From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id A6634C7EE23 for ; Tue, 28 Feb 2023 02:14:02 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229471AbjB1COC (ORCPT ); Mon, 27 Feb 2023 21:14:02 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:38958 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229533AbjB1COA (ORCPT ); Mon, 27 Feb 2023 21:14:00 -0500 Received: from dfw.source.kernel.org (dfw.source.kernel.org [IPv6:2604:1380:4641:c500::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id C04B74233 for ; Mon, 27 Feb 2023 18:13:56 -0800 (PST) Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by dfw.source.kernel.org (Postfix) with ESMTPS id 664B960F80 for ; Tue, 28 Feb 2023 02:13:56 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPS id C33F6C433D2 for ; Tue, 28 Feb 2023 02:13:55 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1677550435; bh=EZvVBxt4SRJ/eXFfA0zOcoKk5+yN3/ZaZ5bvkaEwDF4=; h=From:To:Subject:Date:In-Reply-To:References:From; b=NL2f1HGN5yMNy54JBO/xMXlzT0gEjUiOdvFcp+sEdGC4fVY6wOcbT1Cel09MuIEmF Hokvd7DxmRkWQ2eetJEHnCnLG3kyZhv/WOyBi3GeQjRRHXRQS+iIAwusHWmYArlivi RWXRLm3j1KIFgbEewxPSb3FggEGDDWknpxm7apQZmttpMnNHHY83T0UjHYF6njdYLM WEvg9MLLbintHoazv6n/iMj4J6ZkVi+mlxs3tBt0rXYl37wqdl/Q2cDl0HcD/0TRNI 7jwb7Cb5HbRWfaG9KYXrkI2KpBGtet2JW3Zx3VYABm7wHmmSxnQPXJ32uht2xUkkCj +SV0987THZ97w== Received: by aws-us-west-2-korg-bugzilla-1.web.codeaurora.org (Postfix, from userid 48) id AE2A6C43141; Tue, 28 Feb 2023 02:13:55 +0000 (UTC) From: bugzilla-daemon@kernel.org To: linux-usb@vger.kernel.org Subject: [Bug 217089] xone23c mixer Date: Tue, 28 Feb 2023 02:13:55 +0000 X-Bugzilla-Reason: None X-Bugzilla-Type: changed X-Bugzilla-Watch-Reason: AssignedTo drivers_usb@kernel-bugs.kernel.org X-Bugzilla-Product: Drivers X-Bugzilla-Component: USB X-Bugzilla-Version: 2.5 X-Bugzilla-Keywords: X-Bugzilla-Severity: normal X-Bugzilla-Who: stern@rowland.harvard.edu X-Bugzilla-Status: NEW X-Bugzilla-Resolution: X-Bugzilla-Priority: P1 X-Bugzilla-Assigned-To: drivers_usb@kernel-bugs.kernel.org X-Bugzilla-Flags: X-Bugzilla-Changed-Fields: Message-ID: In-Reply-To: References: Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable X-Bugzilla-URL: https://bugzilla.kernel.org/ Auto-Submitted: auto-generated MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-usb@vger.kernel.org https://bugzilla.kernel.org/show_bug.cgi?id=3D217089 --- Comment #10 from Alan Stern (stern@rowland.harvard.edu) --- The attachments are pretty clear. The most likely explanation is that something gets sent to the device under one kernel but not the other, somet= hing which causes it to change its firmware. The next step is to collect a usbmon trace showing what happens when the de= vice is plugged in. As root, do: cat /sys/kernel/debug/usb/usbmon/1u >FILENAME before plugging in the device. A few seconds after the Xone is plugged in, kill the command with ^C and attach the output file to this bug report. Do this for both of the kernels, and we'll see if anything is different between them. --=20 You may reply to this email to add a comment. You are receiving this mail because: You are watching the assignee of the bug.=