From: Peter Hutterer <[email protected]> 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 <[email protected]> --- drivers/hid/hid-multitouch.c | 12 +++++++++++- 1 file changed, 11 insertions(+), 1 deletion(-) diff --git a/drivers/hid/hid-multitouch.c b/drivers/hid/hid-multitouch.c index 179dc316b4b518d78bdc900d9fd15756c5eba83e..382e6f50c4f7e663af7d028abb8be7cb2e6e7b8e 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 */ @@ -530,8 +532,14 @@ 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: @@ -1393,6 +1401,8 @@ 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), -- 2.51.1
