linux-kernel - [PATCH v2 0/4] HID: multitouch: set INPUT_PROP

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Message-Id: <20251222-wip-hid-pressurepad-v2-0-054ac9689bb7@who-t.net>
Date: Mon, 22 Dec 2025 09:43:33 +1000
From: Peter Hutterer via B4 Relay <devnull+peter.hutterer.who-t.net@...nel.org>
To: Jiri Kosina <jikos@...nel.org>, Benjamin Tissoires <bentiss@...nel.org>, 
 Shuah Khan <shuah@...nel.org>
Cc: Dmitry Torokhov <dmitry.torokhov@...il.com>, 
 linux-input@...r.kernel.org, linux-kselftest@...r.kernel.org, 
 linux-kernel@...r.kernel.org, Vadim Klishko <vadim@...que.com>, 
 Peter Hutterer <peter.hutterer@...-t.net>
Subject: [PATCH v2 0/4] HID: multitouch: set INPUT_PROP_PRESSUREPAD on
 compatible touchpads

Nicely enough MS defines a button type for a pressurepad touchpad [2]
and it looks like most touchpad vendors fill this in.

The selftests require a bit of prep work (and a hack for the test
itself) - hidtools 0.12 requires python-libevdev 0.13 which in turn
provides constructors for unknown properties.

[2] https://learn.microsoft.com/en-us/windows-hardware/design/component-guidelines/touchpad-windows-precision-touchpad-collection#device-capabilities-feature-report

Signed-off-by: Peter Hutterer <peter.hutterer@...-t.net>
---
Changes in v2:
- rebased on top of 6.18
- hid-multitouch changes split out into a separate patch
- Patches reordered for slightly nicer history, tests changes are
  grouped together
- Link to v1: https://lore.kernel.org/r/20251121-wip-hid-pressurepad-v1-0-e32e5565a527@who-t.net

---
Peter Hutterer (4):
      HID: multitouch: set INPUT_PROP_PRESSUREPAD based on Digitizer/Button Type
      selftests/hid: require hidtools 0.12
      selftests/hid: use a enum class for the different button types
      selftests/hid: add a test for the Digitizer/Button Type pressurepad

 drivers/hid/hid-multitouch.c                       | 12 ++++-
 tools/testing/selftests/hid/tests/conftest.py      | 14 +++++
 .../testing/selftests/hid/tests/test_multitouch.py | 61 +++++++++++++++++-----
 3 files changed, 73 insertions(+), 14 deletions(-)
---
base-commit: 7d0a66e4bb9081d75c82ec4957c50034cb0ea449
change-id: 20251111-wip-hid-pressurepad-8a800cdf1813

Best regards,
-- 
Peter Hutterer <peter.hutterer@...-t.net>