linux-触摸屏测试程序

#include
#include
#include
#include
#include
#define TS_DEV "/dev/input/event7"
static int ts_fd = -1;

static int init_device()
{
        if((ts_fd = open(TS_DEV, O_RDONLY)) < 0)
        {
                printf("Error open %s\n", TS_DEV);
                return -1;
        }
        return ts_fd;
}
 
int main()
{
        int i;
        struct input_event data;
        if(init_device() < 0)
                return -1;
        while(1)
        {
                read(ts_fd, &data, sizeof(data));
  printf("data.type = %d, data.code = %d, data.value = %d\n",data.type,data.code,data.value);
                if (data.type == EV_KEY)
                {
                        printf("type: EV_KEY, event = %s, value = %d\n\n",
                                data.code == BTN_TOUCH ? "BTN_TOUCH" : "Unkown", data.value);
                }
                else if(data.type == EV_ABS)
                {
                        printf("type: EV_ABS, event = %s, value = %d\n\n",
                                data.code == ABS_X ? "ABS_X" :
                                data.code == ABS_Y ? "ABS_Y" :
                                data.code == ABS_PRESSURE ? "ABS_PRESSURE" :
                                "Unkown", data.value);
                }
                else if (data.type == EV_SYN)
                {
                        printf("type: EV_SYN, event = %s, value = %d\n\n",
                                data.code == SYN_REPORT ? "SYN_REPORT" : "Unkown", data.value);
                }
                else
                {
                        printf("type: 0x%x, event = 0x%x, value = %d\n\n", data.type, data.code, data.value);
                }
        }
        return 0;
}

交叉编译:arm-linux-gcc  -o ts_test  ts_test.c  -static

运行应用程序就可以了，这里需要确定自己的

TS_DEV "/dev/input/event7"

我的touch 是 event0。。。。注意修改了，

测试结果如下：

data.type = 3, data.code = 0, data.value = 329

type: EV_ABS, event = ABS_X, value = 329

data.type = 0, data.code = 0, data.value = 0

type: EV_SYN, event = SYN_REPORT, value = 0

data.type = 3, data.code = 0, data.value = 328

type: EV_ABS, event = ABS_X, value = 328

data.type = 0, data.code = 0, data.value = 0

type: EV_SYN, event = SYN_REPORT, value = 0

data.type = 3, data.code = 0, data.value = 329

type: EV_ABS, event = ABS_X, value = 329

data.type = 0, data.code = 0, data.value = 0

type: EV_SYN, event = SYN_REPORT, value = 0

data.type = 3, data.code = 0, data.value = 328

type: EV_ABS, event = ABS_X, value = 328

data.type = 0, data.code = 0, data.value = 0

type: EV_SYN, event = SYN_REPORT, value = 0

data.type = 3, data.code = 0, data.value = 329

type: EV_ABS, event = ABS_X, value = 329

data.type = 0, data.code = 0, data.value = 0

type: EV_SYN, event = SYN_REPORT, value = 0

data.type = 3, data.code = 1, data.value = 310

type: EV_ABS, event = ABS_Y, value = 310

data.type = 0, data.code = 0, data.value = 0

type: EV_SYN, event = SYN_REPORT, value = 0

data.type = 3, data.code = 0, data.value = 330

type: EV_ABS, event = ABS_X, value = 330

data.type = 3, data.code = 1, data.value = 311

type: EV_ABS, event = ABS_Y, value = 311

data.type = 0, data.code = 0, data.value = 0

type: EV_SYN, event = SYN_REPORT, value = 0

data.type = 3, data.code = 0, data.value = 332

type: EV_ABS, event = ABS_X, value = 332

data.type = 3, data.code = 1, data.value = 312

type: EV_ABS, event = ABS_Y, value = 312

data.type = 0, data.code = 0, data.value = 0

type: EV_SYN, event = SYN_REPORT, value = 0

data.type = 3, data.code = 0, data.value = 335

type: EV_ABS, event = ABS_X, value = 335

data.type = 3, data.code = 1, data.value = 323

type: EV_ABS, event = ABS_Y, value = 323

data.type = 0, data.code = 0, data.value = 0

type: EV_SYN, event = SYN_REPORT, value = 0

data.type = 1, data.code = 330, data.value = 0

type: EV_KEY, event = BTN_TOUCH, value = 0

data.type = 3, data.code = 24, data.value = 0

type: EV_ABS, event = ABS_PRESSURE, value = 0

data.type = 0, data.code = 0, data.value = 0

type: EV_SYN, event = SYN_REPORT, value = 0