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touchpad: use the udev ID_INPUT_TOUCHPAD_INTEGRATION property if available

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udev now labels touchpads as "internal" or "external" for us, use that value
where available and only fall back onto our own labelling if it's missing or
unknown.

systemd commit: https://github.com/systemd/systemd/pull/3638

https://bugs.freedesktop.org/show_bug.cgi?id=96735

Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
(cherry picked from commit 64e3941189)
This commit is contained in:
Peter Hutterer 2016-07-06 07:59:31 +10:00
parent d7d64d9871
commit 6614604e9a
1 changed files with 18 additions and 0 deletions
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18
src/evdev-mt-touchpad.c
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@ -1589,6 +1589,24 @@ evdev_tag_touchpad(struct evdev_device *device,
struct udev_device *udev_device)
{
int bustype, vendor;
const char *prop;
prop = udev_device_get_property_value(udev_device,
"ID_INPUT_TOUCHPAD_INTEGRATION");
if (prop) {
if (streq(prop, "internal")) {
evdev_tag_touchpad_internal(device);
return;
} else if (streq(prop, "external")) {
evdev_tag_touchpad_external(device);
return;
} else {
log_info(evdev_libinput_context(device),
"%s: tagged as unknown value %s\n",
device->devname,
prop);
}
}
/* simple approach: touchpads on USB or Bluetooth are considered
* external, anything else is internal. Exception is Apple -