From nobody Thu Apr 9 13:28:26 2026 Received: from sender4-op-o15.zoho.com (sender4-op-o15.zoho.com [136.143.188.15]) (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 08BB8314D07; Mon, 2 Mar 2026 17:33:27 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=pass smtp.client-ip=136.143.188.15 ARC-Seal: i=2; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1772472809; cv=pass; b=CNaMfHedjKw0WFzs9j+hH25iNef7X6gRvPg4+sGKPajAAaCEeXi7uCm/w2IdVOm3zLNWuYstV22NV6CItqExd8mtsRtLC9S2MLlZZ0jC+/RBzesX5oB4EfmQlmvIGUcHZWPUIF1A0CFjKWpsD93lBbE2u/6L7VVqx8rkurIXFYI= ARC-Message-Signature: i=2; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1772472809; c=relaxed/simple; bh=j79qPFKWwqwJ0znWaR7jdEQM5IVfUxAVTqaH6kwY++8=; h=From:To:Cc:Subject:Date:Message-ID:MIME-Version; b=aTU1f9aCMR6SfuAIkrlWPfklfQVMA/FlBSSYzF0XEr0wf3ZRsNhmP2/ymOBnLmGJhUMxPQ7cc0OV6I1r4oJAZ4qp+PnYVQOtiP6bUQ1xxJYcPdn1wksxEB1xU0nQuTEMnNCaB16azKSUkpYszRHUcPGAIG+51tgIL4upsCRz8Is= ARC-Authentication-Results: i=2; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=rong.moe; spf=pass smtp.mailfrom=rong.moe; dkim=pass (2048-bit key) header.d=rong.moe header.i=i@rong.moe header.b=lXy/W5cr; arc=pass smtp.client-ip=136.143.188.15 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=rong.moe Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=rong.moe Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=rong.moe header.i=i@rong.moe header.b="lXy/W5cr" ARC-Seal: i=1; a=rsa-sha256; t=1772472790; cv=none; d=zohomail.com; s=zohoarc; b=TjGhzM2q+NMha7IBR/oJbS9IEhVzAkDPrLc+XSCf4Dzdfrsc4392T+pYSKs8/ap0iCaC8CWYzSL9Anowz759QRwRp5Ytmzj4bFpYyHTTZfMqu6a/aq7VeFKw2+tSAd0NLu+d9IPhEJKrPKyVZSjDqvx/jE1H1pOK1D4S85wZ6co= ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=zohomail.com; s=zohoarc; t=1772472790; h=Content-Transfer-Encoding:Cc:Cc:Date:Date:From:From:MIME-Version:Message-ID:Subject:Subject:To:To:Message-Id:Reply-To; bh=/RhZ1MKZIfeNYwmeIDoI3c60SA/6GXTORzAyE/giRgg=; b=KV+qU50lvNJxYgfJva+kYzezGQ3H8GfQhrybjWmOrwbfgvMZPMFtoZSyxUVRAnqTnJyZXQcqDfeDpL6mQyDpDPBFKLFbp8KnXDfzi0n9VZZVdJEtRDUWMO/DTLv3B3atLWC5nnfA9u7FCmYAKZ1iuG4bAETrp8SdZgtDc9lXtvY= ARC-Authentication-Results: i=1; mx.zohomail.com; dkim=pass header.i=rong.moe; spf=pass smtp.mailfrom=i@rong.moe; dmarc=pass header.from= DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; t=1772472790; s=zmail2048; d=rong.moe; i=i@rong.moe; h=From:From:To:To:Cc:Cc:Subject:Subject:Date:Date:Message-ID:MIME-Version:Content-Transfer-Encoding:Message-Id:Reply-To; bh=/RhZ1MKZIfeNYwmeIDoI3c60SA/6GXTORzAyE/giRgg=; b=lXy/W5crwPXlHDn1JwRWKfCQnk8SDS/c3Sgs89dec/Sg7en6NySeY/x2Ly4mrnty KPoKKCRc3WQISYp9isybjBG2gKlxMrP14oolauftvGPZSeOQRx6nNbW+u30nPJqtbSY hdVXY8QAetA+0yDb6udn1Z0A1EexZj2lcv5M/sC3HFLCxXf37ydp9OWY2vlzx0PrXtH OFxK1ewJE9gAbEnjZNKt6UnLSZWt00jhfXd7ag6sgYCS5bp25Dr6mwokbEpvJvydDWB 8tljX1sofQQ49t5npiq3DcsXU89goHeYfkETALVzmq/Cj+3MP6vZIKzUPSXDUt50gTz pHPF1dlctA== Received: by mx.zohomail.com with SMTPS id 1772472789305724.3722919046961; Mon, 2 Mar 2026 09:33:09 -0800 (PST) From: Rong Zhang To: Jaroslav Kysela , Takashi Iwai Cc: Rong Zhang , Jonathan Corbet , Shuah Khan , Cryolitia PukNgae , Arun Raghavan , linux-sound@vger.kernel.org, linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org, Icenowy Zheng , stable@vger.kernel.org Subject: [PATCH] ALSA: doc: usb-audio: Add doc for QUIRK_FLAG_SKIP_IFACE_SETUP Date: Tue, 3 Mar 2026 01:32:59 +0800 Message-ID: <20260302173300.322673-1-i@rong.moe> X-Mailer: git-send-email 2.51.0 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-ZohoMailClient: External Content-Type: text/plain; charset="utf-8" QUIRK_FLAG_SKIP_IFACE_SETUP was introduced into usb-audio before without appropriate documentation, so add it. Fixes: 38c322068a26 ("ALSA: usb-audio: Add QUIRK_FLAG_SKIP_IFACE_SETUP") Cc: stable@vger.kernel.org Signed-off-by: Rong Zhang --- This is separated from https://lore.kernel.org/r/20260301213726.428505-7-i@= rong.moe/ (thanks Takashi Iwai) --- Documentation/sound/alsa-configuration.rst | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/Documentation/sound/alsa-configuration.rst b/Documentation/sou= nd/alsa-configuration.rst index 0a4eaa7d66ddd..55b845d382368 100644 --- a/Documentation/sound/alsa-configuration.rst +++ b/Documentation/sound/alsa-configuration.rst @@ -2372,6 +2372,10 @@ quirk_flags audible volume * bit 25: ``mixer_capture_min_mute`` Similar to bit 24 but for capture streams + * bit 26: ``skip_iface_setup`` + Skip the probe-time interface setup (usb_set_interface, + init_pitch, init_sample_rate); redundant with + snd_usb_endpoint_prepare() at stream-open time =20 This module supports multiple devices, autoprobe and hotplugging. =20 base-commit: 11439c4635edd669ae435eec308f4ab8a0804808 --=20 2.51.0