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 41D75C433F5 for ; Tue, 21 Dec 2021 08:07:41 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S235418AbhLUIHk (ORCPT ); Tue, 21 Dec 2021 03:07:40 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:42230 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S235383AbhLUIHk (ORCPT ); Tue, 21 Dec 2021 03:07:40 -0500 Received: from ams.source.kernel.org (ams.source.kernel.org [IPv6:2604:1380:4601:e00::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id D633CC061574 for ; Tue, 21 Dec 2021 00:07:39 -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 ams.source.kernel.org (Postfix) with ESMTPS id 9BFD3B811D7 for ; Tue, 21 Dec 2021 08:07:38 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPS id 5B13AC36AE2 for ; Tue, 21 Dec 2021 08:07:37 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1640074057; bh=stUEuPAg9JGuYo1coDuLtuQSmONB9GGkW4GAIYM9fOQ=; h=From:To:Subject:Date:In-Reply-To:References:From; b=Tfoku9EzgYCrNJAigWo89v29EVDi+WPEJS0pEUjuwhCXH9qhA5tf2yE0rftXmJLOb IvFqO0+U0SbT7rRZR/SYC9kk+nX7Nt27tTv7WwCLuWaQsYeof/CG3fTdFwvKetHZWe ML6pPe3ryaR4m0NYr32fpHG4hctgLBjJ7uSIpwHmxyN+RuzgHfH4Ui9NqyR87O+tw4 DQoU0CHRgcTSTUI+wJbVfube4pQpVhsmGWbVCDMDgGXX7u8Nc3rt79bGZWt6HWgRgC It96+vLZvX+47I0VJsGf/liEBbcZv8pJognY3GBX79AhEWMvTpSRreuEB7KauK/izC /ePw34BbRspiw== Received: by pdx-korg-bugzilla-2.web.codeaurora.org (Postfix, from userid 48) id 3EB2A61106; Tue, 21 Dec 2021 08:07:37 +0000 (UTC) From: bugzilla-daemon@bugzilla.kernel.org To: linux-usb@vger.kernel.org Subject: [Bug 215361] SL-6000 zaurus USB error - 'bad CDC descriptors' Date: Tue, 21 Dec 2021 08:07:37 +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: low X-Bugzilla-Who: bids.7405@bigpond.com 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=3D215361 --- Comment #4 from Ross Maynard (bids.7405@bigpond.com) --- Hi Greg, 1. I tried connecting the SL-6000 in kernel 5.14.10, but got the same error: usb 1-1: New USB device found, idVendor=3D04dd, idProduct=3D9032, bcdDevice= =3D=20 0.00 usb 1-1: New USB device strings: Mfr=3D1, Product=3D2, SerialNumber=3D0 usb 1-1: Product: SL-6000 usb 1-1: Manufacturer: Sharp usb 1-1: bad CDC descriptors usbcore: registered new interface driver cdc_ether As a side note, I also tried it with my SL-5600 with the same result. 2. The latest kernel I could find that would connect my Zaurus was=20 2.6.38. I did get the "bad CDC descriptors" message, but the zaurus=20 module loaded anyway: usb 1-1: bad CDC descriptors usbcore: registered new interface driver cdc_ether zaurus 1-1:1.0: usb0: register 'zaurus' at usb-0000:00:14.0-1,=20 pseudo-MDLM (BLAN) device, ea:30:12:ff:59:20 usbcore: registered new interface driver zaurus 3. I then tested with kernel 3.0. That did not work, and the zaurus=20 module did not load: usb 1-1: new full speed USB device number 4 using xhci_hcd usb 1-1: bad CDC descriptors usbcore: registered new interface driver cdc_ether I am wondering if there was a change in the cdc_ether or zaurus modules=20 that caused it to stop working in 3.0. On 20/12/21 7:37 pm, bugzilla-daemon@bugzilla.kernel.org wrote: > https://bugzilla.kernel.org/show_bug.cgi?id=3D215361 > > --- Comment #3 from Greg Kroah-Hartman (greg@kroah.com) --- > On Sun, Dec 19, 2021 at 06:14:00AM +0000, bugzilla-daemon@bugzilla.kernel= .org > wrote: >> A 'bad CDC descriptors' error occurs when plugging the Sharp SL-6000 zau= rus >> into USB. It was working in 2.6.32 but has been broken from kernel 3 >> onwards. > 2.6.32 was released in 2009, and 3.0 was released in 2011. Can you > please try a more modern kernel like 5.15, or ask for support from the > vendor that is forcing you to use older kernels? > > Or, can you use 'git bisect' between the working and failing kernel > versions to track down the offending commit? > > thanks, > > greg k-h > --=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.=