linux-kernel - ALSA: usb-audio: Add delay quirk for MOONDROP Moonriver2 Ti

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Message-ID:
 <TYUPR06MB6217CD0C82B11AD3E659D174D28DA@TYUPR06MB6217.apcprd06.prod.outlook.com>
Date: Fri, 16 Jan 2026 04:03:48 +0000
From: 胡连勤 <hulianqin@...o.com>
To: "perex@...ex.cz" <perex@...ex.cz>, "tiwai@...e.com" <tiwai@...e.com>,
	"cryolitia@...ontech.com" <cryolitia@...ontech.com>, "pav@....fi"
	<pav@....fi>, "jussi@...arnerd.net" <jussi@...arnerd.net>,
	"roy.vegard.ovesen@...il.com" <roy.vegard.ovesen@...il.com>
CC: "linux-sound@...r.kernel.org" <linux-sound@...r.kernel.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	胡连勤 <hulianqin@...o.com>
Subject: ALSA: usb-audio: Add delay quirk for MOONDROP Moonriver2 Ti

Audio control requests that sets sampling frequency sometimes fail on
this card. Adding delay between control messages eliminates that problem.

usb 1-1: New USB device found, idVendor=2fc6, idProduct=f06b
usb 1-1: New USB device strings: Mfr=1, Product=2, SerialNumber=3
usb 1-1: Product: MOONDROP Moonriver2 Ti
usb 1-1: Manufacturer: MOONDROP
usb 1-1: SerialNumber: MOONDROP Moonriver2 Ti

Signed-off-by: Lianqin Hu <hulianqin@...o.com>
---
 sound/usb/quirks.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/sound/usb/quirks.c b/sound/usb/quirks.c
index f38330b095e9..2c51b58a5f15 100644
--- a/sound/usb/quirks.c
+++ b/sound/usb/quirks.c
@@ -2392,6 +2392,8 @@ static const struct usb_audio_quirk_flags_table quirk_flags_table[] = {
 		   QUIRK_FLAG_MIXER_PLAYBACK_MIN_MUTE),
 	DEVICE_FLG(0x2fc6, 0xf0b7, /* iBasso DC07 Pro */
 		   QUIRK_FLAG_CTL_MSG_DELAY_1M),
+	DEVICE_FLG(0x2fc6, 0xf06b, /* MOONDROP Moonriver2 Ti */
+		   QUIRK_FLAG_CTL_MSG_DELAY),
 	DEVICE_FLG(0x30be, 0x0101, /* Schiit Hel */
 		   QUIRK_FLAG_IGNORE_CTL_ERROR),
 	DEVICE_FLG(0x3255, 0x0000, /* Luxman D-10X */
-- 
2.39.0