From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail.linuxfoundation.org ([140.211.169.12]:49865 "EHLO mail.linuxfoundation.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755289AbbFSTJ3 (ORCPT ); Fri, 19 Jun 2015 15:09:29 -0400 Subject: Patch "Input: alps - do not reduce trackpoint speed by half" has been added to the 4.0-stable tree To: hdegoede@redhat.com, benjamin.tissoires@gmail.com, dmitry.torokhov@gmail.com, gregkh@linuxfoundation.org, rico.moorman@gmail.com Cc: , From: Date: Fri, 19 Jun 2015 12:09:28 -0700 Message-ID: <1434740968138236@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 Input: alps - do not reduce trackpoint speed by half to the 4.0-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: input-alps-do-not-reduce-trackpoint-speed-by-half.patch and it can be found in the queue-4.0 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let know about it. >>From 088df2ccef75754cc16a6ba31829d23bcb2b68ed Mon Sep 17 00:00:00 2001 From: Hans de Goede Date: Thu, 4 Jun 2015 22:31:43 -0700 Subject: Input: alps - do not reduce trackpoint speed by half From: Hans de Goede commit 088df2ccef75754cc16a6ba31829d23bcb2b68ed upstream. On some v7 devices (e.g. Lenovo-E550) the deltas reported are typically only in the 0-1 range dividing this by 2 results in a range of 0-0. And even for v7 devices where this does not lead to making the trackstick entirely unusable, it makes it twice as slow as before we added v7 support and were using the ps/2 mouse emulation of the dual point setup. If some kind of generic slowdown is actually necessary for some devices, then that belongs in userspace, not in the kernel. Reported-and-tested-by: Rico Moorman Signed-off-by: Hans de Goede Reviewed-by: Benjamin Tissoires Signed-off-by: Dmitry Torokhov Signed-off-by: Greg Kroah-Hartman --- drivers/input/mouse/alps.c | 5 ++--- 1 file changed, 2 insertions(+), 3 deletions(-) --- a/drivers/input/mouse/alps.c +++ b/drivers/input/mouse/alps.c @@ -1042,9 +1042,8 @@ static void alps_process_trackstick_pack right = (packet[1] & 0x02) >> 1; middle = (packet[1] & 0x04) >> 2; - /* Divide 2 since trackpoint's speed is too fast */ - input_report_rel(dev2, REL_X, (char)x / 2); - input_report_rel(dev2, REL_Y, -((char)y / 2)); + input_report_rel(dev2, REL_X, (char)x); + input_report_rel(dev2, REL_Y, -((char)y)); input_report_key(dev2, BTN_LEFT, left); input_report_key(dev2, BTN_RIGHT, right); Patches currently in stable-queue which might be from hdegoede@redhat.com are queue-4.0/input-elantech-fix-detection-of-touchpads-where-the-revision-matches-a-known-rate.patch queue-4.0/input-alps-do-not-reduce-trackpoint-speed-by-half.patch -- To unsubscribe from this list: send the line "unsubscribe stable" in