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

[PATCH 0/4] ASoC: cs35l56: Fixes to handling of ASP1 config registers
by Richard Fitzgerald 10 Apr '24

10 Apr '24

This chain fixes some problems with some previous patches for handling the ASP1 config registers. The root of the problem is that the ownership of these registers can be either with the firmware or the driver, and that the chip has to be soft-reset after downloading the firmware. This chain adds and uses a regmap_read_bypassed() function so that the driver can leave the regmap in cache-only until the chip has rebooted, but still poll a register to detect when the chip has rebooted. Richard Fitzgerald (4): regmap: Add regmap_read_bypassed() ALSA: hda: cs35l56: Exit cache-only after cs35l56_wait_for_firmware_boot() ASoC: cs35l56: Fix unintended bus access while resetting amp ASoC: cs35l56: Prevent overwriting firmware ASP config drivers/base/regmap/regmap.c | 37 ++++++++++++++ include/linux/regmap.h | 8 +++ include/sound/cs35l56.h | 2 + sound/pci/hda/cs35l56_hda.c | 4 ++ sound/soc/codecs/cs35l56-sdw.c | 2 - sound/soc/codecs/cs35l56-shared.c | 83 ++++++++++++++++++++----------- sound/soc/codecs/cs35l56.c | 26 +++++++++- 7 files changed, 130 insertions(+), 32 deletions(-) -- 2.39.2

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[PATCH 2/2] ASoC: rt722-sdca: modify channel number to support 4 channels
by Jack Yu 10 Apr '24

10 Apr '24

Channel numbers of dmic supports 4 channels, modify channels_max regarding to this issue. Signed-off-by: Jack Yu <jack.yu(a)realtek.com> --- sound/soc/codecs/rt722-sdca.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/sound/soc/codecs/rt722-sdca.c b/sound/soc/codecs/rt722-sdca.c index 87bd50e761fc..e5bd9ef812de 100644 --- a/sound/soc/codecs/rt722-sdca.c +++ b/sound/soc/codecs/rt722-sdca.c @@ -1330,7 +1330,7 @@ static struct snd_soc_dai_driver rt722_sdca_dai[] = { .capture = { .stream_name = "DP6 DMic Capture", .channels_min = 1, - .channels_max = 2, + .channels_max = 4, .rates = RT722_STEREO_RATES, .formats = RT722_FORMATS, }, -- 2.34.1

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[PATCH 1/2] ASoC: rt722-sdca: add headset microphone vrefo setting
by Jack Yu 10 Apr '24

