From mboxrd@z Thu Jan 1 00:00:00 1970 Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.remote-ip=209.85.214.181 ARC-Seal: i=1; d=subspace.kernel.org; s=arc20261015; a=rsa-sha256; cv=none; t=1793664290; b=t6VH1drWPVlSU4h04kgecN4kk3IlPM639UEhG/JZ3DVcuI9Q138fixu0hJG+3GIJbmtd puBC5PNnQT6EAxJ7UynsN1/JMYmPMWF9B7EWyKAK9v3UhuAqD3cWkPSeQXSvUwwj5Uaay hInAb2azpoYWbyyKAzvwtZ806AXQK33AmN7Dm9zpUkDTQhVEWaUBfV0F28sMTUCKarb3t pKT1UI5wjhtU6TkRYBhPN6isqqOoze49cOD3S8eUGXQSsIA3mrdNaphNZjjQDbmWGlJl4 Ey6Ekp8CEGsqiUhjiAaPwrHAm+6m0y5KWjVE9bmnDsEiCmyo93B2o3mWv2J+xAwxMpg== ARC-Message-Signature: i=1; d=subspace.kernel.org; s=arc20261015; a=rsa-sha256; c=relaxed/relaxed; t=1793664290; h=DMARC-Filter:Received:DKIM-Signature:X-Google-DKIM-Signature: X-Forwarded-Encrypted:X-Gm-Message-State:X-Gm-Gg:X-Received:Received: From:To:Cc:Subject:Date:Message-ID:X-Mailer:In-Reply-To:References: MIME-Version:Content-Transfer-Encoding; bh=BRslTI0ynJSL8rFIMfwDZ46YUeqzoiUybS2SxS5DQ24=; b=OzBxxah+vXpdPs/6HUERB0kjeqWA0/9DGqrzIuLFpaVOofc6D0+2ai6PpRTbPhWf6GKh 2nr/pkgVq8hVlvtkwN2JaubwXyX4OiQM/Qm+f5+XlFLgT3A65BYW0iuYnrkkgExbY4JJy DU5UoLjn/elSsAHzDF9FEWUy1roNrgCl76P+fletzHX1u10HmLTNw3W6YVHLG+cmlZm4O CiAUw49YIo+fDT/NDkyBtDFOfbbmcgig6Dc2iS6Oiys8eGo7kW+tzUHX+ovX1wXGGPzDI UJcuWAgw6MdxdbiGle1d2S1WStBeJHOpARlPzjhL3d0vf+Ip7u6ipA9+hGA/GbV4+fg== ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass header.from=gmail.com; spf=pass smtp.mailfrom=gmail.com; dkim=pass header.d=gmail.com header.i=@gmail.com header.a=rsa-sha256 header.s=20260707 header.b=mrnDsFY+; arc=none smtp.remote-ip=209.85.214.181 Received: from mail-pl1-f181.google.com (mail-pl1-f181.google.com [209.85.214.181]) (using TLSv1.3 with cipher TLS_AES_128_GCM_SHA256 (128/128 bits) key-exchange X25519 server-signature ECDSA (prime256v1) server-digest SHA256) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 89143606A331 for ; Tue, 3 Nov 2026 00:04:50 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.4.2 smtp.subspace.kernel.org 89143606A331 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=gmail.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=gmail.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key, unprotected) header.d=gmail.com header.i=@gmail.com header.a=rsa-sha256 header.s=20260707 header.b=mrnDsFY+ Received: by mail-pl1-f181.google.com with SMTP id d9443c01a7336-2e8f2c3ad6bso22038615ad.1 for ; Mon, 02 Nov 2026 16:04:50 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20260707; t=1793664290; x=1794269090; darn=vger.kernel.org; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to:content-type; bh=BRslTI0ynJSL8rFIMfwDZ46YUeqzoiUybS2SxS5DQ24=; b=mrnDsFY+eebB89xZ+DTIafFd39MdDkOLEYtamDNq83jCQfH7RMjlPLE2anoUohaLr8 oTwh53Zbi5SzKKY+nR+3fBGfl1xBauWGkT3Kq2E2hg35H2tnRevGfJYnjygVezf5M/nu BaU8nkfqxQgYA6GiVXCBgeLyM0FHPbiKy1eweNxWcznMkFRk7ob9zF3wfDDLdS8zhKKt dj0KBRSRbTctb+hkNWansuprjxYlK7kBAefQQJtmiWTn1vTQ9ebxi+RxUAlfVAkLRYLe gir6pb43XjiYHjPMrveNT6qMsojM2Gn+2PcZ0ctGQJeEveTSJ5KIDqOuw7+92rJLUFKk EFPA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20260707; t=1793664290; x=1794269090; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-gg:x-gm-message-state:from :to:cc:subject:date:message-id:reply-to:content-type; bh=BRslTI0ynJSL8rFIMfwDZ46YUeqzoiUybS2SxS5DQ24=; b=aP0YA8xSmrCjRupd6pYX9/n230iQwiiS6vOv20b6Ic+pEhUmK9wxOo7RxZbZYhBmQu G0V2tU2yleMgSSNdm6bK/BGI5OmgVM+m4iABPisIxlYzhYSqXecVuA0cD9fIYMgrzDiz /Ot5F0YcAGo+JQCF/eHALECFChPAmhmCAOBVRV0sMwmoLttRvLftngi9/ss6EScz6Mh4 KbsdQdPZGRUr43K+bS34eeYHd5UtNVkxvsvRZLwFnePlruzVpGa4pI1K2O1jr9wzqXAA ZPJDN5UmzwKQP4TGfGBcRxoI2YYxImC1YHtambFpZSgbxbxey1lxxvhAF5sXUPvvTEbq o4sg== X-Forwarded-Encrypted: i=1; AKwUvBzkIcA2W1GjiANvCd5YjTW7Rq2DMP9Aio4F1eg7KSZ30XtErZbLwZxJ9uNh5ivUW+htiv/gUvICz36UUNw=@vger.kernel.org X-Gm-Message-State: APuU4Z+s/zQkFiBHGx2iPc1N/3nKqCJ/SCOqH7YPpMPr51KbM9tgIpCy