linux-kernel - Re: [PATCH v4] media: ucvideo: Add quirk for Logitech Rally Bar

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Date: Tue, 9 Jan 2024 21:48:38 +0900
From: Sergey Senozhatsky <senozhatsky@...omium.org>
To: Ricardo Ribalda <ribalda@...omium.org>
Cc: Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	Laurent Pinchart <laurent.pinchart@...asonboard.com>,
	Alan Stern <stern@...land.harvard.edu>,
	Mauro Carvalho Chehab <mchehab@...nel.org>,
	linux-usb@...r.kernel.org, linux-kernel@...r.kernel.org,
	linux-media@...r.kernel.org, stable@...r.kernel.org
Subject: Re: [PATCH v4] media: ucvideo: Add quirk for Logitech Rally Bar

On (24/01/08 08:17), Ricardo Ribalda wrote:
> 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, that make them completely unusable.
> 
> Instead of creating a list for this family of devices in the core, let's
> create a quirk in the UVC driver.
> 
> Fixes: e387ef5c47dd ("usb: Add USB_QUIRK_RESET_RESUME for all Logitech UVC webcams")
> Cc: stable@...r.kernel.org
> Cc: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
> Cc: Alan Stern <stern@...land.harvard.edu>
> Acked-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
> Signed-off-by: Ricardo Ribalda <ribalda@...omium.org>

Reviewed-by: Sergey Senozhatsky <senozhatsky@...omium.org>