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 <i@rong.moe>
---
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/sound/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
 
 This module supports multiple devices, autoprobe and hotplugging.
 

base-commit: 11439c4635edd669ae435eec308f4ab8a0804808
-- 
2.51.0

On Mon, 02 Mar 2026 18:32:59 +0100,
Rong Zhang wrote:
> 
> 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 <i@rong.moe>
> ---
> This is separated from https://lore.kernel.org/r/20260301213726.428505-7-i@rong.moe/
> (thanks Takashi Iwai)

Applied now.  Thanks.


Takashi