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Message-Id: <20240924-uvc-quanta-v1-1-2de023863767@chromium.org>
Date: Tue, 24 Sep 2024 13:33:29 +0000
From: Ricardo Ribalda <ribalda@...omium.org>
To: Laurent Pinchart <laurent.pinchart@...asonboard.com>,
Mauro Carvalho Chehab <mchehab@...nel.org>
Cc: linux-media@...r.kernel.org, linux-kernel@...r.kernel.org,
Giuliano Lotta <giuliano.lotta@...il.com>,
Ricardo Ribalda <ribalda@...omium.org>
Subject: [PATCH] media: uvcvideo: Force UVC version to 1.0a for 0408:4033
The Quanta ACER HD User Facing camera reports a UVC 1.50 version, but
implements UVC 1.0a as shown by the UVC probe control being 26 bytes
long. Force the UVC version for that device.
Reported-by: Giuliano Lotta <giuliano.lotta@...il.com>
Closes: https://lore.kernel.org/linux-media/fce4f906-d69b-417d-9f13-bf69fe5c81e3@koyu.space/
Signed-off-by: Ricardo Ribalda <ribalda@...omium.org>
---
drivers/media/usb/uvc/uvc_driver.c | 11 +++++++++++
1 file changed, 11 insertions(+)
diff --git a/drivers/media/usb/uvc/uvc_driver.c b/drivers/media/usb/uvc/uvc_driver.c
index f0febdc08c2d..cc62bdf77c08 100644
--- a/drivers/media/usb/uvc/uvc_driver.c
+++ b/drivers/media/usb/uvc/uvc_driver.c
@@ -2431,6 +2431,17 @@ static const struct uvc_device_info uvc_quirk_force_y8 = {
*/
static const struct usb_device_id uvc_ids[] = {
/* Quanta ACER HD User Facing */
+ { .match_flags = USB_DEVICE_ID_MATCH_DEVICE
+ | USB_DEVICE_ID_MATCH_INT_INFO,
+ .idVendor = 0x0408,
+ .idProduct = 0x4033,
+ .bInterfaceClass = USB_CLASS_VIDEO,
+ .bInterfaceSubClass = 1,
+ .bInterfaceProtocol = UVC_PC_PROTOCOL_15,
+ .driver_info = (kernel_ulong_t)&(const struct uvc_device_info){
+ .uvc_version = 0x010a,
+ } },
+ /* Quanta ACER HD User Facing */
{ .match_flags = USB_DEVICE_ID_MATCH_DEVICE
| USB_DEVICE_ID_MATCH_INT_INFO,
.idVendor = 0x0408,
---
base-commit: abf2050f51fdca0fd146388f83cddd95a57a008d
change-id: 20240924-uvc-quanta-52a120a277fe
Best regards,
--
Ricardo Ribalda <ribalda@...omium.org>
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