diff options
Diffstat (limited to 'drivers/hid/hid-ntrig.c')
| -rw-r--r-- | drivers/hid/hid-ntrig.c | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/drivers/hid/hid-ntrig.c b/drivers/hid/hid-ntrig.c index 3234c729a895..9b24fc510712 100644 --- a/drivers/hid/hid-ntrig.c +++ b/drivers/hid/hid-ntrig.c @@ -16,6 +16,7 @@ #include <linux/device.h> #include <linux/hid.h> #include <linux/module.h> +#include <linux/slab.h> #include "hid-ids.h" @@ -140,6 +141,9 @@ static int ntrig_event (struct hid_device *hid, struct hid_field *field, nd->reading_mt = 1; nd->first_contact_confidence = 0; break; + case HID_DG_TIPSWITCH: + /* Prevent emission of touch until validated */ + return 1; case HID_DG_CONFIDENCE: nd->confidence = value; break; @@ -259,6 +263,7 @@ static int ntrig_event (struct hid_device *hid, struct hid_field *field, BTN_TOOL_TRIPLETAP, 0); input_report_key(input, BTN_TOOL_QUADTAP, 0); + input_report_key(input, BTN_TOUCH, 0); } break; @@ -308,13 +313,20 @@ static int ntrig_probe(struct hid_device *hdev, const struct hid_device_id *id) list_for_each_entry(hidinput, &hdev->inputs, list) { + if (hidinput->report->maxfield < 1) + continue; + input = hidinput->input; switch (hidinput->report->field[0]->application) { case HID_DG_PEN: input->name = "N-Trig Pen"; break; case HID_DG_TOUCHSCREEN: + /* These keys are redundant for fingers, clear them + * to prevent incorrect identification */ __clear_bit(BTN_TOOL_PEN, input->keybit); + __clear_bit(BTN_TOOL_FINGER, input->keybit); + __clear_bit(BTN_0, input->keybit); /* * A little something special to enable * two and three finger taps. |