Question about Linux MT Protocol B type

[강정현]

Dear all, I have an one question about Linux MT Protocol B type.   Asume that press touch screen using first finger. And release fisrt finger and press second finger toghether.   In that case, which procotol is correct?    ABS_MT_SLOT 0  ABS_MT_TRACKING_ID 1  ABS_MT_POSITION_X 10  ABS_MT_POSITION_Y 5  ABS_MT_SYNC <-- first finger press   first case  ABS_MT_TRACKING_ID -1  ABS_MT_TRACKING_ID 2  ABS_MT_POSITION_X 15  ABS_MT_POSITION_Y 10  ABS_MT_SYNC <-- first finger release and first finger press is generated   second case  ABS_MT_TRACKING_ID -1  ABS_MT_SLOT 1  ABS_MT_TRACKING_ID 2  ABS_MT_POSITION_X 15  ABS_MT_POSITION_Y 10  ABS_MT_SYNC <-- first finger release and second finger press is generated   I think first case is correct, but sometimes second case procotol is generated. I think second case event flow is like below: first finger press -> first finger release -> (all finger released) -> second finger press So, in this case said, second finger came first after all finger is released..   So I want to know which case is correct following Linux MT Protocol B type.   Someone who help me? I'll waiting your opinions, Thanks and regards, JeongHyun Kang.

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