From: Sasha Levin <sashal@kernel.org>
To: stable@vger.kernel.org
Cc: Ricardo Ribalda <ribalda@chromium.org>,
Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
Devinder Khroad <dkhroad@logitech.com>,
Sergey Senozhatsky <senozhatsky@chromium.org>,
Laurent Pinchart <laurent.pinchart@ideasonboard.com>,
Sasha Levin <sashal@kernel.org>
Subject: [PATCH 5.15.y 2/6] media: uvcvideo: Add quirk for Logitech Rally Bar
Date: Wed, 22 Jul 2026 12:07:49 -0400 [thread overview]
Message-ID: <20260722160753.1740303-2-sashal@kernel.org> (raw)
In-Reply-To: <20260722160753.1740303-1-sashal@kernel.org>
From: Ricardo Ribalda <ribalda@chromium.org>
[ Upstream commit 07731053d11f7647d5d8bc23caac997a4d562dfe ]
Logitech Rally Bar devices, despite behaving as UVC cameras, have a
different power management system that the other cameras from Logitech.
USB_QUIRK_RESET_RESUME is applied to all the UVC cameras from Logitech
at the usb core. Unfortunately, USB_QUIRK_RESET_RESUME causes undesired
USB disconnects in the Rally Bar that make them completely unusable.
There is an open discussion about if we should fix this in the core or
add a quirk in the UVC driver. In order to enable this hardware, let's
land this patch first, and we can revert it later if there is a
different conclusion.
Fixes: e387ef5c47dd ("usb: Add USB_QUIRK_RESET_RESUME for all Logitech UVC webcams")
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Reviewed-by: Devinder Khroad <dkhroad@logitech.com>
Reviewed-by: Sergey Senozhatsky <senozhatsky@chromium.org>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Ricardo Ribalda <ribalda@chromium.org>
Link: https://lore.kernel.org/r/20240404-rallybar-v6-1-6d67bb6b69af@chromium.org
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Stable-dep-of: f078966ca1fb ("media: uvcvideo: Fix sequence number when no EOF")
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/media/usb/uvc/uvc_driver.c | 31 ++++++++++++++++++++++++++++++
drivers/media/usb/uvc/uvcvideo.h | 1 +
2 files changed, 32 insertions(+)
diff --git a/drivers/media/usb/uvc/uvc_driver.c b/drivers/media/usb/uvc/uvc_driver.c
index 1cd68501fdc505..64de4c9863c59e 100644
--- a/drivers/media/usb/uvc/uvc_driver.c
+++ b/drivers/media/usb/uvc/uvc_driver.c
@@ -13,6 +13,7 @@
#include <linux/module.h>
#include <linux/slab.h>
#include <linux/usb.h>
+#include <linux/usb/quirks.h>
#include <linux/videodev2.h>
#include <linux/vmalloc.h>
#include <linux/wait.h>
@@ -2562,6 +2563,9 @@ static int uvc_probe(struct usb_interface *intf,
goto error;
}
+ if (dev->quirks & UVC_QUIRK_NO_RESET_RESUME)
+ udev->quirks &= ~USB_QUIRK_RESET_RESUME;
+
uvc_dbg(dev, PROBE, "UVC device initialized\n");
usb_enable_autosuspend(udev);
return 0;
@@ -2864,6 +2868,33 @@ static const struct usb_device_id uvc_ids[] = {
.bInterfaceSubClass = 1,
.bInterfaceProtocol = 0,