10 Apr '24

Add vrefo settings to fix jd and headset mic recording issue. Signed-off-by: Jack Yu <jack.yu(a)realtek.com> --- sound/soc/codecs/rt722-sdca.c | 25 +++++++++++++++++++------ sound/soc/codecs/rt722-sdca.h | 3 +++ 2 files changed, 22 insertions(+), 6 deletions(-) diff --git a/sound/soc/codecs/rt722-sdca.c b/sound/soc/codecs/rt722-sdca.c index e0ea3a23f7cc..87bd50e761fc 100644 --- a/sound/soc/codecs/rt722-sdca.c +++ b/sound/soc/codecs/rt722-sdca.c @@ -1439,9 +1439,12 @@ static void rt722_sdca_jack_preset(struct rt722_sdca_priv *rt722) int loop_check, chk_cnt = 100, ret; unsigned int calib_status = 0; - /* Read eFuse */ - rt722_sdca_index_write(rt722, RT722_VENDOR_SPK_EFUSE, RT722_DC_CALIB_CTRL, - 0x4808); + /* Config analog bias */ + rt722_sdca_index_write(rt722, RT722_VENDOR_REG, RT722_ANALOG_BIAS_CTL3, + 0xa081); + /* GE related settings */ + rt722_sdca_index_write(rt722, RT722_VENDOR_HDA_CTL, RT722_GE_RELATED_CTL2, + 0xa009); /* Button A, B, C, D bypass mode */ rt722_sdca_index_write(rt722, RT722_VENDOR_HDA_CTL, RT722_UMP_HID_CTL4, 0xcf00); @@ -1475,9 +1478,6 @@ static void rt722_sdca_jack_preset(struct rt722_sdca_priv *rt722) if ((calib_status & 0x0040) == 0x0) break; } - /* Release HP-JD, EN_CBJ_TIE_GL/R open, en_osw gating auto done bit */ - rt722_sdca_index_write(rt722, RT722_VENDOR_REG, RT722_DIGITAL_MISC_CTRL4, - 0x0010); /* Set ADC09 power entity floating control */ rt722_sdca_index_write(rt722, RT722_VENDOR_HDA_CTL, RT722_ADC0A_08_PDE_FLOAT_CTL, 0x2a12); @@ -1490,8 +1490,21 @@ static void rt722_sdca_jack_preset(struct rt722_sdca_priv *rt722) /* Set DAC03 and HP power entity floating control */ rt722_sdca_index_write(rt722, RT722_VENDOR_HDA_CTL, RT722_DAC03_HP_PDE_FLOAT_CTL, 0x4040); + rt722_sdca_index_write(rt722, RT722_VENDOR_HDA_CTL, RT722_ENT_FLOAT_CTRL_1, + 0x4141); + rt722_sdca_index_write(rt722, RT722_VENDOR_HDA_CTL, RT722_FLOAT_CTRL_1, + 0x0101); /* Fine tune PDE40 latency */ regmap_write(rt722->regmap, 0x2f58, 0x07); + regmap_write(rt722->regmap, 0x2f03, 0x06); + /* MIC VRefo */ + rt722_sdca_index_update_bits(rt722, RT722_VENDOR_REG, + RT722_COMBO_JACK_AUTO_CTL1, 0x0200, 0x0200); + rt722_sdca_index_update_bits(rt722, RT722_VENDOR_REG, + RT722_VREFO_GAT, 0x4000, 0x4000); + /* Release HP-JD, EN_CBJ_TIE_GL/R open, en_osw gating auto done bit */ + rt722_sdca_index_write(rt722, RT722_VENDOR_REG, RT722_DIGITAL_MISC_CTRL4, + 0x0010); } int rt722_sdca_io_init(struct device *dev, struct sdw_slave *slave) diff --git a/sound/soc/codecs/rt722-sdca.h b/sound/soc/codecs/rt722-sdca.h index 44af8901352e..2464361a7958 100644 --- a/sound/soc/codecs/rt722-sdca.h +++ b/sound/soc/codecs/rt722-sdca.h @@ -69,6 +69,7 @@ struct rt722_sdca_dmic_kctrl_priv { #define RT722_COMBO_JACK_AUTO_CTL2 0x46 #define RT722_COMBO_JACK_AUTO_CTL3 0x47 #define RT722_DIGITAL_MISC_CTRL4 0x4a +#define RT722_VREFO_GAT 0x63 #define RT722_FSM_CTL 0x67 #define RT722_SDCA_INTR_REC 0x82 #define RT722_SW_CONFIG1 0x8a @@ -127,6 +128,8 @@ struct rt722_sdca_dmic_kctrl_priv { #define RT722_UMP_HID_CTL6 0x66 #define RT722_UMP_HID_CTL7 0x67 #define RT722_UMP_HID_CTL8 0x68 +#define RT722_FLOAT_CTRL_1 0x70 +#define RT722_ENT_FLOAT_CTRL_1 0x76 /* Parameter & Verb control 01 (0x1a)(NID:20h) */ #define RT722_HIDDEN_REG_SW_RESET (0x1 << 14) -- 2.34.1

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[PATCH] ASoC: amd: fix for soundwire build dependencies for legacy stack
by Vijendar Mukunda 09 Apr '24

