* [PATCH] ALSA: usb-audio: Add delay quirk for HIK camera
@ 2026-10-29 3:28 Kuangyi Chiang
2026-10-31 15:45 ` Takashi Iwai
0 siblings, 1 reply; 2+ messages in thread
From: Kuangyi Chiang @ 2026-10-29 3:28 UTC (permalink / raw)
To: perex, tiwai; +Cc: linux-sound, linux-kernel, ki.chiang65
Audio control requests that set the volume sometimes time out on the
HIK 1080P Camera (2bdf:0280).
Adding a 1ms delay between control messages avoids the issue. Apply
QUIRK_FLAG_CTL_MSG_DELAY_1M for this device.
Signed-off-by: Kuangyi Chiang <ki.chiang65@gmail.com>
---
sound/usb/quirks.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/sound/usb/quirks.c b/sound/usb/quirks.c
index a54fabc..d2920bd 100644
--- a/sound/usb/quirks.c
+++ b/sound/usb/quirks.c
@@ -2532,6 +2532,8 @@ static const struct usb_audio_quirk_flags_table quirk_flags_table[] = {
QUIRK_FLAG_GENERIC_IMPLICIT_FB),
DEVICE_FLG(0x2b73, 0x0047, /* AlphaTheta EUPHONIA */
QUIRK_FLAG_PLAYBACK_FIRST | QUIRK_FLAG_GENERIC_IMPLICIT_FB),
+ DEVICE_FLG(0x2bdf, 0x0280, /* HIK 1080P Camera */
+ QUIRK_FLAG_CTL_MSG_DELAY_1M),
DEVICE_FLG(0x2d95, 0x8011, /* VIVO USB-C HEADSET */
QUIRK_FLAG_CTL_MSG_DELAY_1M),
DEVICE_FLG(0x2d95, 0x8021, /* VIVO USB-C-XE710 HEADSET */
--
2.25.1
^ permalink raw reply [flat|nested] 2+ messages in thread
* Re: [PATCH] ALSA: usb-audio: Add delay quirk for HIK camera
2026-10-29 3:28 [PATCH] ALSA: usb-audio: Add delay quirk for HIK camera Kuangyi Chiang
@ 2026-10-31 15:45 ` Takashi Iwai
0 siblings, 0 replies; 2+ messages in thread
From: Takashi Iwai @ 2026-10-31 15:45 UTC (permalink / raw)
To: Kuangyi Chiang; +Cc: perex, tiwai, linux-sound, linux-kernel
On Thu, 29 Oct 2026 04:28:56 +0100,
Kuangyi Chiang wrote:
>
> Audio control requests that set the volume sometimes time out on the
> HIK 1080P Camera (2bdf:0280).
>
> Adding a 1ms delay between control messages avoids the issue. Apply
> QUIRK_FLAG_CTL_MSG_DELAY_1M for this device.
>
> Signed-off-by: Kuangyi Chiang <ki.chiang65@gmail.com>
Applied now. Thanks.
Takashi
^ permalink raw reply [flat|nested] 2+ messages in thread
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