[PATCH libinput] touchpad: add elantech-specific pressure values

Peter Hutterer peter.hutterer at who-t.net
Tue Mar 7 03:22:27 UTC 2017


https://bugs.freedesktop.org/show_bug.cgi?id=99975

Signed-off-by: Peter Hutterer <peter.hutterer at who-t.net>
---
 src/evdev-mt-touchpad.c | 11 ++++++++---
 1 file changed, 8 insertions(+), 3 deletions(-)

diff --git a/src/evdev-mt-touchpad.c b/src/evdev-mt-touchpad.c
index c8e434e..e2866df 100644
--- a/src/evdev-mt-touchpad.c
+++ b/src/evdev-mt-touchpad.c
@@ -2382,9 +2382,14 @@ tp_init_pressure(struct tp_dispatch *tp,
 
 	range = abs->maximum - abs->minimum;
 
-	/* Approximately the synaptics defaults */
-	tp->pressure.high = abs->minimum + 0.12 * range;
-	tp->pressure.low = abs->minimum + 0.10 * range;
+	if (device->model_flags & EVDEV_MODEL_ELANTECH_TOUCHPAD) {
+		tp->pressure.high = 24;
+		tp->pressure.low = 10;
+	} else {
+		/* Approximately the synaptics defaults */
+		tp->pressure.high = abs->minimum + 0.12 * range;
+		tp->pressure.low = abs->minimum + 0.10 * range;
+	}
 
 	evdev_log_debug(device,
 			"using pressure-based touch detection\n",
-- 
2.9.3



More information about the wayland-devel mailing list