.driver_info = UVC_INFO_QUIRK(UVC_QUIRK_RESTORE_CTRLS_ON_INIT) },
+ /* Logitech Rally Bar Huddle */
+ { .match_flags = USB_DEVICE_ID_MATCH_DEVICE
+ | USB_DEVICE_ID_MATCH_INT_INFO,
+ .idVendor = 0x046d,
+ .idProduct = 0x087c,
+ .bInterfaceClass = USB_CLASS_VIDEO,
+ .bInterfaceSubClass = 1,
+ .bInterfaceProtocol = 0,
+ .driver_info = UVC_INFO_QUIRK(UVC_QUIRK_NO_RESET_RESUME) },
+ /* Logitech Rally Bar */
+ { .match_flags = USB_DEVICE_ID_MATCH_DEVICE
+ | USB_DEVICE_ID_MATCH_INT_INFO,
+ .idVendor = 0x046d,
+ .idProduct = 0x089b,
+ .bInterfaceClass = USB_CLASS_VIDEO,
+ .bInterfaceSubClass = 1,
+ .bInterfaceProtocol = 0,
+ .driver_info = UVC_INFO_QUIRK(UVC_QUIRK_NO_RESET_RESUME) },
+ /* Logitech Rally Bar Mini */
+ { .match_flags = USB_DEVICE_ID_MATCH_DEVICE
+ | USB_DEVICE_ID_MATCH_INT_INFO,
+ .idVendor = 0x046d,
+ .idProduct = 0x08d3,
+ .bInterfaceClass = USB_CLASS_VIDEO,
+ .bInterfaceSubClass = 1,
+ .bInterfaceProtocol = 0,
+ .driver_info = UVC_INFO_QUIRK(UVC_QUIRK_NO_RESET_RESUME) },
/* Chicony CNF7129 (Asus EEE 100HE) */
{ .match_flags = USB_DEVICE_ID_MATCH_DEVICE
| USB_DEVICE_ID_MATCH_INT_INFO,
diff --git a/drivers/media/usb/uvc/uvcvideo.h b/drivers/media/usb/uvc/uvcvideo.h
index be4b746d902c63..304b7679e50c44 100644
--- a/drivers/media/usb/uvc/uvcvideo.h
+++ b/drivers/media/usb/uvc/uvcvideo.h
@@ -212,6 +212,7 @@
#define UVC_QUIRK_FORCE_Y8 0x00000800
#define UVC_QUIRK_FORCE_BPP 0x00001000
#define UVC_QUIRK_WAKE_AUTOSUSPEND 0x00002000
+#define UVC_QUIRK_NO_RESET_RESUME 0x00004000
/* Format flags */
#define UVC_FMT_FLAG_COMPRESSED 0x00000001
--
2.53.0
next prev parent reply other threads:[~2026-07-22 16:07 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-07-20 9:51 FAILED: patch "[PATCH] media: uvcvideo: Fix sequence number when no EOF" failed to apply to 5.15-stable tree gregkh
2026-07-22 16:07 ` [PATCH 5.15.y 1/6] media: Add common header file with JPEG marker definitions Sasha Levin
2026-07-22 16:07 ` Sasha Levin [this message]
2026-07-22 16:07 ` [PATCH 5.15.y 3/6] media: uvcvideo: Disable autosuspend for Insta360 Link Sasha Levin
2026-07-22 16:07 ` [PATCH 5.15.y 4/6] media: uvcvideo: Quirk for invalid dev_sof in Logitech C922 Sasha Levin
2026-07-22 16:07 ` [PATCH 5.15.y 5/6] media: uvcvideo: Implement dual stream quirk to fix loss of usb packets Sasha Levin
2026-07-22 16:07 ` [PATCH 5.15.y 6/6] media: uvcvideo: Fix sequence number when no EOF Sasha Levin
2026-07-31 10:48 ` [PATCH 5.15.y 1/2] media: uvcvideo: Implement dual stream quirk to fix loss of usb packets Ricardo Ribalda
2026-07-31 10:48 ` [PATCH 5.15.y 2/2] media: uvcvideo: Fix sequence number when no EOF Ricardo Ribalda
2026-08-01 1:40 ` [PATCH 5.15.y 1/2] media: uvcvideo: Implement dual stream quirk to fix loss of usb packets Sasha Levin
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