hwdb: add a touchpad hwdb

System Internals / systemd - Peter Hutterer [who-t.net] - 28 January 2015 21:06 UTC

Currently used to tag devices in the new Lenovo *50 series and the X1 Carbon 3rd. These laptops re-introduced the physical trackpoint buttons that were missing from the *40 series but those buttons are now wired up to the touchpad.

The touchpad now sends BTN_0, BTN_1 and BTN_2 for the trackpoint. The same button codes were used in older touchpads that had dedicated scroll up/down buttons. Input drivers need to work around this and thus know what they're dealing with.

For the previous gen we introduced INPUT_PROP_TOPBUTTONPAD in the kernel, but the resulting mess showed that these per-device quirks should really live in userspace.

The list currently includes the X1 Carbon 3rd PNPID, others will be added as get to know which PNPID they have.

001a247 hwdb: add a touchpad hwdb
Makefile.am | 4 +++-
hwdb/70-touchpad.hwdb | 39 +++++++++++++++++++++++++++++++++++++++
rules/70-touchpad.rules | 12 ++++++++++++
3 files changed, 54 insertions(+), 1 deletion(-)

Upstream: github.com

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