@@ -14,6 +14,7 @@
#include <linux/module.h>
#include <linux/slab.h>
#include <linux/usb.h>
+#include <linux/usb/quirks.h>
#include <linux/usb/uvc.h>
#include <linux/videodev2.h>
#include <linux/vmalloc.h>
@@ -2232,6 +2233,9 @@ static int uvc_probe(struct usb_interface *intf,
goto error;
}
+ if (dev->quirks & UVC_QUIRK_FORCE_RESUME)
+ udev->quirks &= ~USB_QUIRK_RESET_RESUME;
+
uvc_dbg(dev, PROBE, "UVC device initialized\n");
usb_enable_autosuspend(udev);
return 0;
@@ -2574,6 +2578,33 @@ 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_FORCE_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_FORCE_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_FORCE_RESUME) },
/* Chicony CNF7129 (Asus EEE 100HE) */
{ .match_flags = USB_DEVICE_ID_MATCH_DEVICE
| USB_DEVICE_ID_MATCH_INT_INFO,
@@ -73,6 +73,7 @@
#define UVC_QUIRK_FORCE_Y8 0x00000800
#define UVC_QUIRK_FORCE_BPP 0x00001000
#define UVC_QUIRK_WAKE_AUTOSUSPEND 0x00002000
+#define UVC_QUIRK_FORCE_RESUME 0x00004000
/* Format flags */
#define UVC_FMT_FLAG_COMPRESSED 0x00000001
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") Cc: <stable@vger.kernel.org> Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Cc: Alan Stern <stern@rowland.harvard.edu> Cc: Oliver Neukum <oneukum@suse.com> 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> --- Tested with a Rallybar Mini with an Acer Chromebook Spin 513 --- Changes in v6: Thanks Laurent - Fix subject line. - Move quirk before device init message. - Link to v5: https://lore.kernel.org/r/20240402-rallybar-v5-1-7bdd0fbc51f7@chromium.org Changes in v5: - Update commit message to describe that this is a temp solution. - Link to v4: https://lore.kernel.org/r/20240108-rallybar-v4-1-a7450641e41b@chromium.org Changes in v4: - Include Logi Rally Bar Huddle (Thanks Kyle!) - Link to v3: https://lore.kernel.org/r/20240102-rallybar-v3-1-0ab197ce4aa2@chromium.org Changes in v3: - Move quirk to uvc driver - Link to v2: https://lore.kernel.org/r/20231222-rallybar-v2-1-5849d62a9514@chromium.org Changes in v2: - Add Fixes tag - Add UVC maintainer as Cc - Link to v1: https://lore.kernel.org/r/20231222-rallybar-v1-1-82b2a4d3106f@chromium.org --- drivers/media/usb/uvc/uvc_driver.c | 31 +++++++++++++++++++++++++++++++ drivers/media/usb/uvc/uvcvideo.h | 1 + 2 files changed, 32 insertions(+) --- base-commit: c0f65a7c112b3cfa691cead54bcf24d6cc2182b5 change-id: 20231222-rallybar-19ce0c64d5e6 Best regards,