From nobody Fri Oct 3 10:11:08 2025 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 905152D2382; Wed, 3 Sep 2025 05:09:47 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1756876187; cv=none; b=LC2NpqSMYeNNZTZinNBDEePwyvaK8NB59Honnifw+5H5dNwQeSi4H0vwdedUYWt3tl/UpX8OrPK/OYL5i6U2baZTY58N+DdhaoDC1hnXr4ZgdUgmHXkEy+4gRQaB5j9qQ1faRKQy8511FUznrT3zBWJwwJKt2wZH5uLAd7htQ80= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1756876187; c=relaxed/simple; bh=wfgQLINE+rLYXjlgnjlErA+lp8Av5ThpURzDubhNvEo=; h=From:Date:Subject:MIME-Version:Content-Type:Message-Id:References: In-Reply-To:To:Cc; b=LR/YUHkiHcL8RRMYVr24Mr10bGvG4bWwz/B9eo9tO4CdAQ5irgAZy4bXu7RL+4U9kXy3qvt3sIgkd9i/rl7j8GnJhgNIG5zpoiHOZ3YC9r/NMAX+d5uHGRuiYePpYgaPMbSUs7tarT2SrnDmlSzW06NBmVTC5KiUHgugU2wIGF8= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=mKsQO427; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="mKsQO427" Received: by smtp.kernel.org (Postfix) with ESMTPS id 3AD29C4CEF1; Wed, 3 Sep 2025 05:09:47 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1756876187; bh=wfgQLINE+rLYXjlgnjlErA+lp8Av5ThpURzDubhNvEo=; h=From:Date:Subject:References:In-Reply-To:To:Cc:Reply-To:From; b=mKsQO427c1urE6y3eHGSlJ0BBPG4FSde/HsHiJJfuKiZ2sjzY0dNJ3vhy9P1gtkMS g4Bt9xiWlGrjCAV7zgSezlcK/ZD//RZ2wIjIdOUb6ZI6XtvOhrRRhInbmWikW0bB4i u33uaSpvepqJugvMUnkkgxqKDh4HepCjzi2uXDGYHf3VultkX9iK8tNA1Zbb81ccPy LpB7JgIv4BpdJbvwyuumozLbUMf3VkC8c0dy8gmgYdUES5qwpHQPhDC4sp91tN76VX VUgFTiL4MwI0A8lP8Y1iCkWs/lWgC1WoUg+YXaXvxcRlWZAE7XzRTAvBUDcqOYs5wT sQ/R1jSXQrp9A== Received: from aws-us-west-2-korg-lkml-1.web.codeaurora.org (localhost.localdomain [127.0.0.1]) by smtp.lore.kernel.org (Postfix) with ESMTP id 2A531CA1007; Wed, 3 Sep 2025 05:09:47 +0000 (UTC) From: Cryolitia PukNgae via B4 Relay Date: Wed, 03 Sep 2025 13:09:46 +0800 Subject: [PATCH 2/4] ALSA: usb-audio: add quirk QUIRK_FLAG_MIXER_CAPTURE_MIN_MUTE Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Message-Id: <20250903-sound-v1-2-d4ca777b8512@uniontech.com> References: <20250903-sound-v1-0-d4ca777b8512@uniontech.com> In-Reply-To: <20250903-sound-v1-0-d4ca777b8512@uniontech.com> To: Jaroslav Kysela , Takashi Iwai , Jonathan Corbet Cc: linux-sound@vger.kernel.org, linux-kernel@vger.kernel.org, Mingcong Bai , Kexy Biscuit , Nie Cheng , Zhan Jun , Feng Yuan , Celeste Liu , qaqland , linux-doc@vger.kernel.org, Cryolitia PukNgae X-Mailer: b4 0.14.2 X-Developer-Signature: v=1; a=ed25519-sha256; t=1756876185; l=2954; i=cryolitia@uniontech.com; s=20250730; h=from:subject:message-id; bh=96cffDbepRmoALzdF1FSb7F0QqJtNTtbDzVfX1s6B4Y=; b=1xID+OM09wKkCbq4mYuoUra031C0SMSRp8IgO3DkOilYh3ENGuVTBAiaX+EO+Dw97X+ppHjUq YtTR8KYtbsjDh6ng8vs2NO1XUY5BZ4hp+w3cVLHqQIicPRqRd+MvXwc X-Developer-Key: i=cryolitia@uniontech.com; a=ed25519; pk=tZ+U+kQkT45GRGewbMSB4VPmvpD+KkHC/Wv3rMOn/PU= X-Endpoint-Received: by B4 Relay for cryolitia@uniontech.com/20250730 with