D1H的触摸屏坐标数值怎么解析？

[lgkgkfg]

D1H插入一个USB鼠标设备，调用getevent回返回左边，但是这串HEX的X Y坐标怎么看？

/dev/input/event1: 0000 0000 00000000
poll 5, returned 1
/dev/input/event1: 0003 0000 0000044a
poll 5, returned 1
/dev/input/event1: 0003 0001 000009e3
poll 5, returned 1
/dev/input/event1: 0000 0000 00000000
poll 5, returned 1
/dev/input/event1: 0003 0000 0000045b
poll 5, returned 1
/dev/input/event1: 0003 0001 000009e9
poll 5, returned 1
/dev/input/event1: 0000 0000 00000000
poll 5, returned 1
/dev/input/event1: 0003 0000 00000468
poll 5, returned 1
/dev/input/event1: 0003 0001 000009ed
poll 5, returned 1
/dev/input/event1: 0000 0000 00000000
poll 5, returned 1
/dev/input/event1: 0004 0004 00090001
poll 5, returned 1
/dev/input/event1: 0001 0110 00000000
poll 5, returned 1
/dev/input/event1: 0000 0000 00000000

[whycan]

用evtest:
https://elinux.org/images/9/93/Evtest.c

[lgkgkfg]

@whycan 能不能在设备树直接缩放鼠标坐标，设备传来的横纵坐标太大了，还是只能应用层处理？

[whycan]

@lgkgkfg
鼠标传的是相对上次的位移吧，除以显示屏分辨率即可。

[lgkgkfg]

@whycan 有资料参考学习下吗