* [PATCH] ALSA: usb-audio: Add quirk entries for NexiGo N930W webcam
@ 2026-04-17 1:01 Johnathan Penberthy
2026-04-17 7:50 ` Takashi Iwai
0 siblings, 1 reply; 2+ messages in thread
From: Johnathan Penberthy @ 2026-04-17 1:01 UTC (permalink / raw)
To: Takashi Iwai
Cc: Jaroslav Kysela, linux-sound, linux-kernel, Johnathan Penberthy
The NexiGo N930W 60fps webcam (USB ID 3443:930d) hits the same
'cannot get freq at ep 0x84' error in snd-usb-audio as its sibling
N930AF (1bcf:2283). Without QUIRK_FLAG_GET_SAMPLE_RATE the ADC clock
is never configured and the microphone streams only zero samples.
Testing on Linux 6.17 with QUIRK_FLAG_GET_SAMPLE_RATE |
QUIRK_FLAG_MIC_RES_16 (via quirk_alias=3443930d:1bcf2283) confirmed
the microphone captures real audio after a cold USB re-enumeration.
Adding a native quirk_flags_table entry avoids the alias workaround.
Signed-off-by: Johnathan Penberthy <johnathan.penberthy@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 8fc36d1cf..7b803ad58 100644
--- a/sound/usb/quirks.c
+++ b/sound/usb/quirks.c
@@ -2474,6 +2474,8 @@ static const struct usb_audio_quirk_flags_table quirk_flags_table[] = {
QUIRK_FLAG_ITF_USB_DSD_DAC | QUIRK_FLAG_CTL_MSG_DELAY),
DEVICE_FLG(0x339b, 0x3a07, /* Synaptics HONOR USB-C HEADSET */
QUIRK_FLAG_MIXER_PLAYBACK_MIN_MUTE),
+ DEVICE_FLG(0x3443, 0x930d, /* NexiGo N930W 60fps Webcam */
+ QUIRK_FLAG_GET_SAMPLE_RATE | QUIRK_FLAG_MIC_RES_16),
DEVICE_FLG(0x413c, 0xa506, /* Dell AE515 sound bar */
QUIRK_FLAG_GET_SAMPLE_RATE),
DEVICE_FLG(0x534d, 0x0021, /* MacroSilicon MS2100/MS2106 */
--
2.43.0
^ permalink raw reply related [flat|nested] 2+ messages in thread
* Re: [PATCH] ALSA: usb-audio: Add quirk entries for NexiGo N930W webcam
2026-04-17 1:01 [PATCH] ALSA: usb-audio: Add quirk entries for NexiGo N930W webcam Johnathan Penberthy
@ 2026-04-17 7:50 ` Takashi Iwai
0 siblings, 0 replies; 2+ messages in thread
From: Takashi Iwai @ 2026-04-17 7:50 UTC (permalink / raw)
To: Johnathan Penberthy
Cc: Takashi Iwai, Jaroslav Kysela, linux-sound, linux-kernel
On Fri, 17 Apr 2026 03:01:23 +0200,
Johnathan Penberthy wrote:
>
> The NexiGo N930W 60fps webcam (USB ID 3443:930d) hits the same
> 'cannot get freq at ep 0x84' error in snd-usb-audio as its sibling
> N930AF (1bcf:2283). Without QUIRK_FLAG_GET_SAMPLE_RATE the ADC clock
> is never configured and the microphone streams only zero samples.
>
> Testing on Linux 6.17 with QUIRK_FLAG_GET_SAMPLE_RATE |
> QUIRK_FLAG_MIC_RES_16 (via quirk_alias=3443930d:1bcf2283) confirmed
> the microphone captures real audio after a cold USB re-enumeration.
> Adding a native quirk_flags_table entry avoids the alias workaround.
>
> Signed-off-by: Johnathan Penberthy <johnathan.penberthy@gmail.com>
Applied now. Thanks.
Takashi
^ permalink raw reply [flat|nested] 2+ messages in thread
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