From patchwork Wed Apr 7 10:39:02 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Johan Hovold X-Patchwork-Id: 12187681 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=-19.0 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT autolearn=ham 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 AAFAFC43461 for ; Wed, 7 Apr 2021 10:39:56 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 75A39613A7 for ; Wed, 7 Apr 2021 10:39:56 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1351179AbhDGKkD (ORCPT ); Wed, 7 Apr 2021 06:40:03 -0400 Received: from mail.kernel.org ([198.145.29.99]:48962 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S234463AbhDGKj7 (ORCPT ); Wed, 7 Apr 2021 06:39:59 -0400 Received: by mail.kernel.org (Postfix) with ESMTPSA id 0A72E613A3; Wed, 7 Apr 2021 10:39:50 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1617791990; bh=zecdlwn06S6EnBdUVHmnGszqZfSeUN4/Do04x9qNU+s=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=CiIf4b+AgPcExylUWFTxmKsZyg1nnFIAGQmiU8iXM6NMBZZXF48pHaVDCf66N7khE TuVPaK5eoKMhSi1+GKCOPBaCdjgTBUh9SFC7YggDT1PMu2cgRfqYSjmBBkIdTjn/pX A4/kvfxQU8IJkWjxOGwuLZw01Evfau6LdrlHtyceAQmmPnBiOcDQG8ntOHT+KUFj8A uIBs16ykqGxoX8/JJAGmbBEtFbWtfRedgpgrLq5TjJV2jKMg90CEMFfql/4wtTn9Bn qWId9s0OPzfjLAydKQp6LkDcAE6l8Ohc4n00uUWj7ysWstRA/DHy/aBvfv5zqo7UXa yfpfzZKtE3fyA== Received: from johan by xi.lan with local (Exim 4.93.0.4) (envelope-from ) id 1lU5b4-0000EZ-9j; Wed, 07 Apr 2021 12:39:42 +0200 From: Johan Hovold To: Johan Hovold Cc: linux-usb@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH 01/24] USB: serial: ark3116: fix TIOCGSERIAL implementation Date: Wed, 7 Apr 2021 12:39:02 +0200 Message-Id: <20210407103925.829-2-johan@kernel.org> X-Mailer: git-send-email 2.26.3 In-Reply-To: <20210407103925.829-1-johan@kernel.org> References: <20210407103925.829-1-johan@kernel.org> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-usb@vger.kernel.org TIOCSSERIAL is a horrid, underspecified, legacy interface which for most serial devices is only useful for setting the close_delay and closing_wait parameters. The port parameter is used to set the I/O port and does not make any sense to use for USB serial devices. The baud_base parameter could be used to set the UART base clock when it could not be detected but might as well be left unset when it is not known. The close_delay and closing_wait parameters returned by TIOCGSERIAL are specified in centiseconds. The driver does not yet support changing these, but let's report back the default values actually used (0.5 and 30 seconds, respectively). Fixes: 2f430b4bbae7 ("USB: ark3116: Add TIOCGSERIAL and TIOCSSERIAL ioctl calls.") Signed-off-by: Johan Hovold --- drivers/usb/serial/ark3116.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/drivers/usb/serial/ark3116.c b/drivers/usb/serial/ark3116.c index b9bedfe9bd09..957cdd694b1f 100644 --- a/drivers/usb/serial/ark3116.c +++ b/drivers/usb/serial/ark3116.c @@ -392,8 +392,9 @@ static int ark3116_get_serial_info(struct tty_struct *tty, ss->type = PORT_16654; ss->line = port->minor; - ss->port = port->port_number; - ss->baud_base = 460800; + ss->close_delay = 50; + ss->closing_wait = 3000; + return 0; }