Document the five opt-in virtio_snd capture module parameters. State
that capture_allow_empty, capture_allow_short, capture_packed_status and
capture_pause_restart require capture_staging, and use the ALSA kernel
parameter restriction tag for each entry.
Signed-off-by: Joonho Lee <[email protected]>

---
Documentation/admin-guide/kernel-parameters.txt |   29 +++++++++++++++++++++++
 1 file changed, 29 insertions(+)

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
@@ -8344,6 +8344,35 @@
 
                        Can be used multiple times for multiple devices.
 
+       virtio_snd.capture_allow_empty= [HW,ALSA]
+                       Retry a bounded number of empty startup capture replies
+                       when virtio_snd.capture_staging=1.
+                       Format: <bool>
+                       Default: false. Validate with the target device.
+
+       virtio_snd.capture_allow_short= [HW,ALSA]
+                       Accept non-empty, frame-aligned short capture replies
+                       when virtio_snd.capture_staging=1.
+                       Format: <bool>
+                       Default: false. Validate with the target device.
+
+       virtio_snd.capture_packed_status= [HW,ALSA]
+                       Read status immediately after the returned capture data
+                       when virtio_snd.capture_staging=1.
+                       Format: <bool>
+                       Default: false. Validate with the target device.
+
+       virtio_snd.capture_pause_restart= [HW,ALSA]
+                       Release and reprepare capture streams across pause when
+                       virtio_snd.capture_staging=1.
+                       Format: <bool>
+                       Default: false. Validate with the target device.
+
+       virtio_snd.capture_staging= [HW,ALSA]
+                       Enable staged capture using request-owned buffers.
+                       Format: <bool>
+                       Default: false. Validate with the target device.
+
        vga=            [BOOT,X86-32] Select a particular video mode
                        See Documentation/arch/x86/boot.rst and
                        Documentation/admin-guide/svga.rst.

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