JnawdwnWrSbHA32kkPDdb++nr2nAEoaHhmCyas7Q1MDGgP96q98UCIer X-Gm-Gg: AYBFou2xB9bOrcU15kjGcHa7L3g4OE40UC7VBgoAUw2jlpWHPBbk/LyQVLLaXWVdR51 Y7sWx7ahPFsAwBM/DMNVt3vW84ZfH1g5BKipmrOi3lBAwjssVF2vQEKDtGXPs7eGpDesAMHg6C2 YXe9oAMJhqtaBv+eT5IYyzPaj282r0ZwHvOxCZD3l2bWbc10RZQQBOmn93skZJ+zxG98XuG+PK5 hnPbGHAricjTMPr11D91W3EPXQHsB0eXuNCuE2LXZW/rNzFzfz8jbktNUEshudr/Hwhx7K+tzgO AT+mEUQ+EmgMPtfuDvU75mwMi0yATzvs702JxQDedUgGivcuM+0/XmfzHLw52f5PSYxXOv462Vq qIT4rpRJ67NcHRZgzMHGU71yau9nL6zYUMznBWHSYT4JuySQPyxix6Fq4g7NtAi1/zwxhbhUKmD beTnDDGSwctzajQD+1HcWy2Fe4sfBfjz9Z8/cEvWKqKVPuG0FLvLxs2s9+ITZ20qjQyMP5qr00Z 37Ai08i6ftWI3mPoqVXEXXW3+TYlBSWOvFaywZzusbiOwQlkYpBgskwpzf2LOymla+AkBkwIVvO CfghNajZePQXVY9oGwLG4jPbdkKl296g2I95OUimW9kJWQ1muY7p6biKT1mmHFRDdTO6GDQZEnC xmu8eIoE4k540hEuhZneB0qwZ2+QyP3KUr2u1K7pE/M3HApo= X-Received: by 2002:a17:90b:380c:b0:3a7:250:333e with SMTP id 98e67ed59e1d1-3ae896f8315mr9974105a91.11.1793664289956; Mon, 02 Nov 2026 16:04:49 -0800 (PST) Received: from localhost.localdomain ([183.96.175.225]) by smtp.gmail.com with ESMTPSA id 98e67ed59e1d1-3b07c6b3493sm1339225a91.13.2026.11.02.16.04.46 (version=TLS1_3 cipher=TLS_CHACHA20_POLY1305_SHA256 bits=256/256); Mon, 02 Nov 2026 16:04:49 -0800 (PST) From: Joonho Lee To: linux-sound@vger.kernel.org Cc: tiwai@suse.de, perex@perex.cz, anton.yakovlev@opensynergy.com, mst@redhat.com, virtualization@lists.linux.dev, linux-kernel@vger.kernel.org, corbet@lwn.net, skhan@linuxfoundation.org, rdunlap@infradead.org, linux-doc@vger.kernel.org, Joonho Lee Subject: [PATCH v12 12/12] docs: describe virtio-sound capture options Date: Tue, 3 Nov 2026 09:04:03 +0900 Message-ID: <20261103000403.67106-13-mynameisjune111@gmail.com> X-Mailer: git-send-email 2.54.0 In-Reply-To: <20261103000403.67106-1-mynameisjune111@gmail.com> References: <20261103000403.67106-1-mynameisjune111@gmail.com> X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Post: List-Help: List-Subscribe: List-Unsubscribe: List-Owner: Precedence: list MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Document the five opt-in capture module parameters introduced by this series. All default to false. Describe the startup-empty, short-payload, packed-status and pause-restart compatibility behavior alongside staging, and require validation with the target device. Assisted-by: LLM Signed-off-by: Joonho Lee --- diff --git a/Documentation/admin-guide/kernel-parameters.txt b/Documentation/admin-guide/kernel-parameters.txt --- a/Documentation/admin-guide/kernel-parameters.txt +++ b/Documentation/admin-guide/kernel-parameters.txt @@ -8328,6 +8328,36 @@ brightness level. default: 1 + virtio_snd.capture_allow_empty= [HW,SOUND] + Retry a bounded number of empty startup capture replies. + Format: + Default: false. Compatibility option for devices that + require staged capture; validate with the target device. + + virtio_snd.capture_allow_short= [HW,SOUND] + Accept non-empty, frame-aligned short capture replies. + Format: + Default: false. Compatibility option for devices that + require staged capture; validate with the target device. + + virtio_snd.capture_packed_status= [HW,SOUND] + Read status immediately after the returned capture data. + Format: + Default: false. Compatibility option for devices that + require staged capture; validate with the target device. + + virtio_snd.capture_pause_restart= [HW,SOUND] + Release and reprepare capture streams across pause. + Format: + Default: false. Compatibility option for devices that + require staged capture; validate with the target device. + + virtio_snd.capture_staging= [HW,SOUND] + Use request-owned buffers for capture data. + Format: + Default: false. Compatibility option for devices that + require staged capture; validate with the target device. + virtio_mmio.device= [VMMIO] Memory mapped virtio (platform) device.