chromebook Plus 514, but audio is not working with just one interface available "Dummy Output". Alsa-info attached: [alsa-info.txt](https://github.com/alsa-project/alsa-lib/files/14733718/alsa… **1) What I already tried to do** All the instructions in: https://support.system76.com/articles/audio/ , specifically: i. reinstalling pipewire and deleting configurations: systemctl --user restart wireplumber pipewire pipewire-pulse rm -r ~/.config/pulse/* rm -r ~/.local/state/wireplumber/* ii. reinstalling apps sudo apt install --reinstall alsa-base alsa-utils linux-sound-base libasound2 sudo apt reinstall libpipewire-0.3-0 libpipewire-0.3-common libpipewire-0.3-modules pipewire pipewire-audio-client-libraries pipewire-bin pipewire-pulse sudo alsa force-reload iii. snh_hda_intel specific bug fix echo "options snd-hda-intel dmic_detect=0" | sudo tee -a /etc/modprobe.d/alsa-base.conf echo "blacklist snd_soc_skl" | sudo tee -a /etc/modprobe.d/blacklist.conf (reboot) iv. installing SOF driver according to https://github.com/thesofproject/sof-bin from the tarball Nothing worked. **2) Output** aplay -l **** Liste des périphériques matériels PLAYBACK **** carte 0 : Generic [HD-Audio Generic], périphérique 3 : HDMI 0 [HDMI 0] Sous-périphériques : 1/1 Sous-périphérique #0 : subdevice #0 carte 0 : Generic [HD-Audio Generic], périphérique 7 : HDMI 1 [HDMI 1] Sous-périphériques : 1/1 Sous-périphérique #0 : subdevice #0 carte 0 : Generic [HD-Audio Generic], périphérique 8 : HDMI 2 [HDMI 2] Sous-périphériques : 1/1 Sous-périphérique #0 : subdevice #0 carte 0 : Generic [HD-Audio Generic], périphérique 9 : HDMI 3 [HDMI 3] Sous-périphériques : 1/1 Sous-périphérique #0 : subdevice #0 arecord -l **** Liste des périphériques matériels CAPTURE **** lsmod | grep snd_hda_intel snd_hda_intel 61440 1 snd_intel_dspcfg 36864 2 snd_hda_intel,snd_sof snd_hda_codec 221184 2 snd_hda_codec_hdmi,snd_hda_intel snd_hda_core 151552 3 snd_hda_codec_hdmi,snd_hda_intel,snd_hda_codec snd_pcm 196608 14 snd_sof_amd_acp,snd_hda_codec_hdmi,snd_pci_acp6x,snd_hda_intel,snd_hda_codec,snd_sof,snd_compress,snd_soc_core,snd_sof_utils,snd_hda_core,snd_soc_rt1019,snd_pci_ps,snd_soc_rt5682s,snd_pcm_dmaengine snd 147456 16 snd_seq,snd_seq_device,snd_hda_codec_hdmi,snd_hwdep,snd_hda_intel,snd_hda_codec,snd_sof,snd_timer,snd_compress,snd_soc_core,snd_pcm,snd_rawmidi lspci -nnk | grep -A2 Audio 04:00.1 Audio device [0403]: Advanced Micro Devices, Inc. [AMD/ATI] Device [1002:1640] Subsystem: Advanced Micro Devices, Inc. [AMD/ATI] Device [1002:1640] Kernel driver in use: snd_hda_intel -- 04:00.5 Multimedia controller [0480]: Advanced Micro Devices, Inc. [AMD] Raven/Raven2/FireFlight/Renoir Audio Processor [1022:15e2] (rev 6f) DeviceName: Multimedia controller Subsystem: Advanced Micro Devices, Inc. [AMD] Raven/Raven2/FireFlight/Renoir Audio Processor [1022:15e2] Kernel driver in use: snd_sof_amd_rembrandt Kernel modules: snd_pci_acp3x, snd_rn_pci_acp3x, snd_pci_acp5x, snd_pci_acp6x, snd_acp_pci, snd_rpl_pci_acp6x, snd_pci_ps, snd_sof_amd_renoir, snd_sof_amd_rembrandt, snd_sof_amd_vangogh cat /proc/asound/cards 0 [Generic ]: HDA-Intel - HD-Audio Generic HD-Audio Generic at 0xd06c0000 irq 77 sudo dmesg | grep -i -e audio -e error -e fail [ 0.282615] ACPI: _OSC evaluation for CPUs failed, trying _PDC [ 0.629902] ACPI Error: Could not enable SleepButton event (20230628/evxfevnt-182) [ 6.100083] RAS: Correctable Errors collector initialized. [ 6.327488] hub 6-0:1.0: config failed, hub doesn't have any ports! (err -19) [ 8.787783] system76_acpi: module verification failed: signature and/or required key missing - tainting kernel [ 10.353860] snd_hda_intel 0000:04:00.1: bound 0000:04:00.0 (ops amdgpu_dm_audio_component_bind_ops [amdgpu]) [ 10.454926] input: HD-Audio Generic HDMI/DP,pcm=3 as /devices/pci0000:00/0000:00:08.1/0000:04:00.1/sound/card0/input10 [ 10.461777] input: HD-Audio Generic HDMI/DP,pcm=7 as /devices/pci0000:00/0000:00:08.1/0000:04:00.1/sound/card0/input11 [ 10.491432] input: HD-Audio Generic HDMI/DP,pcm=8 as /devices/pci0000:00/0000:00:08.1/0000:04:00.1/sound/card0/input12 [ 10.518137] input: HD-Audio Generic HDMI/DP,pcm=9 as /devices/pci0000:00/0000:00:08.1/0000:04:00.1/sound/card0/input13 [ 10.659161] snd_sof_amd_rembrandt 0000:04:00.5: Direct firmware load for amd/sof/community/sof-rmb.ri failed with error -2 [ 10.659196] snd_sof_amd_rembrandt 0000:04:00.5: error: sof firmware file is missing, you might need to [ 10.659208] snd_sof_amd_rembrandt 0000:04:00.5: error: failed to load DSP firmware -2 [ 10.659441] snd_sof_amd_rembrandt 0000:04:00.5: error: sof_probe_work failed err: -2 systemctl --user status pipewire pipewire.service - PipeWire Multimedia Service Loaded: loaded (/usr/lib/systemd/user/pipewire.service; enabled; vendor preset: enabled) Active: active (running) since Sat 2024-03-23 22:15:36 CET; 58min ago TriggeredBy: ● pipewire.socket Main PID: 1320 (pipewire) Tasks: 3 (limit: 9239) Memory: 6.6M CPU: 335ms CGroup: /user.slice/user-1000.slice/user(a)1000.service/session.slice/pipewire.service └─1320 /usr/bin/pipewire mars 23 22:15:36 pop-os systemd[1310]: Started PipeWire Multimedia Service. mars 23 22:15:36 pop-os pipewire[1320]: mod.jackdbus-detect: Failed to receive jackdbus reply: org.freedesktop.DBus.Error.ServiceUnknown: The name is not activatable I am not sure if this is a bug but since I tried all solutions I could find on the internet, I thought I might try my luck here. Thank you beforehand for any assistance or insight. Issue URL : https://github.com/alsa-project/alsa-lib/issues/391 Repository URL: https://github.com/alsa-project/alsa-lib