09 Apr '24

The SND_SOC_AMD_SOUNDWIRE Kconfig symbol has build dependency on SOUNDWIRE_AMD. It gets it wrong for a configuration involving SND_SOC_AMD_SOUNDWIRE_LINK_BASELINE=y,SND_SOC_AMD_PS=y and SOUNDWIRE_AMD=m, which results in a link failure: ld: vmlinux.o: in function `amd_sdw_probe': >> sound/soc/amd/ps/pci-ps.c:271:(.text+0x1d51eff): undefined reference to `sdw_amd_probe' ld: vmlinux.o: in function `acp63_sdw_machine_select': >> sound/soc/amd/ps/pci-ps.c:294:(.text+0x1d525d5): undefined reference to `sdw_amd_get_slave_info' ld: vmlinux.o: in function `amd_sdw_exit': >> sound/soc/amd/ps/pci-ps.c:280:(.text+0x1d538ce): undefined reference to `sdw_amd_exit' Add a top level check config that forbids any of the AMD ACP drivers with version >= 6.3 from being built-in with CONFIG_SOUNDWIRE_AMD=m. Move SND_AMD_ACP_CONFIG common dependency config to SND_SOC_AMD_ACP63_TOPLEVEL config. Reported-by: kernel test robot <lkp(a)intel.com> Closes: https://lore.kernel.org/oe-kbuild-all/202404061257.khJml82D-lkp@intel.com/ Fixes: a806793f231e ("ASoC: amd: simplify soundwire dependencies for legacy stack") Signed-off-by: Vijendar Mukunda <Vijendar.Mukunda(a)amd.com> --- sound/soc/amd/Kconfig | 16 +++++++++++++++- 1 file changed, 15 insertions(+), 1 deletion(-) diff --git a/sound/soc/amd/Kconfig b/sound/soc/amd/Kconfig index 3508f5a96b75..6dec44f516c1 100644 --- a/sound/soc/amd/Kconfig +++ b/sound/soc/amd/Kconfig @@ -132,6 +132,19 @@ config SND_SOC_AMD_RPL_ACP6x Say m if you have such a device. If unsure select "N". +config SND_SOC_AMD_ACP63_TOPLEVEL + tristate "support for AMD platforms with ACP version >= 6.3" + default SND_AMD_ACP_CONFIG + depends on SND_AMD_ACP_CONFIG + depends on SOUNDWIRE_AMD || !SOUNDWIRE_AMD + depends on X86 || COMPILE_TEST + help + This adds support for AMD platforms with ACP version >= 6.3. + Say Y if you have such a device. + If unsure select "N". + +if SND_SOC_AMD_ACP63_TOPLEVEL + config SND_SOC_AMD_SOUNDWIRE_LINK_BASELINE tristate select SND_AMD_SOUNDWIRE_ACPI if ACPI @@ -149,7 +162,6 @@ config SND_SOC_AMD_SOUNDWIRE config SND_SOC_AMD_PS tristate "AMD Audio Coprocessor-v6.3 Pink Sardine support" - select SND_AMD_ACP_CONFIG select SND_SOC_AMD_SOUNDWIRE_LINK_BASELINE depends on X86 && PCI && ACPI help @@ -170,3 +182,5 @@ config SND_SOC_AMD_PS_MACH DMIC can be connected directly to ACP IP. Say m if you have such a device. If unsure select "N". + +endif -- 2.34.1

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[PATCH 1/2] ASoC: rt5645: Fix the electric noise due to the CBJ contacts floating
by derek.fang＠realtek.com 09 Apr '24

