[src/trunk]: src/sys/dev/pckbport synaptics: Check for single-finger event ji...

[nia <nia%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/src/rev/6324ca0edaea
branches:  trunk
changeset: 970205:6324ca0edaea
user:      nia <nia%NetBSD.org@localhost>
date:      Sun Mar 15 22:44:32 2020 +0000

description:
synaptics: Check for single-finger event jitter in all cases.

I now have smooth two-finger scrolling.

diffstat:

 sys/dev/pckbport/synaptics.c |  13 +++----------
 1 files changed, 3 insertions(+), 10 deletions(-)

diffs (39 lines):

diff -r 5a908d0e777a -r 6324ca0edaea sys/dev/pckbport/synaptics.c
--- a/sys/dev/pckbport/synaptics.c      Sun Mar 15 22:19:00 2020 +0000
+++ b/sys/dev/pckbport/synaptics.c      Sun Mar 15 22:44:32 2020 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: synaptics.c,v 1.60 2020/03/14 22:23:17 nia Exp $       */
+/*     $NetBSD: synaptics.c,v 1.61 2020/03/15 22:44:32 nia Exp $       */
 
 /*
  * Copyright (c) 2005, Steve C. Woodford
@@ -48,7 +48,7 @@
 #include "opt_pms.h"
 
 #include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: synaptics.c,v 1.60 2020/03/14 22:23:17 nia Exp $");
+__KERNEL_RCSID(0, "$NetBSD: synaptics.c,v 1.61 2020/03/15 22:44:32 nia Exp $");
 
 #include <sys/param.h>
 #include <sys/systm.h>
@@ -1295,19 +1295,12 @@
                        fingers = 3;
                        break;
 
-               case SYNAPTICS_WIDTH_PEN:
-                       fingers = 1;
-                       break;
-
                default:
                        /*
                         * The width value can report spurious single-finger
                         * events after a multi-finger event.
                         */
-                       if (sc->prev_fingers > 1)
-                               fingers = sc->prev_fingers;
-                       else
-                               fingers = 1;
+                       fingers = sc->prev_fingers <= 1 ? 1 : sc->prev_fingers;
                        break;
                }
        }