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 X-Spam-Level: X-Spam-Status: No, score=-4.2 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS autolearn=no autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 7A08CC47094 for ; Mon, 7 Jun 2021 15:16:50 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 6417461108 for ; Mon, 7 Jun 2021 15:16:50 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230242AbhFGPSl (ORCPT ); Mon, 7 Jun 2021 11:18:41 -0400 Received: from mail.kernel.org ([198.145.29.99]:56338 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230212AbhFGPSj (ORCPT ); Mon, 7 Jun 2021 11:18:39 -0400 Received: by mail.kernel.org (Postfix) with ESMTPS id 76A4060C3D for ; Mon, 7 Jun 2021 15:16:48 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1623079008; bh=0dVRL0y64/o/YsdpkbD3Mb4dL3iTk1E4MF20pAAjeHo=; h=From:To:Subject:Date:In-Reply-To:References:From; b=qBTRAhll7cz0+Mfy6lRH+NgFVgqGiWd5tn+ueloykGouNYFLhWOIV8BNIf5QxqzXP LcIwfysJX7kV1HOA5fG/OYoDdsfIwAtvwuScu6riKK78hqPJMDNyrbZcDyImT9uaYH k0BNwA5/w3G8ZcGdW6YikBln6be92xxXsOaRiEDamuG2VIJb/4AiNMZQxEzVVWS0QM Gso2OJmbnRYJWKoJmu7PFesUuAnMxErd8Kane63GLvbUfh81PIOEEusdmt2vMQssSp I4DWwDoQ5X8VmxZEGnVk8fWhC4vFnxxP5cbe3Uz4QgQJD1MfBnonfYr6ViExjold9d bgFPz19YYZCWg== From: bugzilla-daemon@bugzilla.kernel.org To: linux-usb@vger.kernel.org Subject: [Bug 212955] Possible kernel regression USB2 (not USB3) port EDIROL UA-101 (in USB 1.1 mode, not USB2) error -110 Date: Mon, 07 Jun 2021 15:16:48 +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=3D212955 --- Comment #22 from Alan Stern (stern@rowland.harvard.edu) --- Using two different drivers would definitely explain the different patterns= of communication with the device in your two usbmon traces. But it doesn't explain why, with one of the drivers, the device seems to st= op responding when used with EHCI (and works okay with xHCI!). Maybe this is caused by a bug in the device's firmware. It that's true, changing the communication pattern might work around the problem. --=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.=