09 Apr '24

From: Derek Fang <derek.fang(a)realtek.com> The codec leaves tie combo jack's sleeve/ring2 to floating status default. It would cause electric noise while connecting the active speaker jack during boot or shutdown. This patch requests a gpio to control the additional jack circuit to tie the contacts to the ground or floating. Signed-off-by: Derek Fang <derek.fang(a)realtek.com> diff --git a/sound/soc/codecs/rt5645.c b/sound/soc/codecs/rt5645.c index e3ba04484813..d0d24a53df74 100644 --- a/sound/soc/codecs/rt5645.c +++ b/sound/soc/codecs/rt5645.c @@ -444,6 +444,7 @@ struct rt5645_priv { struct regmap *regmap; struct i2c_client *i2c; struct gpio_desc *gpiod_hp_det; + struct gpio_desc *gpiod_cbj_sleeve; struct snd_soc_jack *hp_jack; struct snd_soc_jack *mic_jack; struct snd_soc_jack *btn_jack; @@ -3186,6 +3187,9 @@ static int rt5645_jack_detect(struct snd_soc_component *component, int jack_inse regmap_update_bits(rt5645->regmap, RT5645_IN1_CTRL2, RT5645_CBJ_MN_JD, 0); + if (rt5645->gpiod_cbj_sleeve) + gpiod_set_value(rt5645->gpiod_cbj_sleeve, 1); + msleep(600); regmap_read(rt5645->regmap, RT5645_IN1_CTRL3, &val); val &= 0x7; @@ -3202,6 +3206,8 @@ static int rt5645_jack_detect(struct snd_soc_component *component, int jack_inse snd_soc_dapm_disable_pin(dapm, "Mic Det Power"); snd_soc_dapm_sync(dapm); rt5645->jack_type = SND_JACK_HEADPHONE; + if (rt5645->gpiod_cbj_sleeve) + gpiod_set_value(rt5645->gpiod_cbj_sleeve, 0); } if (rt5645->pdata.level_trigger_irq) regmap_update_bits(rt5645->regmap, RT5645_IRQ_CTRL2, @@ -3229,6 +3235,9 @@ static int rt5645_jack_detect(struct snd_soc_component *component, int jack_inse if (rt5645->pdata.level_trigger_irq) regmap_update_bits(rt5645->regmap, RT5645_IRQ_CTRL2, RT5645_JD_1_1_MASK, RT5645_JD_1_1_INV); + + if (rt5645->gpiod_cbj_sleeve) + gpiod_set_value(rt5645->gpiod_cbj_sleeve, 0); } return rt5645->jack_type; @@ -4012,6 +4021,16 @@ static int rt5645_i2c_probe(struct i2c_client *i2c) return ret; } + rt5645->gpiod_cbj_sleeve = devm_gpiod_get_optional(&i2c->dev, "cbj-sleeve", + GPIOD_OUT_LOW); + + if (IS_ERR(rt5645->gpiod_cbj_sleeve)) { + ret = PTR_ERR(rt5645->gpiod_cbj_sleeve); + dev_info(&i2c->dev, "failed to initialize gpiod, ret=%d\n", ret); + if (ret != -ENOENT) + return ret; + } + for (i = 0; i < ARRAY_SIZE(rt5645->supplies); i++) rt5645->supplies[i].supply = rt5645_supply_names[i]; @@ -4259,6 +4278,9 @@ static void rt5645_i2c_remove(struct i2c_client *i2c) cancel_delayed_work_sync(&rt5645->jack_detect_work); cancel_delayed_work_sync(&rt5645->rcclock_work); + if (rt5645->gpiod_cbj_sleeve) + gpiod_set_value(rt5645->gpiod_cbj_sleeve, 0); + regulator_bulk_disable(ARRAY_SIZE(rt5645->supplies), rt5645->supplies); } @@ -4274,6 +4296,9 @@ static void rt5645_i2c_shutdown(struct i2c_client *i2c) 0); msleep(20); regmap_write(rt5645->regmap, RT5645_RESET, 0); + + if (rt5645->gpiod_cbj_sleeve) + gpiod_set_value(rt5645->gpiod_cbj_sleeve, 0); } static int __maybe_unused rt5645_sys_suspend(struct device *dev) -- 2.34.1

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[PATCH] ASoC: Intel: sof_rt5682: Fix uninitialized variable in probe
by Dan Carpenter 09 Apr '24

09 Apr '24

Initialize "is_legacy_cpu" to false to prevent an uninitialized variable bug. Fixes: 8efcd4864652 ("ASoC: Intel: sof_rt5682: use common module for sof_card_private initialization") Signed-off-by: Dan Carpenter <dan.carpenter(a)linaro.org> --- sound/soc/intel/boards/sof_rt5682.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/sound/soc/intel/boards/sof_rt5682.c b/sound/soc/intel/boards/sof_rt5682.c index aadd341a202c..966bcd3e8bdc 100644 --- a/sound/soc/intel/boards/sof_rt5682.c +++ b/sound/soc/intel/boards/sof_rt5682.c @@ -606,7 +606,7 @@ static int sof_audio_probe(struct platform_device *pdev) { struct snd_soc_acpi_mach *mach = pdev->dev.platform_data; struct sof_card_private *ctx; - bool is_legacy_cpu; + bool is_legacy_cpu = false; int ret; if (pdev->id_entry && pdev->id_entry->driver_data) -- 2.43.0

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[PATCH] ASoC: Intel: bytcr_rt5640: Apply Asus T100TA quirk to Asus T100TAM too
by Hans de Goede 09 Apr '24

