check if /dev/input/eventX obey Multi-touch protocol or single-touch protocol

Question

I want to write some touch input events to rooted android device using sendevent. But some android devices obey Multi-touch protocol, the other obey single-touch protocol,just like multi-touch-protocol say. Is there any way to check if /dev/input/eventX obey Multi-touch protocol or single-touch protocol programly?

Answer 1

The only way to check for multi-touch support is to already know the device name, or to listen for multi-touch events.