触摸屏简单应用程序

#include
#include
#include
#include
#include
#include
#include

#define TS_DEV "/dev/touchscreen/0"  //设备文件要看下/dev目录
static int ts_fd=-1;

typedef struct {
  unsigned short pressure;
  unsigned short x;
  unsigned short y;
  unsigned short pad;
} TS_RET;//注意这个结构体

int main()
{
 TS_RET data;
 
 if((ts_fd=open(TS_DEV,O_RDONLY))<0)
 {
  printf("Error opening %s device!\n",TS_DEV);
  return -1;
 }
 
 while(1)
 {
  read(ts_fd,&data,sizeof(data));
  printf("x=%d,y=%d,pressure=%d\n",data.x,data.y,data.pressure);
 }
 
 return 0;
}