09 Apr '24

The Asus T100TA quirk has been using an exact match on a product-name of "T100TA" but there are also T100TAM variants with a slightly higher clocked CPU and a metal backside which need the same quirk. Sort the existing T100TA (stereo speakers) below the more specific T100TAF (mono speaker) quirk and switch from exact matching to substring matching so that the T100TA quirk will also match on the T100TAM models. Signed-off-by: Hans de Goede <hdegoede(a)redhat.com> --- sound/soc/intel/boards/bytcr_rt5640.c | 24 +++++++++++++----------- 1 file changed, 13 insertions(+), 11 deletions(-) diff --git a/sound/soc/intel/boards/bytcr_rt5640.c b/sound/soc/intel/boards/bytcr_rt5640.c index 05f38d1f7d82..b41a1147f1c3 100644 --- a/sound/soc/intel/boards/bytcr_rt5640.c +++ b/sound/soc/intel/boards/bytcr_rt5640.c @@ -636,17 +636,7 @@ static const struct dmi_system_id byt_rt5640_quirk_table[] = { BYT_RT5640_USE_AMCR0F28), }, { - .matches = { - DMI_EXACT_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."), - DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "T100TA"), - }, - .driver_data = (void *)(BYT_RT5640_IN1_MAP | - BYT_RT5640_JD_SRC_JD2_IN4N | - BYT_RT5640_OVCD_TH_2000UA | - BYT_RT5640_OVCD_SF_0P75 | - BYT_RT5640_MCLK_EN), - }, - { + /* Asus T100TAF, unlike other T100TA* models this one has a mono speaker */ .matches = { DMI_EXACT_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."), DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "T100TAF"), @@ -660,6 +650,18 @@ static const struct dmi_system_id byt_rt5640_quirk_table[] = { BYT_RT5640_SSP0_AIF2 | BYT_RT5640_MCLK_EN), }, + { + /* Asus T100TA and T100TAM, must come after T100TAF (mono spk) match */ + .matches = { + DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."), + DMI_MATCH(DMI_PRODUCT_NAME, "T100TA"), + }, + .driver_data = (void *)(BYT_RT5640_IN1_MAP | + BYT_RT5640_JD_SRC_JD2_IN4N | + BYT_RT5640_OVCD_TH_2000UA | + BYT_RT5640_OVCD_SF_0P75 | + BYT_RT5640_MCLK_EN), + }, { .matches = { DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."), -- 2.44.0

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[PATCH] ASoC: Intel: avs: Fix debug window description
by Cezary Rojewski 09 Apr '24

09 Apr '24

Recent changes addressed PAGE_SIZE ambiguity in 2/3 locations for struct avs_icl_memwnd2. The unaddressed one causes build errors when PAGE_SIZE != SZ_4K. Reported-by: kernel test robot <lkp(a)intel.com> Closes: https://lore.kernel.org/oe-kbuild-all/202404070100.i3t3Jf7d-lkp@intel.com/ Fixes: 275b583d047a ("ASoC: Intel: avs: ICL-based platforms support") Signed-off-by: Cezary Rojewski <cezary.rojewski(a)intel.com> --- Follow up to the recent series for the avs-driver [1]. With static_asserts() added [2], build problems occur when PAGE_SIZE != SZ_4K. Patch fixing memory window description [3] fixed only 2/3 offending spots. [1]: https://lore.kernel.org/alsa-devel/20240405090929.1184068-1-cezary.rojewski… [2]: https://lore.kernel.org/alsa-devel/20240405090929.1184068-13-cezary.rojewsk… [3]: https://lore.kernel.org/alsa-devel/20240405090929.1184068-3-cezary.rojewski… sound/soc/intel/avs/icl.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/sound/soc/intel/avs/icl.c b/sound/soc/intel/avs/icl.c index e8b4983e03e9..7a1ecf241856 100644 --- a/sound/soc/intel/avs/icl.c +++ b/sound/soc/intel/avs/icl.c @@ -66,7 +66,7 @@ static_assert(sizeof(struct avs_icl_memwnd2_desc) == 12); struct avs_icl_memwnd2 { union { struct avs_icl_memwnd2_desc slot_desc[AVS_ICL_MEMWND2_SLOTS_COUNT]; - u8 rsvd[PAGE_SIZE]; + u8 rsvd[SZ_4K]; }; u8 slot_array[AVS_ICL_MEMWND2_SLOTS_COUNT][SZ_4K]; } __packed; base-commit: 1f58d8580e5da64669d923ced99cb3e29832273b -- 2.25.1

