[v2] HID: multitouch: set INPUT_PROP_PRESSUREPAD on compatible touchpads

[PATCH v2 0/4] HID: multitouch: set INPUT_PROP_PRESSUREPAD on compatible touchpads

Posted by Peter Hutterer via B4 Relay 1 month, 2 weeks ago

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@who-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@who-t.net>

Re: [PATCH v2 0/4] HID: multitouch: set INPUT_PROP_PRESSUREPAD on compatible touchpads

Posted by Benjamin Tissoires 1 month ago

On Mon, 22 Dec 2025 09:43:33 +1000, Peter Hutterer wrote:
> 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.
> 
> [...]

Applied to hid/hid.git (for-6.19/upstream-fixes), thanks!

[1/4] HID: multitouch: set INPUT_PROP_PRESSUREPAD based on Digitizer/Button Type
      https://git.kernel.org/hid/hid/c/2b29a90131bb
[2/4] selftests/hid: require hidtools 0.12
      https://git.kernel.org/hid/hid/c/1d6628f7f279
[3/4] selftests/hid: use a enum class for the different button types
      https://git.kernel.org/hid/hid/c/4f36fdab084f
[4/4] selftests/hid: add a test for the Digitizer/Button Type pressurepad
      https://git.kernel.org/hid/hid/c/f287ba5951a4

Cheers,
-- 
Benjamin Tissoires <bentiss@kernel.org>