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Peter Hutterer ae8966b7b5 Input: rename INPUT_PROP_HAPTIC_TOUCHPAD to INPUT_PROP_PRESSUREPAD 
And expand it to encompass all pressure pads.

Definition: "pressure pad" as used here as includes all touchpads that
use physical pressure to convert to click, without physical hinges. Also
called haptic touchpads in general parlance, Synaptics calls them
ForcePads.

Most (all?) pressure pads are currently advertised as
INPUT_PROP_BUTTONPAD. The suggestion to identify them as pressure pads
by defining the resolution on ABS_MT_PRESSURE has been in the docs since
commit 20ccc8dd38 ("Documentation: input: define
ABS_PRESSURE/ABS_MT_PRESSURE resolution as grams") but few devices
provide this information.

In userspace it's thus impossible to determine whether a device is a
true pressure pad (pressure equals pressure) or a normal clickpad with
(pressure equals finger size).

Commit 7075ae4ac9 ("Input: add INPUT_PROP_HAPTIC_TOUCHPAD") introduces
INPUT_PROP_HAPTIC_TOUCHPAD but restricted it to those touchpads that
have support for userspace-controlled effects. Let's expand and rename
that definition to include all pressure pad touchpads since those that
do support FF effects can be identified by the presence of the
FF_HAPTIC bit.

This means:
- clickpad: INPUT_PROP_BUTTONPAD
- pressurepad: INPUT_PROP_BUTTONPAD + INPUT_PROP_PRESSUREPAD
- pressurepad with configurable haptics:
  INPUT_PROP_BUTTONPAD + INPUT_PROP_PRESSUREPAD + FF_HAPTIC

Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
Acked-by: Benjamin Tissoires <bentiss@kernel.org>
Link: https://patch.msgid.link/20251106114534.GA405512@tassie
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
 		2025-11-17 23:18:32 -08:00
..
acpi More power management updates for 6.18-rc1 2025-10-07 09:39:51 -07:00
asm-generic kbuild: align modinfo section for Secureboot Authenticode EDK2 compat 2025-10-27 16:21:24 -07:00
clocksource
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crypto This update includes the following changes: 2025-10-04 14:59:29 -07:00
cxl
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drm kbuild: Let kernel-doc.py use PYTHON3 override 2025-11-08 19:42:22 -07:00
dt-bindings There's a bunch of patches here across drivers/clk/ to migrate drivers to use 2025-10-07 09:28:37 -07:00
hyperv hyperv: Remove the spurious null directive line 2025-10-02 21:21:24 +00:00
keys
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kunit linux_kselftest-kunit-6.18-rc1 2025-10-01 19:15:11 -07:00
kvm KVM: arm64: Kill leftovers of ad-hoc timer userspace access 2025-10-13 14:42:41 +01:00
linux 7 hotfixes. 5 are cc:stable, 4 are against mm/. 2025-11-16 13:31:14 -08:00
math-emu
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media
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memory
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misc
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net Including fixes from Bluetooth and Wireless. No known outstanding 2025-11-13 11:20:25 -08:00
pcmcia
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ras
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rdma
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rv
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scsi scsi: core: Fix the unit attention counter implementation 2025-10-21 21:09:36 -04:00
soc There's a bunch of patches here across drivers/clk/ to migrate drivers to use 2025-10-07 09:28:37 -07:00
sound ASoC: tas2781: Support more newly-released amplifiers tas58xx in the driver 2025-10-13 11:08:09 +01:00
target
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trace trace: tcp: add three metrics to trace_tcp_rcvbuf_grow() 2025-10-29 17:30:18 -07:00
uapi Input: rename INPUT_PROP_HAPTIC_TOUCHPAD to INPUT_PROP_PRESSUREPAD 2025-11-17 23:18:32 -08:00
ufs scsi: ufs: core: Add a quirk to suppress link_startup_again 2025-10-29 23:20:19 -04:00
vdso
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video
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xen
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Kbuild
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