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[PATCH] amdtp-stream: Checking a variable for zero before dividing
by Andrey Shumilin 23 Mar '24

23 Mar '24

The step variable is initialized to zero. It changes in the loop, but if it doesn’t change it will remain zero. The patch added a variable check. Found by Linux Verification Center (linuxtesting.org) with SVACE. Signed-off-by: Andrey Shumilin <shum.sdl(a)nppct.ru> --- sound/firewire/amdtp-stream.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/sound/firewire/amdtp-stream.c b/sound/firewire/amdtp-stream.c index c9f153f85ae6..b61aa30f43a9 100644 --- a/sound/firewire/amdtp-stream.c +++ b/sound/firewire/amdtp-stream.c @@ -168,7 +168,8 @@ static int apply_constraint_to_size(struct snd_pcm_hw_params *params, if (snd_interval_test(r, amdtp_rate_table[i])) step = max(step, amdtp_syt_intervals[i]); } - + if (step == 0) + return -EINVAL; t.min = roundup(s->min, step); t.max = rounddown(s->max, step); t.integer = 1; -- 2.30.2

1 0

Variable mclk-fs in ASoC audio cards?
by John Watts 22 Mar '24

22 Mar '24

Greetings fellow ALSAers :) Over the past month I have been working on a driver for the 8-channel TDM CS5368 audio codec. However I've run in to an interesting snag that seems to be an open problem. Let me explain. The audio codec generally runs at 8 channels of 32-bit data, so: MCLK = BCLK = LRCK * 256 However it is possible to read 4 or 2 channels instead: MCLK = BCLK = LRCK * 128 MCLK = BCLK = LRCK * 64 This trade-off allows avoiding high frequency clocking at the expense of a reduced channel count. From what I current see the way to indicate the multiplier here is using mclk-fs in the device tree, but this would mean effectively fixing the channel count in the device tree. I have searched around found someone has suggested mapping mclk-fs to rates here: https://lore.kernel.org/all/CAEnQRZDpJu27_pB=-ZYQjsNPC8eA4-Ur-36niT2hCosMWt… This functionality is somewhat adjacent to it, but I was wondering if it would be better to somehow factor dai-tdm-slot-* in to mclk-fs calculation. Perhaps mclk-fs could be divided by dai-tdm-slot-num then multiplied by slots? Has anyone hit this problem before? How did you solve it? John.