auth_id=474 X-Original-From: Cryolitia PukNgae Reply-To: cryolitia@uniontech.com From: Cryolitia PukNgae The same hardware problem to QUIRK_FLAG_MIXER_PLAYBACK_MIN_MUTE also occurs on the capture streams on some USB devices. Add a new flag for processing the quirk. Link: https://lore.kernel.org/all/C22C1A172EBB9BD9+eccc2e4a-d21e-4a7d-848c-= bbf3982feb94@uniontech.com/ Signed-off-by: Cryolitia PukNgae --- Documentation/sound/alsa-configuration.rst | 1 + sound/usb/mixer_quirks.c | 7 +++++++ sound/usb/usbaudio.h | 3 +++ 3 files changed, 11 insertions(+) diff --git a/Documentation/sound/alsa-configuration.rst b/Documentation/sou= nd/alsa-configuration.rst index 062b86522e4d9cc7ec19e978e0efc934dae9ab1b..bf45df1558bbc361ca165abaf9c= 5d83bfe3188e2 100644 --- a/Documentation/sound/alsa-configuration.rst +++ b/Documentation/sound/alsa-configuration.rst @@ -2329,6 +2329,7 @@ quirk_flags * bit 24: Set minimum volume control value as mute for devices where the lowest playback value represents muted state instead of minimum audible volume + * bit 25: Be similar to bit 24 but for capture streams =20 This module supports multiple devices, autoprobe and hotplugging. =20 diff --git a/sound/usb/mixer_quirks.c b/sound/usb/mixer_quirks.c index 2a1abc24dbfc0c6b69d64529eda01bc25f1a6dd1..828af3095b86ee0aa8f2d248d8e= 714b5d3ae20eb 100644 --- a/sound/usb/mixer_quirks.c +++ b/sound/usb/mixer_quirks.c @@ -4550,6 +4550,13 @@ void snd_usb_mixer_fu_apply_quirk(struct usb_mixer_i= nterface *mixer, cval->min_mute =3D 1; } =20 + /* lowest capture value is muted on some devices */ + if (mixer->chip->quirk_flags & QUIRK_FLAG_MIXER_CAPTURE_MIN_MUTE) + if (strstr(kctl->id.name, "Capture")) { + usb_audio_info(mixer->chip, + "applying capture min mute quirk\n"); + cval->min_mute =3D 1; + } /* ALSA-ify some Plantronics headset control names */ if (USB_ID_VENDOR(mixer->chip->usb_id) =3D=3D 0x047f && (cval->control =3D=3D UAC_FU_MUTE || cval->control =3D=3D UAC_FU_VOLU= ME)) diff --git a/sound/usb/usbaudio.h b/sound/usb/usbaudio.h index 707b3037b1b3a3d2997157154cf78d71455bfe4b..30b5102e3caed01eeb86d0075c4= 1338104c58950 100644 --- a/sound/usb/usbaudio.h +++ b/sound/usb/usbaudio.h @@ -222,6 +222,8 @@ extern bool snd_usb_skip_validation; * QUIRK_FLAG_MIXER_PLAYBACK_MIN_MUTE * Set minimum volume control value as mute for devices where the lowest * playback value represents muted state instead of minimum audible volume + * QUIRK_FLAG_MIXER_CAPTURE_MIN_MUTE + * Similar to QUIRK_FLAG_MIXER_PLAYBACK_MIN_MUTE, but for capture streams */ =20 #define QUIRK_FLAG_GET_SAMPLE_RATE (1U << 0) @@ -249,5 +251,6 @@ extern bool snd_usb_skip_validation; #define QUIRK_FLAG_MIC_RES_16 (1U << 22) #define QUIRK_FLAG_MIC_RES_384 (1U << 23) #define QUIRK_FLAG_MIXER_PLAYBACK_MIN_MUTE (1U << 24) +#define QUIRK_FLAG_MIXER_CAPTURE_MIN_MUTE (1U << 25) =20 #endif /* __USBAUDIO_H */ --=20 2.51.0