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From: Nicolas Chauvet <kwizart@gmail.com>
To: "Jaroslav Kysela" <perex@perex.cz>,
	"Takashi Iwai" <tiwai@suse.com>,
	"Lianqin Hu" <hulianqin@vivo.com>, "Rong Zhang" <i@rong.moe>,
	"Geoffrey D . Bennett" <g@b4.vu>, "Sebastian Dalfuß" <sd@sedf.de>
Cc: linux-sound@vger.kernel.org, Nicolas Chauvet <kwizart@gmail.com>
Subject: [PATCH] ALSA: usb-audio: Add quirk for Logitech HD Pro Webcam c920
Date: Fri, 16 Oct 2026 11:44:04 +0200	[thread overview]
Message-ID: <20261016094404.13802-1-kwizart@gmail.com> (raw)

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


             reply	other threads:[~2026-10-16  9:44 UTC|newest]

Thread overview: 2+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2026-10-16  9:44 Nicolas Chauvet [this message]
2026-10-16 14:10 ` [PATCH] ALSA: usb-audio: Add quirk for Logitech HD Pro Webcam c920 Takashi Iwai

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