1 0

[PATCH] [RESEND] ASoC: amd: simplify soundwire dependencies for
by Vijendar Mukunda 22 Mar '24

22 Mar '24

The CONFIG_SOUNDWIRE_AMD is a user-visible option, it should be never selected by another driver. So replace the extra complexity with a normal Kconfig dependency in SND_SOC_AMD_SOUNDWIRE. Signed-off-by: Vijendar Mukunda <Vijendar.Mukunda(a)amd.com> --- sound/soc/amd/Kconfig | 5 ++--- 1 file changed, 2 insertions(+), 3 deletions(-) diff --git a/sound/soc/amd/Kconfig b/sound/soc/amd/Kconfig index fa74635cee08..3508f5a96b75 100644 --- a/sound/soc/amd/Kconfig +++ b/sound/soc/amd/Kconfig @@ -134,15 +134,14 @@ config SND_SOC_AMD_RPL_ACP6x config SND_SOC_AMD_SOUNDWIRE_LINK_BASELINE tristate - select SOUNDWIRE_AMD if SND_SOC_AMD_SOUNDWIRE != n select SND_AMD_SOUNDWIRE_ACPI if ACPI config SND_SOC_AMD_SOUNDWIRE tristate "Support for SoundWire based AMD platforms" default SND_SOC_AMD_SOUNDWIRE_LINK_BASELINE depends on SND_SOC_AMD_SOUNDWIRE_LINK_BASELINE - depends on ACPI && SOUNDWIRE - depends on !(SOUNDWIRE=m && SND_SOC_AMD_SOUNDWIRE_LINK_BASELINE=y) + depends on ACPI + depends on SOUNDWIRE_AMD help This adds support for SoundWire for AMD platforms. Say Y if you want to enable SoundWire links with SOF. -- 2.34.1

