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=-4.0 required=3.0 tests=BAYES_00,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 2C4A1C433E1 for ; Wed, 19 Aug 2020 02:52:49 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 099382076E for ; Wed, 19 Aug 2020 02:52:49 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726888AbgHSCws convert rfc822-to-8bit (ORCPT ); Tue, 18 Aug 2020 22:52:48 -0400 Received: from mail.kernel.org ([198.145.29.99]:46816 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726632AbgHSCwr (ORCPT ); Tue, 18 Aug 2020 22:52:47 -0400 From: bugzilla-daemon@bugzilla.kernel.org To: linux-usb@vger.kernel.org Subject: [Bug 208959] New: USB-serial (mct_u232): bit7=1 when tty is set to cs7? Date: Wed, 19 Aug 2020 02:52:47 +0000 X-Bugzilla-Reason: None X-Bugzilla-Type: new 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: mslade@epic-code.com.au 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: bug_id short_desc product version cf_kernel_version rep_platform op_sys cf_tree bug_status bug_severity priority component assigned_to reporter cf_regression Message-ID: Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: 8BIT X-Bugzilla-URL: https://bugzilla.kernel.org/ Auto-Submitted: auto-generated MIME-Version: 1.0 Sender: linux-usb-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-usb@vger.kernel.org https://bugzilla.kernel.org/show_bug.cgi?id=208959 Bug ID: 208959 Summary: USB-serial (mct_u232): bit7=1 when tty is set to cs7? Product: Drivers Version: 2.5 Kernel Version: 5.7.0 Hardware: All OS: Linux Tree: Mainline Status: NEW Severity: low Priority: P1 Component: USB Assignee: drivers_usb@kernel-bugs.kernel.org Reporter: mslade@epic-code.com.au Regression: No I'm not 100% certain this is a bug, please let me know if this is expected behavior. I have hooked an old serial mouse up to a USB serial device, USB ID 0711:0230 (part of an circa 2000 Targus port replicator) when I configure it with the appropriate 1200 baud and 7 bit char width, the bytes that come through /dev/ttyUSB0 all have bit7 set to 1. This behavior is in contrast to an old serial port on a box running a 2.4.19 kernel. Is there a standard for the value that non-data bits should be set to? -- You are receiving this mail because: You are watching the assignee of the bug.