tsc_test.c

来自「嵌入式linux 开发板驱动程序」· C语言 代码 · 共 41 行

/*********************************************
*  *GEC2410B
*  *touch screen test
*  *created at 2007-10-25
*********************************************/
#include <unistd.h>
#include <stdio.h>
#include <fcntl.h>

typedef struct{
	unsigned short pressure;
	unsigned short x;
	unsigned short y;
	unsigned short pad;
}TS_EVENT;

int main(void)
{
	static int ts=-1;
	static int mousex=0;
	static int mousey=0;
	static TS_EVENT ts_event;

	//touch screen
	printf("touch screen test program\n");
	printf("please touch the screen.\n");

	ts=open("/dev/ts", O_RDONLY);
	if(ts<0) {
		fprintf(stderr,"Can not open screen!\n");
		exit(1);
	}
	
	while(1)  {
		read(ts,&ts_event,sizeof(TS_EVENT));
		if(ts_event.pressure > 0)
{
			printf("mouse down:ts_event.x=%d,ts_event.y=%d\n",ts_event.x,ts_event.y);
		}
	}
}