2 1

[GIT PULL] ASoC fixes for v6.9-merge-window
by Mark Brown 21 Mar '24

21 Mar '24

The following changes since commit e8f897f4afef0031fe618a8e94127a0934896aba: Linux 6.8 (2024-03-10 13:38:09 -0700) are available in the Git repository at: https://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound.git tags/asoc-fix-v6.9-merge-window for you to fetch changes up to 9a8b202f8cb7ebebc71f1f2a353a21c76d3063a8: ASoC: soc-compress: Fix and add DPCM locking (2024-03-18 14:41:51 +0000) ---------------------------------------------------------------- ASoC: Fixes for v6.9 A bunch of fixes that came in during the merge window, probably the most substantial thing is the DPCM locking fix for compressed audio which has been lurking for a while. ---------------------------------------------------------------- Chancel Liu (1): ASoC: soc-core.c: Skip dummy codec when adding platforms Cristian Ciocaltea (2): ASoC: SOF: amd: Move signed_fw_image to struct acp_quirk_entry ASoC: SOF: amd: Skip IRAM/DRAM size modification for Steam Deck OLED Jiawei Wang (2): ASoC: amd: yc: Revert "Fix non-functional mic on Lenovo 21J2" ASoC: amd: yc: Revert "add new YC platform variant (0x63) support" Luca Ceresoli (1): ASoC: rockchip: i2s-tdm: Fix inaccurate sampling rates M Cooley (1): ASoC: amd: yc: Fix non-functional mic on ASUS M7600RE Mark Brown (3): ASoC: Merge up release Add support for the internal RK3308 audio codec ASoC: SOF: amd: Skip IRAM/DRAM size modification Rob Herring (1): ASoC: dt-bindings: cirrus,cs42l43: Fix 'gpio-ranges' schema Shalini Manjunatha (1): ASoC: soc-compress: Fix and add DPCM locking Uwe Kleine-König (1): ASoC: tlv320adc3xxx: Don't strip remove function when driver is builtin .../ABI/testing/sysfs-bus-pci-devices-avs | 8 + .../bindings/sound/atmel,asoc-wm8904.yaml | 84 + .../bindings/sound/atmel,sam9x5-wm8731-audio.yaml | 76 + .../bindings/sound/atmel,sama5d2-classd.yaml | 7 +- .../bindings/sound/atmel-sam9x5-wm8731-audio.txt | 35 - .../devicetree/bindings/sound/atmel-wm8904.txt | 55 - .../bindings/sound/audio-graph-port.yaml | 2 +- .../devicetree/bindings/sound/cirrus,cs35l45.yaml | 3 + .../devicetree/bindings/sound/cirrus,cs42l43.yaml | 11 +- .../devicetree/bindings/sound/everest,es8326.yaml | 8 +- .../devicetree/bindings/sound/fsl,asrc.txt | 80 - .../devicetree/bindings/sound/fsl,easrc.yaml | 4 +- .../devicetree/bindings/sound/fsl,imx-asrc.yaml | 162 + .../devicetree/bindings/sound/fsl,micfil.yaml | 14 +- .../devicetree/bindings/sound/fsl,sai.yaml | 6 + .../bindings/sound/infineon,peb2466.yaml | 2 +- .../bindings/sound/microchip,sama7g5-i2smcc.yaml | 11 +- .../devicetree/bindings/sound/qcom,sm8250.yaml | 2 +- .../devicetree/bindings/sound/qcom,wcd938x.yaml | 81 +- .../bindings/sound/qcom,wcd939x-sdw.yaml | 69 + .../devicetree/bindings/sound/qcom,wcd939x.yaml | 96 + .../bindings/sound/qcom,wcd93xx-common.yaml | 95 + .../devicetree/bindings/sound/qcom,wsa8840.yaml | 11 +- .../devicetree/bindings/sound/realtek,rt1015.yaml | 41 + Documentation/devicetree/bindings/sound/rt1015.txt | 23 - .../devicetree/bindings/sound/samsung,tm2.yaml | 7 +- drivers/firmware/cirrus/cs_dsp.c | 7 +- drivers/soundwire/Makefile | 2 +- drivers/soundwire/amd_init.c | 235 ++ drivers/soundwire/amd_init.h | 13 + drivers/soundwire/amd_manager.c | 47 +- drivers/soundwire/amd_manager.h | 16 +- drivers/soundwire/dmi-quirks.c | 8 + include/linux/firmware/cirrus/cs_dsp.h | 1 - include/linux/soundwire/sdw_amd.h | 83 +- include/linux/spi/spi.h | 2 - include/sound/cs-amp-lib.h | 66 + include/sound/cs35l56.h | 10 + include/sound/cs42l42.h | 5 +- include/sound/hda-mlink.h | 2 +- include/sound/hda_register.h | 2 + include/sound/soc.h | 4 +- include/sound/sof/dai-amd.h | 7 + include/sound/sof/dai.h | 2 + include/sound/tas2781.h | 1 - include/trace/events/asoc.h | 45 +- include/uapi/sound/intel/avs/tokens.h | 9 + include/uapi/sound/sof/tokens.h | 4 + sound/pci/hda/Kconfig | 2 + sound/pci/hda/cs35l56_hda.c | 39 +- sound/pci/hda/tas2781_hda_i2c.c | 12 - sound/soc/amd/Kconfig | 17 + sound/soc/amd/Makefile | 2 +- sound/soc/amd/acp/Kconfig | 7 + sound/soc/amd/acp/Makefile | 2 + sound/soc/amd/acp/acp-mach-common.c | 6 +- sound/soc/amd/acp/acp-sof-mach.c | 26 +- sound/soc/amd/acp/amd-sdw-acpi.c | 62 + sound/soc/amd/ps/Makefile | 2 +- sound/soc/amd/ps/acp63.h | 91 +- sound/soc/amd/ps/pci-ps.c | 565 +-- sound/soc/amd/ps/ps-mach.c | 2 +- sound/soc/amd/ps/ps-pdm-dma.c | 2 +- sound/soc/amd/ps/ps-sdw-dma.c | 2 +- sound/soc/amd/yc/acp6x-mach.c | 14 +- sound/soc/amd/yc/pci-acp6x.c | 1 - sound/soc/atmel/mikroe-proto.c | 8 +- sound/soc/codecs/Kconfig | 55 +- sound/soc/codecs/Makefile | 13 + sound/soc/codecs/cs-amp-lib-test.c | 709 ++++ sound/soc/codecs/cs-amp-lib.c | 277 ++ sound/soc/codecs/cs35l56-sdw.c | 20 + sound/soc/codecs/cs35l56-shared.c | 84 + sound/soc/codecs/cs35l56.c | 44 +- sound/soc/codecs/cs42l42.c | 1 - sound/soc/codecs/cs42l43-jack.c | 27 +- sound/soc/codecs/cs42l43-sdw.c | 1 + sound/soc/codecs/cs42l43.c | 82 +- sound/soc/codecs/cs42l43.h | 21 +- sound/soc/codecs/da7213.c | 12 +- sound/soc/codecs/es8326.c | 110 +- sound/soc/codecs/es8326.h | 5 +- sound/soc/codecs/framer-codec.c | 413 +++ sound/soc/codecs/lpass-macro-common.h | 7 + sound/soc/codecs/lpass-tx-macro.c | 693 +++- sound/soc/codecs/lpass-va-macro.c | 57 + sound/soc/codecs/max98363.c | 2 +- sound/soc/codecs/max98373-sdw.c | 2 +- sound/soc/codecs/nau8540.c | 116 +- sound/soc/codecs/nau8540.h | 13 +- sound/soc/codecs/nau8825.c | 12 +- sound/soc/codecs/rt1017-sdca-sdw.c | 2 +- sound/soc/codecs/rt274.c | 2 +- sound/soc/codecs/rt286.c | 2 +- sound/soc/codecs/rt298.c | 2 +- sound/soc/codecs/rt5514-spi.c | 2 +- sound/soc/codecs/rt5514.c | 9 +- sound/soc/codecs/rt5616.c | 9 +- sound/soc/codecs/rt5640.c | 9 +- sound/soc/codecs/rt5645.c | 2 +- sound/soc/codecs/rt5651.c | 2 +- sound/soc/codecs/rt5659.c | 2 +- sound/soc/codecs/rt5660.c | 9 +- sound/soc/codecs/rt5663.c | 2 +- sound/soc/codecs/rt5665.c | 2 +- sound/soc/codecs/rt5668.c | 2 +- sound/soc/codecs/rt5682-i2c.c | 2 +- sound/soc/codecs/rt5682s.c | 2 +- sound/soc/codecs/rt712-sdca-dmic.c | 2 +- sound/soc/codecs/rt712-sdca-sdw.c | 2 +- sound/soc/codecs/rt722-sdca-sdw.c | 2 +- sound/soc/codecs/tas2781-comlib.c | 1 - sound/soc/codecs/tas2781-fmwlib.c | 2 +- sound/soc/codecs/tlv320adc3xxx.c | 4 +- sound/soc/codecs/wcd-clsh-v2.h | 1 + sound/soc/codecs/wcd-mbhc-v2.c | 95 +- sound/soc/codecs/wcd-mbhc-v2.h | 3 + sound/soc/codecs/wcd939x-sdw.c | 1551 ++++++++ sound/soc/codecs/wcd939x.c | 3686 ++++++++++++++++++++ sound/soc/codecs/wcd939x.h | 989 ++++++ sound/soc/codecs/wm_adsp.c | 27 +- sound/soc/codecs/wm_adsp.h | 2 + sound/soc/codecs/wsa884x.c | 53 +- sound/soc/fsl/eukrea-tlv320.c | 8 +- sound/soc/fsl/fsl_sai.c | 13 + sound/soc/fsl/p1022_rdk.c | 33 +- sound/soc/intel/atom/sst/sst_ipc.c | 3 +- sound/soc/intel/avs/Makefile | 5 +- sound/soc/intel/avs/apl.c | 58 +- sound/soc/intel/avs/avs.h | 70 +- sound/soc/intel/avs/board_selection.c | 85 + sound/soc/intel/avs/cnl.c | 61 + sound/soc/intel/avs/core.c | 161 +- sound/soc/intel/avs/icl.c | 197 ++ sound/soc/intel/avs/ipc.c | 66 +- sound/soc/intel/avs/loader.c | 2 +- sound/soc/intel/avs/messages.c | 1 + sound/soc/intel/avs/messages.h | 38 +- sound/soc/intel/avs/path.c | 33 + sound/soc/intel/avs/pcm.c | 77 +- sound/soc/intel/avs/registers.h | 21 +- sound/soc/intel/avs/skl.c | 59 +- sound/soc/intel/avs/sysfs.c | 35 + sound/soc/intel/avs/tgl.c | 54 + sound/soc/intel/avs/topology.c | 164 +- sound/soc/intel/avs/topology.h | 13 + sound/soc/intel/boards/Kconfig | 1 + sound/soc/intel/boards/sof_board_helpers.c | 249 +- sound/soc/intel/boards/sof_board_helpers.h | 29 + sound/soc/intel/boards/sof_cs42l42.c | 236 +- sound/soc/intel/boards/sof_rt5682.c | 151 +- sound/soc/intel/boards/sof_sdw.c | 106 +- sound/soc/intel/boards/sof_sdw_common.h | 82 +- sound/soc/intel/boards/sof_sdw_cs42l42.c | 35 +- sound/soc/intel/boards/sof_sdw_cs42l43.c | 25 +- sound/soc/intel/boards/sof_sdw_cs_amp.c | 3 +- sound/soc/intel/boards/sof_sdw_maxim.c | 4 +- sound/soc/intel/boards/sof_sdw_rt5682.c | 35 +- sound/soc/intel/boards/sof_sdw_rt700.c | 35 +- sound/soc/intel/boards/sof_sdw_rt711.c | 19 +- sound/soc/intel/boards/sof_sdw_rt712_sdca.c | 39 +- sound/soc/intel/boards/sof_sdw_rt715.c | 12 +- sound/soc/intel/boards/sof_sdw_rt715_sdca.c | 12 +- sound/soc/intel/boards/sof_sdw_rt_amp.c | 53 +- .../soc/intel/boards/sof_sdw_rt_sdca_jack_common.c | 19 +- sound/soc/intel/boards/sof_ssp_common.h | 8 + sound/soc/intel/catpt/dsp.c | 4 +- sound/soc/intel/common/soc-acpi-intel-adl-match.c | 12 +- sound/soc/intel/common/soc-acpi-intel-jsl-match.c | 10 +- sound/soc/intel/common/soc-acpi-intel-lnl-match.c | 102 + sound/soc/intel/common/soc-acpi-intel-mtl-match.c | 61 +- sound/soc/intel/common/soc-acpi-intel-rpl-match.c | 4 +- sound/soc/intel/common/soc-acpi-intel-tgl-match.c | 6 +- sound/soc/meson/aiu.c | 19 +- sound/soc/meson/aiu.h | 1 - sound/soc/meson/axg-fifo.c | 25 +- sound/soc/meson/axg-fifo.h | 14 +- sound/soc/meson/axg-frddr.c | 13 +- sound/soc/meson/axg-spdifin.c | 6 +- sound/soc/meson/axg-tdm-interface.c | 31 +- sound/soc/meson/axg-toddr.c | 30 +- sound/soc/meson/t9015.c | 20 +- sound/soc/pxa/Kconfig | 3 - sound/soc/qcom/common.c | 2 +- sound/soc/rockchip/rockchip_i2s_tdm.c | 352 +- sound/soc/sh/rz-ssi.c | 2 +- sound/soc/soc-compress.c | 4 + sound/soc/soc-core.c | 24 +- sound/soc/soc-dapm.c | 8 +- sound/soc/sof/amd/Kconfig | 18 + sound/soc/sof/amd/acp-common.c | 65 +- sound/soc/sof/amd/acp-dsp-offset.h | 10 + sound/soc/sof/amd/acp-loader.c | 34 +- sound/soc/sof/amd/acp.c | 252 +- sound/soc/sof/amd/acp.h | 33 +- sound/soc/sof/amd/pci-acp63.c | 7 + sound/soc/sof/amd/vangogh.c | 9 +- sound/soc/sof/core.c | 10 + sound/soc/sof/debug.c | 8 +- sound/soc/sof/fw-file-profile.c | 18 +- sound/soc/sof/imx/imx8.c | 16 + sound/soc/sof/imx/imx8m.c | 10 + sound/soc/sof/imx/imx8ulp.c | 10 + sound/soc/sof/intel/hda-common-ops.c | 1 + sound/soc/sof/intel/hda-dai-ops.c | 51 +- sound/soc/sof/intel/hda-dai.c | 17 +- sound/soc/sof/intel/hda-dsp.c | 5 + sound/soc/sof/intel/hda-stream.c | 9 + sound/soc/sof/intel/hda.c | 80 +- sound/soc/sof/intel/hda.h | 5 + sound/soc/sof/intel/lnl.c | 24 +- sound/soc/sof/ipc3-loader.c | 2 + sound/soc/sof/ipc3-pcm.c | 25 + sound/soc/sof/ipc3-topology.c | 40 + sound/soc/sof/ipc4-pcm.c | 19 +- sound/soc/sof/ipc4-priv.h | 4 + sound/soc/sof/ipc4-topology.c | 28 +- sound/soc/sof/ops.h | 9 + sound/soc/sof/sof-audio.c | 8 +- sound/soc/sof/sof-audio.h | 2 + sound/soc/sof/sof-priv.h | 10 + sound/soc/sof/topology.c | 30 +- sound/soc/ti/j721e-evm.c | 4 +- sound/soc/ti/omap-hdmi.c | 10 +- 224 files changed, 13139 insertions(+), 2591 deletions(-) create mode 100644 Documentation/ABI/testing/sysfs-bus-pci-devices-avs create mode 100644 Documentation/devicetree/bindings/sound/atmel,asoc-wm8904.yaml create mode 100644 Documentation/devicetree/bindings/sound/atmel,sam9x5-wm8731-audio.yaml delete mode 100644 Documentation/devicetree/bindings/sound/atmel-sam9x5-wm8731-audio.txt delete mode 100644 Documentation/devicetree/bindings/sound/atmel-wm8904.txt delete mode 100644 Documentation/devicetree/bindings/sound/fsl,asrc.txt create mode 100644 Documentation/devicetree/bindings/sound/fsl,imx-asrc.yaml create mode 100644 Documentation/devicetree/bindings/sound/qcom,wcd939x-sdw.yaml create mode 100644 Documentation/devicetree/bindings/sound/qcom,wcd939x.yaml create mode 100644 Documentation/devicetree/bindings/sound/qcom,wcd93xx-common.yaml create mode 100644 Documentation/devicetree/bindings/sound/realtek,rt1015.yaml delete mode 100644 Documentation/devicetree/bindings/sound/rt1015.txt create mode 100644 drivers/soundwire/amd_init.c create mode 100644 drivers/soundwire/amd_init.h create mode 100644 include/sound/cs-amp-lib.h create mode 100644 sound/soc/amd/acp/amd-sdw-acpi.c create mode 100644 sound/soc/codecs/cs-amp-lib-test.c create mode 100644 sound/soc/codecs/cs-amp-lib.c create mode 100644 sound/soc/codecs/framer-codec.c create mode 100644 sound/soc/codecs/wcd939x-sdw.c create mode 100644 sound/soc/codecs/wcd939x.c create mode 100644 sound/soc/codecs/wcd939x.h create mode 100644 sound/soc/intel/avs/cnl.c create mode 100644 sound/soc/intel/avs/icl.c create mode 100644 sound/soc/intel/avs/sysfs.c create mode 100644 sound/soc/intel/avs/tgl.c

