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[83.28.48.202]) by smtp.gmail.com with ESMTPSA id 4fb4d7f45d1cf-615a8ff9fd1sm752758a12.44.2025.07.31.01.27.31 (version=TLS1_2 cipher=AES128-SHA bits=128/128); Thu, 31 Jul 2025 01:27:31 -0700 (PDT) Date: Thu, 31 Jul 2025 10:27:28 +0200 From: =?UTF-8?B?TWljaGHFgg==?= Pecio To: Bob Ham Cc: linux-usb@vger.kernel.org Subject: Re: Audio interface causing "xhci_hcd ... WARN: buffer overrun event" messages Message-ID: <20250731102728.503cd612@foxbook> In-Reply-To: <20250731101720.5d10a8f1@foxbook> References: <20250731101720.5d10a8f1@foxbook> Precedence: bulk X-Mailing-List: linux-usb@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: quoted-printable On Thu, 31 Jul 2025 10:17:20 +0200, Micha=C5=82 Pecio wrote: > "ep 2" means "ep index 2", which is USB endpoint 0x81 aka EP 1 IN. > So this is caused by recording, or maybe by playback while recording, > but not by playback alone. Apologies, I forgot that some UAC modes may use additional "feedback" endpoints so it could still be a playback thing. Can you post "lsusb -v" for this device?