From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail.linuxfoundation.org ([140.211.169.12]:44386 "EHLO mail.linuxfoundation.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751979AbcJFFeV (ORCPT ); Thu, 6 Oct 2016 01:34:21 -0400 Subject: Patch "USB: serial: cp210x: fix hardware flow-control disable" has been added to the 4.4-stable tree To: konstantin.shkolnyy@gmail.com, gregkh@linuxfoundation.org, johan@kernel.org Cc: , From: Date: Thu, 06 Oct 2016 07:34:14 +0200 Message-ID: <147573205440186@kroah.com> MIME-Version: 1.0 Content-Type: text/plain; charset=ANSI_X3.4-1968 Content-Transfer-Encoding: 8bit Sender: stable-owner@vger.kernel.org List-ID: This is a note to let you know that I've just added the patch titled USB: serial: cp210x: fix hardware flow-control disable to the 4.4-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary The filename of the patch is: usb-serial-cp210x-fix-hardware-flow-control-disable.patch and it can be found in the queue-4.4 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let know about it. >>From a377f9e906af4df9071ba8ddba60188cb4013d93 Mon Sep 17 00:00:00 2001 From: Konstantin Shkolnyy Date: Wed, 4 May 2016 16:56:52 -0500 Subject: USB: serial: cp210x: fix hardware flow-control disable From: Konstantin Shkolnyy commit a377f9e906af4df9071ba8ddba60188cb4013d93 upstream. A bug in the CRTSCTS handling caused RTS to alternate between CRTSCTS=0 => "RTS is transmit active signal" and CRTSCTS=1 => "RTS is used for receive flow control" instead of CRTSCTS=0 => "RTS is statically active" and CRTSCTS=1 => "RTS is used for receive flow control" This only happened after first having enabled CRTSCTS. Signed-off-by: Konstantin Shkolnyy Fixes: 39a66b8d22a3 ("[PATCH] USB: CP2101 Add support for flow control") [johan: reword commit message ] Signed-off-by: Johan Hovold [johan: backport to 4.4 ] Signed-off-by: Johan Hovold Signed-off-by: Greg Kroah-Hartman --- This is a backport of an upstream fix to v4.4, which should apply too earlier stable trees as well. Johan drivers/usb/serial/cp210x.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) --- a/drivers/usb/serial/cp210x.c +++ b/drivers/usb/serial/cp210x.c @@ -784,7 +784,7 @@ static void cp210x_set_termios(struct tt } else { modem_ctl[0] &= ~0x7B; modem_ctl[0] |= 0x01; - modem_ctl[1] |= 0x40; + modem_ctl[1] = 0x40; dev_dbg(dev, "%s - flow control = NONE\n", __func__); } Patches currently in stable-queue which might be from konstantin.shkolnyy@gmail.com are queue-4.4/usb-serial-cp210x-fix-hardware-flow-control-disable.patch