* [PATCH] ALSA: usb-audio: Add quirk for Logitech HD Pro Webcam c920
@ 2026-10-16 9:44 Nicolas Chauvet
2026-10-16 14:10 ` Takashi Iwai
0 siblings, 1 reply; 2+ messages in thread
From: Nicolas Chauvet @ 2026-10-16 9:44 UTC (permalink / raw)
To: Jaroslav Kysela, Takashi Iwai, Lianqin Hu, Rong Zhang,
Geoffrey D . Bennett, Sebastian Dalfuß
Cc: linux-sound, Nicolas Chauvet
Quirky device sample:
usb 5-2: new high-speed USB device number 2 using xhci_hcd
usb 5-2: New USB device found, idVendor=046d, idProduct=08e5, bcdDevice= 0.0c
usb 5-2: New USB device strings: Mfr=0, Product=2, SerialNumber=0
usb 5-2: Product: HD Pro Webcam C920
...
uvcvideo 5-2:1.0: Found UVC 1.00 device HD Pro Webcam C920 (046d:08e5)
uvcvideo 5-2:1.1: Failed to set UVC probe control : -32 (exp. 26).
usb 5-2: current rate 16000 is different from the runtime rate 32000
usb 5-2: reset high-speed USB device number 2 using xhci_hcd
usb 5-2: current rate 16000 is different from the runtime rate 32000
usb 5-2: current rate 16000 is different from the runtime rate 32000
usb 5-2: current rate 16000 is different from the runtime rate 32000
Signed-off-by: Nicolas Chauvet <kwizart@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 a54fabce7920..c4550975fab3 100644
--- a/sound/usb/quirks.c
+++ b/sound/usb/quirks.c
@@ -2271,6 +2271,8 @@ static const struct usb_audio_quirk_flags_table quirk_flags_table[] = {
QUIRK_FLAG_GET_SAMPLE_RATE | QUIRK_FLAG_CTL_MSG_DELAY_1M),
DEVICE_FLG(0x046d, 0x08ca, /* Logitech Quickcam Fusion */
QUIRK_FLAG_CTL_MSG_DELAY_1M | QUIRK_FLAG_MIC_RES_384),
+ DEVICE_FLG(0x046d, 0x08e5, /* Logitech HD Pro Webcam c920 */
+ QUIRK_FLAG_GET_SAMPLE_RATE),
DEVICE_FLG(0x046d, 0x0991, /* Logitech QuickCam Pro */
QUIRK_FLAG_CTL_MSG_DELAY_1M | QUIRK_FLAG_IGNORE_CTL_ERROR |
QUIRK_FLAG_MIC_RES_384),
--
2.56.0
^ permalink raw reply related [flat|nested] 2+ messages in thread
* Re: [PATCH] ALSA: usb-audio: Add quirk for Logitech HD Pro Webcam c920
2026-10-16 9:44 [PATCH] ALSA: usb-audio: Add quirk for Logitech HD Pro Webcam c920 Nicolas Chauvet
@ 2026-10-16 14:10 ` Takashi Iwai
0 siblings, 0 replies; 2+ messages in thread
From: Takashi Iwai @ 2026-10-16 14:10 UTC (permalink / raw)
To: Nicolas Chauvet
Cc: Jaroslav Kysela, Takashi Iwai, Lianqin Hu, Rong Zhang,
Geoffrey D . Bennett, Sebastian Dalfuß, linux-sound
On Fri, 16 Oct 2026 11:44:04 +0200,
Nicolas Chauvet wrote:
>
> Quirky device sample:
> usb 5-2: new high-speed USB device number 2 using xhci_hcd
> usb 5-2: New USB device found, idVendor=046d, idProduct=08e5, bcdDevice= 0.0c
> usb 5-2: New USB device strings: Mfr=0, Product=2, SerialNumber=0
> usb 5-2: Product: HD Pro Webcam C920
> ...
> uvcvideo 5-2:1.0: Found UVC 1.00 device HD Pro Webcam C920 (046d:08e5)
> uvcvideo 5-2:1.1: Failed to set UVC probe control : -32 (exp. 26).
> usb 5-2: current rate 16000 is different from the runtime rate 32000
> usb 5-2: reset high-speed USB device number 2 using xhci_hcd
> usb 5-2: current rate 16000 is different from the runtime rate 32000
> usb 5-2: current rate 16000 is different from the runtime rate 32000
> usb 5-2: current rate 16000 is different from the runtime rate 32000
>
> Signed-off-by: Nicolas Chauvet <kwizart@gmail.com>
Applied to for-next branch. Thanks.
Takashi
^ permalink raw reply [flat|nested] 2+ messages in thread
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