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synaptics hi-res audio usb device duplex, usb bandwidth issues
by Ian Malone 21 Mar '24

21 Mar '24

Hi, In short I have a USB to 3.5mm adapter which seems not to work in duplex mode on USB2.0 systems, possibly due to a bandwidth calculation bug. This is an evolution of an issue I previously posted on the users list with no luck. I have an Anker USB-C to 3.5mm audio dongle (lsusb: Conexant Systems (Rockwell), Inc. Hi-Res Audio) which I've used for some time on my phone (Android with USB-3.2). On trying to use it with an older T420 laptop recently with only USB-2.0 ports I discovered it will not work in duplex mode. Input-only and output-only profiles work (tested recording and playback with audacity), but with duplex no sound is recorded (Fedora 39, pipewire). This is easily reproduced by looking at the pavucontrol volume monitor for Output Devices, if I switch the device to Analog or Digital Input in configuration then the Input Devices level monitor for it shows activity if I speak into or tap the microphone. With duplex selected there is no activity, the level monitor bar may or may not display. I can switch between the two behaviours by changing the profile. Various applications such as Audacity and Zoom appear to hang when accessing this microphone with the duplex profile set. I've used pipewire configuration to force the format to 16LE only (playback and recording), but this has not helped. In dmesg this error appears when this happens (microphone opened, for example by pavucontrol): [ 294.825544] usb 1-1.1: cannot submit urb 0, error -28: not enough bandwidth (T420, Fedora 39, kernel 6.7.5) The T420 has USB 2 Type A ports, so a Type C to Type A adapter is needed, but the problem is not limited to the T420 laptop. On an older Samsung Tablet (Tab-A 2019, USB-2.0 Type C, kernel 4.4.177) I've been able to test using Google Meet. Although there are no errors or freezing observed, in headphone mode over USB the headphone microphone is not being used and the tablet uses its onboard microphone instead (although headphones are selected and playback is over the headphones). Again, I can record (via voice recorder) from the headset microphone, just no duplex. Trying google meet on my phone (USB3.2) I do get duplex over the USB-3.5 adapter. On a newer laptop with USB-3.2 and a mix of type A and C ports I also get duplex (F37, kernel 6.5.12), however dmesg shows even here not all is well, using the type A and C ports on the side: [ 9172.326602] usb 3-1: new full-speed USB device number 6 using xhci_hcd [ 9172.490169] usb 3-1: New USB device found, idVendor=0572, idProduct=1b08, bcdDevice= 0.10 [ 9172.490174] usb 3-1: New USB device strings: Mfr=1, Product=2, SerialNumber=3 [ 9172.490177] usb 3-1: Product: Hi-Res Audio [ 9172.490178] usb 3-1: Manufacturer: Synaptics [ 9172.490180] usb 3-1: SerialNumber: 000000000000000000000000 [ 9172.683435] input: Synaptics Hi-Res Audio as /devices/pci0000:00/0000:00:08.1/0000:05:00.4/usb3/3-1/3-1:1.3/0003:0572:1B08.000A/input/input36 [ 9172.736025] hid-generic 0003:0572:1B08.000A: input,hidraw5: USB HID v1.11 Device [Synaptics Hi-Res Audio] on usb-0000:05:00.4-1/input3 [ 9173.386988] usb 3-1: Not enough bandwidth for new device state. [ 9173.386994] usb 3-1: Not enough bandwidth for altsetting 1 [ 9173.386996] endpoint_set_interface: 70 callbacks suppressed [ 9173.386998] usb 3-1: 1:1: usb_set_interface failed (-28) [ 9173.387110] usb 3-1: Not enough bandwidth for new device state. [ 9173.387113] usb 3-1: Not enough bandwidth for altsetting 1 (...these 3 lines repeat 9 more times, followed by...) [ 9173.388785] usb 3-1: Not enough bandwidth for new device state. [ 9173.388789] usb 3-1: Not enough