diff options
| author | Peter Hutterer <peter.hutterer@who-t.net> | 2025-12-22 09:43:34 +1000 |
|---|---|---|
| committer | Benjamin Tissoires <bentiss@kernel.org> | 2026-01-07 15:28:09 +0100 |
| commit | 2b29a90131bbb3d404e5bf5102af5ce98ccf96fe (patch) | |
| tree | dda403aa17852a49e3b4904ca6583e2e8452d84a /drivers | |
| parent | c06bc3557542307b9658fbd43cc946a14250347b (diff) | |
HID: multitouch: set INPUT_PROP_PRESSUREPAD based on Digitizer/Button Type
A Digitizer/Button Type value of 1 indicates the device is a
pressurepad, see
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>
Signed-off-by: Benjamin Tissoires <bentiss@kernel.org>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/hid/hid-multitouch.c | 12 |
1 files changed, 11 insertions, 1 deletions
diff --git a/drivers/hid/hid-multitouch.c b/drivers/hid/hid-multitouch.c index a0c1ad5acb67..b1c3ef129058 100644 --- a/drivers/hid/hid-multitouch.c +++ b/drivers/hid/hid-multitouch.c @@ -81,6 +81,7 @@ MODULE_LICENSE("GPL"); #define MT_INPUTMODE_TOUCHPAD 0x03 #define MT_BUTTONTYPE_CLICKPAD 0 +#define MT_BUTTONTYPE_PRESSUREPAD 1 enum latency_mode { HID_LATENCY_NORMAL = 0, @@ -179,6 +180,7 @@ struct mt_device { __u8 inputmode_value; /* InputMode HID feature value */ __u8 maxcontacts; bool is_buttonpad; /* is this device a button pad? */ + bool is_pressurepad; /* is this device a pressurepad? */ bool is_haptic_touchpad; /* is this device a haptic touchpad? */ bool serial_maybe; /* need to check for serial protocol */ @@ -531,8 +533,14 @@ static void mt_feature_mapping(struct hid_device *hdev, } mt_get_feature(hdev, field->report); - if (field->value[usage->usage_index] == MT_BUTTONTYPE_CLICKPAD) + switch (field->value[usage->usage_index]) { + case MT_BUTTONTYPE_CLICKPAD: td->is_buttonpad = true; + break; + case MT_BUTTONTYPE_PRESSUREPAD: + td->is_pressurepad = true; + break; + } break; case 0xff0000c5: @@ -1394,6 +1402,8 @@ static int mt_touch_input_configured(struct hid_device *hdev, if (td->is_buttonpad) __set_bit(INPUT_PROP_BUTTONPAD, input->propbit); + if (td->is_pressurepad) + __set_bit(INPUT_PROP_PRESSUREPAD, input->propbit); app->pending_palm_slots = devm_kcalloc(&hi->input->dev, BITS_TO_LONGS(td->maxcontacts), |