[PATCH] input: ALPS - Invert the Y axis and adjust scaling on SS5 tracksticks
From: Dima Ryazanov <hidden>
Date: 2017-01-10 07:36:07
Subsystem:
alps ps/2 touchpad driver, input (keyboard, mouse, joystick, touchscreen) drivers, the rest · Maintainers:
Dmitry Torokhov, Linus Torvalds
This patch fixes the trackstick on my Dell Latitude E7470. Currently, it's upside down and too fast (that is, much faster than when using the generic PS/2 driver). It also matches the trackpoint logic in alps_process_packet_v6. --- (I'm aware that scaling in the driver is not ideal - but at least the vertical orientation should be fixed.) Signed-off-by: Dima Ryazanov <redacted> --- drivers/input/mouse/alps.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/input/mouse/alps.c b/drivers/input/mouse/alps.c
index 328edc8..5fa7a15 100644
--- a/drivers/input/mouse/alps.c
+++ b/drivers/input/mouse/alps.c@@ -1346,8 +1346,8 @@ static void alps_process_packet_ss4_v2(struct psmouse *psmouse) return; } - input_report_rel(dev2, REL_X, SS4_TS_X_V2(packet)); - input_report_rel(dev2, REL_Y, SS4_TS_Y_V2(packet)); + input_report_rel(dev2, REL_X, SS4_TS_X_V2(packet) / 4); + input_report_rel(dev2, REL_Y, -SS4_TS_Y_V2(packet) / 4); input_report_abs(dev2, ABS_PRESSURE, SS4_TS_Z_V2(packet)); input_report_key(dev2, BTN_LEFT, f->ts_left);
--
2.9.3