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[83.28.44.166]) by smtp.gmail.com with ESMTPSA id s2-20020a170906354200b00a293c6cc184sm8979654eja.24.2024.01.18.03.30.29 (version=TLS1_2 cipher=AES128-SHA bits=128/128); Thu, 18 Jan 2024 03:30:30 -0800 (PST) Date: Thu, 18 Jan 2024 12:30:26 +0100 From: =?UTF-8?B?TWljaGHFgg==?= Pecio To: Ricardo Ribalda Cc: Laurent Pinchart , linux-media@vger.kernel.org Subject: Re: [PATCH] media: uvcvideo: extend the bandwdith quirk to USB 3.x Message-ID: <20240118123026.55ef894e@foxbook> In-Reply-To: <20240115005756.536dff4c@foxbook> References: <20240114213518.03e22698@foxbook> <20240115005756.536dff4c@foxbook> Precedence: bulk X-Mailing-List: linux-media@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Hi again, > > Out of curiosity, what camera are you using? Could you also share > > the patch with the quirk? > > I have no idea what camera I am using ;) > > It's some dodgy no-name thing which doesn't even have "made in China" > written on it and reports IDs belonging to a completely different kind > of camera. In a plot twist, I discovered that the original camera has already had this quirk applied 15 years ago. So my ID squatter gets the quirk too. (I think it's a squatter, the old chip was USB 2.0 and this is USB 3.0). Not sure why I believed otherwise and used to set it with modprobe. Maybe I noticed the excessive bandwdith requests made by buggy quirk, then force-enabled the quirk hoping it will solve them, then fixed the quirk to actually get it right. Michal