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[RESEND PATCH v2] ASoC: tegra: Fix DSPK 16-bit playback
by Sameer Pujar 09 Apr '24

09 Apr '24

DSPK configuration is wrong for 16-bit playback and this happens because the client config is always fixed at 24-bit in hw_params(). Fix this by updating the client config to 16-bit for the respective playback. Fixes: 327ef6470266 ("ASoC: tegra: Add Tegra186 based DSPK driver") Cc: stable(a)vger.kernel.org Signed-off-by: Sameer Pujar <spujar(a)nvidia.com> --- changes in v2: * moved common setting to S32_LE switch case. sound/soc/tegra/tegra186_dspk.c | 7 +++---- 1 file changed, 3 insertions(+), 4 deletions(-) diff --git a/sound/soc/tegra/tegra186_dspk.c b/sound/soc/tegra/tegra186_dspk.c index aa37c4ab0adb..21cd41fec7a9 100644 --- a/sound/soc/tegra/tegra186_dspk.c +++ b/sound/soc/tegra/tegra186_dspk.c @@ -1,8 +1,7 @@ // SPDX-License-Identifier: GPL-2.0-only +// SPDX-FileCopyrightText: Copyright (c) 2020-2024 NVIDIA CORPORATION & AFFILIATES. All rights reserved. // // tegra186_dspk.c - Tegra186 DSPK driver -// -// Copyright (c) 2020 NVIDIA CORPORATION. All rights reserved. #include <linux/clk.h> #include <linux/device.h> @@ -241,14 +240,14 @@ static int tegra186_dspk_hw_params(struct snd_pcm_substream *substream, return -EINVAL; } - cif_conf.client_bits = TEGRA_ACIF_BITS_24; - switch (params_format(params)) { case SNDRV_PCM_FORMAT_S16_LE: cif_conf.audio_bits = TEGRA_ACIF_BITS_16; + cif_conf.client_bits = TEGRA_ACIF_BITS_16; break; case SNDRV_PCM_FORMAT_S32_LE: cif_conf.audio_bits = TEGRA_ACIF_BITS_32; + cif_conf.client_bits = TEGRA_ACIF_BITS_24; break; default: dev_err(dev, "unsupported format!\n"); -- 2.25.1

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aseqdump -u1 can't receive MT4 messages
by GitHub issues - opened 09 Apr '24

09 Apr '24

alsa-project/alsa-utils issue #262 was opened from masahirokakishita: Hello, aseqdump version 1.2.11 karnel 6.5.0 Sending MT4 messages from ProtoZoA to Linux PC, the command, aseqdump -u1 can't receive messages. The command, aseqdump -u0 and aseqdump -u2 can receive these messages. ``` aseqdump -u 2 -p 24:0 24:1 Group 1, Note on 0, note 67, velocity 0xfedc, attr type = 66, data = 0xba98 24:1 Group 1, Note off 0, note 67, velocity 0x1234, attr type = 66, data = 0x5678 24:1 Group 1, Note on 0, note 65, velocity 0x2200, attr type = 1, data = 0x3344 24:1 Group 1, Note off 0, note 65, velocity 0x5500, attr type = 0, data = 0x6677 24:1 Group 1, Note on 0, note 63, velocity 0xffff, attr type = 0, data = 0x0 24:1 Group 1, Note off 0, note 63, velocity 0x8000, attr type = 0, data = 0x0 aseqdump -u 0 -p 24:0 24:1 Note on 0, note 67, velocity 127 24:1 Note off 0, note 67, velocity 9 24:1 Note on 0, note 65, velocity 17 24:1 Note off 0, note 65, velocity 42 24:1 Note on 0, note 63, velocity 127 24:1 Note off 0, note 63, velocity 64 ``` ``` aseqdump -u 1 -p 24:0 ``` Issue URL : https://github.com/alsa-project/alsa-utils/issues/262 Repository URL: https://github.com/alsa-project/alsa-utils

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