[PATCH v2] ALSA: usb-audio: Add iface reset and delay quirk for JKY Technology Q2A

From: 胡连勤

Date: Fri Jul 24 2026 - 08:46:44 EST


Setting up the interface when suspended/resuming fails on this card.
Adding a reset and delay quirk will eliminate this problem.

Note: This device's VID conflicts with Apple's (0x05ac).

usb 1-1: New USB device found, idVendor=05ac, idProduct=110b
usb 1-1: New USB device strings: Mfr=1, Product=2, SerialNumber=3
usb 1-1: Product: Q2A
usb 1-1: Manufacturer: JKY Technology
usb 1-1: SerialNumber: 330270D2251225

Suggested-by: Rong Zhang <i@xxxxxxxx>
Signed-off-by: Lianqin Hu <hulianqin@xxxxxxxx>
---

Changes in v2:
- Remove matching Product
- manufacturer,product (new line)
- Add VID conflict information to code comments
- Link to v1: https://lore.kernel.org/all/TYUPR06MB6217BD7BF1AE9B308295FFFCD2CF2@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx/

sound/usb/quirks.c | 3 +++
1 file changed, 3 insertions(+)

diff --git a/sound/usb/quirks.c b/sound/usb/quirks.c
index 0de7c9d94259..13863e966347 100644
--- a/sound/usb/quirks.c
+++ b/sound/usb/quirks.c
@@ -2200,6 +2200,9 @@ struct usb_audio_quirk_flags_table {

static const struct usb_audio_quirk_flags_table quirk_flags_table[] = {
/* Device and string descriptor matches */
+ DEVICE_STRING_FLG(0x05ac, 0x110b, /* VID conflicts with Apple */
+ "JKY Technology", NULL, /* Q2A */
+ QUIRK_FLAG_FORCE_IFACE_RESET | QUIRK_FLAG_IFACE_DELAY),

/* Device matches */
DEVICE_FLG(0x001f, 0x0b21, /* AB13X USB Audio */
--
2.39.0