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authorHans de Goede <hdegoede@redhat.com>2015-06-05 05:31:43 (GMT)
committerDmitry Torokhov <dmitry.torokhov@gmail.com>2015-06-05 05:34:40 (GMT)
commit088df2ccef75754cc16a6ba31829d23bcb2b68ed (patch)
treea4b2b164f72e0da3a4c735c6d23d8abae036c45b /drivers/input
parent692dd1916436164e228608803dfb6cb768d6355a (diff)
downloadlinux-088df2ccef75754cc16a6ba31829d23bcb2b68ed.tar.xz
Input: alps - do not reduce trackpoint speed by half
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. Cc: stable@vger.kernel.org Reported-and-tested-by: Rico Moorman <rico.moorman@gmail.com> Signed-off-by: Hans de Goede <hdegoede@redhat.com> Reviewed-by: Benjamin Tissoires <benjamin.tissoires@gmail.com> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Diffstat (limited to 'drivers/input')
-rw-r--r--drivers/input/mouse/alps.c5
1 files changed, 2 insertions, 3 deletions
diff --git a/drivers/input/mouse/alps.c b/drivers/input/mouse/alps.c
index 7752bd5..a353b7d 100644
--- a/drivers/input/mouse/alps.c
+++ b/drivers/input/mouse/alps.c
@@ -1063,9 +1063,8 @@ static void alps_process_trackstick_packet_v7(struct psmouse *psmouse)
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);