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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: virtualization@lists.linux.dev 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.