Attachment 130022 Details for Bug 96409 – 0001-touchpad-set-apple-specific-pressure-values.patch

[patch] 0001-touchpad-set-apple-specific-pressure-values.patch

0001-touchpad-set-apple-specific-pressure-values.patch (text/plain), 1.43 KB, created by Peter Hutterer on 2017-03-02 06:12:27 UTC

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Creator: Peter Hutterer

Created: 2017-03-02 06:12:27 UTC

Size: 1.43 KB

patch

obsolete

>From 7b0780d4ce5e160381eb1ed4b79ec8698a03cc36 Mon Sep 17 00:00:00 2001
>From: Peter Hutterer <peter.hutterer@who-t.net>
>Date: Thu, 2 Mar 2017 16:06:51 +1000
>Subject: [PATCH libinput] touchpad: set apple-specific pressure values
>
>Recordings in bug 96409 show a couple of spikes in the 60-70 range but they
>appear to be ghost touches according to the comment. The main touch range
>starts at 115, so we may need to increase this in the future.
>
>For comparison, synaptics used the same values.
>
>https://bugs.freedesktop.org/show_bug.cgi?id=96409
>
>Signed-off-by: Peter Hutterer <peter.hutterer@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..2b80ac4 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_APPLE_TOUCHPAD) {
>+		tp->pressure.high = 75;
>+		tp->pressure.low = 70;
>+	} 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
>

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