bandwidth for altsetting 1 (...these 2 lines repeat 5 more times, then stop) This is a USB3.2 system, the onboard camera has a hardware switch, so I can disable it, and the only other peripheral that appears is the AX210 bluetooth (I'd thought that would have its own bus as it's part of a separate wifi chip, but apparently not, lsusb -t below), bandwidth for even a 96kHz 24bit duplex audio device shouldn't really be an issue. $ lsusb Bus 004 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub Bus 003 Device 003: ID 8087:0032 Intel Corp. AX210 Bluetooth Bus 003 Device 002: ID 048d:c965 Integrated Technology Express, Inc. ITE Device(8295) Bus 003 Device 007: ID 0572:1b08 Conexant Systems (Rockwell), Inc. Hi-Res Audio Bus 003 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub Bus 002 Device 002: ID 0bda:0411 Realtek Semiconductor Corp. Hub Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub Bus 001 Device 004: ID 048d:c101 Integrated Technology Express, Inc. ITE Device(8910) Bus 001 Device 002: ID 0bda:5411 Realtek Semiconductor Corp. RTS5411 Hub Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub $ lsusb -t /: Bus 04.Port 1: Dev 1, Class=root_hub, Driver=xhci_hcd/2p, 10000M /: Bus 03.Port 1: Dev 1, Class=root_hub, Driver=xhci_hcd/4p, 480M |__ Port 1: Dev 7, If 0, Class=Audio, Driver=snd-usb-audio, 12M |__ Port 1: Dev 7, If 1, Class=Audio, Driver=snd-usb-audio, 12M |__ Port 1: Dev 7, If 2, Class=Audio, Driver=snd-usb-audio, 12M |__ Port 1: Dev 7, If 3, Class=Human Interface Device, Driver=usbhid, 12M |__ Port 3: Dev 2, If 0, Class=Human Interface Device, Driver=usbhid, 12M |__ Port 3: Dev 2, If 1, Class=Human Interface Device, Driver=usbhid, 12M |__ Port 4: Dev 3, If 0, Class=Wireless, Driver=btusb, 12M |__ Port 4: Dev 3, If 1, Class=Wireless, Driver=btusb, 12M /: Bus 02.Port 1: Dev 1, Class=root_hub, Driver=xhci_hcd/2p, 10000M |__ Port 2: Dev 2, If 0, Class=Hub, Driver=hub/4p, 5000M /: Bus 01.Port 1: Dev 1, Class=root_hub, Driver=xhci_hcd/4p, 480M |__ Port 2: Dev 2, If 0, Class=Hub, Driver=hub/4p, 480M |__ Port 4: Dev 4, If 0, Class=Human Interface Device, Driver=usbhid, 12M The only situation in which I *don't* get these dmesg errors is if I use one of the rear USB 3.2 ports that seem to lead to it being on its own bus: $ lsusb -t /: Bus 04.Port 1: Dev 1, Class=root_hub, Driver=xhci_hcd/2p, 10000M /: Bus 03.Port 1: Dev 1, Class=root_hub, Driver=xhci_hcd/4p, 480M |__ Port 3: Dev 2, If 0, Class=Human Interface Device, Driver=usbhid, 12M |__ Port 3: Dev 2, If 1, Class=Human Interface Device, Driver=usbhid, 12M |__ Port 4: Dev 3, If 0, Class=Wireless, Driver=btusb, 12M |__ Port 4: Dev 3, If 1, Class=Wireless, Driver=btusb, 12M /: Bus 02.Port 1: Dev 1, Class=root_hub, Driver=xhci_hcd/2p, 10000M |__ Port 2: Dev 2, If 0, Class=Hub, Driver=hub/4p, 5000M /: Bus 01.Port 1: Dev 1, Class=root_hub, Driver=xhci_hcd/4p, 480M |__ Port 2: Dev 2, If 0, Class=Hub, Driver=hub/4p, 480M |__ Port 2: Dev 7, If 0, Class=Audio, Driver=snd-usb-audio, 12M |__ Port 2: Dev 7, If 1, Class=Audio, Driver=snd-usb-audio, 12M |__ Port 2: Dev 7, If 2, Class=Audio, Driver=snd-usb-audio, 12M |__ Port 2: Dev 7, If 3, Class=Human Interface Device, Driver=usbhid, 12M |__ Port 4: Dev 4, If 0, Class=Human Interface Device, Driver=usbhid, 12M In this case the dmesg output is clear after device connection. This seems like some kind of bandwidth calculation problem in snd_usb_audio. I've tried building a kernel and modifying various of the defines in sound/usb/card.h (currently MAX_PACKS 4 and MAX_PACKS_HS (MAX_PACKS * 4), compared to 6 and *8) but not hit on a winning formula yet. Is there any information I could collect to try to fix this? -- imalone

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