diff options
| -rw-r--r-- | drivers/hid/hid-multitouch.c | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/drivers/hid/hid-multitouch.c b/drivers/hid/hid-multitouch.c index ffdbc70eb5ba..e86fbf4be639 100644 --- a/drivers/hid/hid-multitouch.c +++ b/drivers/hid/hid-multitouch.c @@ -52,6 +52,7 @@ MODULE_LICENSE("GPL"); #define MT_QUIRK_VALID_IS_CONFIDENCE (1 << 6) #define MT_QUIRK_SLOT_IS_CONTACTID_MINUS_ONE (1 << 8) #define MT_QUIRK_NO_AREA (1 << 9) +#define MT_QUIRK_IGNORE_DUPLICATES (1 << 10) struct mt_slot { __s32 x, y, cx, cy, p, w, h; @@ -505,10 +506,18 @@ static void mt_complete_slot(struct mt_device *td, struct input_dev *input) if (td->curvalid || (td->mtclass.quirks & MT_QUIRK_ALWAYS_VALID)) { int slotnum = mt_compute_slot(td, input); struct mt_slot *s = &td->curdata; + struct input_mt *mt = input->mt; if (slotnum < 0 || slotnum >= td->maxcontacts) return; + if ((td->mtclass.quirks & MT_QUIRK_IGNORE_DUPLICATES) && mt) { + struct input_mt_slot *slot = &mt->slots[slotnum]; + if (input_mt_is_active(slot) && + input_mt_is_used(mt, slot)) + return; + } + input_mt_slot(input, slotnum); input_mt_report_slot_state(input, MT_TOOL_FINGER, s->touch_state); |