树梅派硬件学习_xbox手柄驱动
作者：互联网
joystick手柄驱动
使用xbox手柄
手柄测试:
ls /dev/input #找到一个js0表示支持joystick
cat /dev/input/js0 | hexdump #实时查看手柄的输出, 十六进制显示
00000a0 8bb4 0051 0000 0702 8ee8 0051 8001 0702
00000b0 8f56 0051 0000 0702 9000 0051 8001 0702
00000c0 9046 0051 0000 0702 9456 0051 7fff 0702
sudo apt-get install joystick #下载手柄驱动
jstest /dev/input/js0 #测试手柄,相当于上一种16进制的解释
Axes: 0: 0 1: 0 2:-32767 3: 0 4: 0 5:-32767 6: 0 7: 0 Buttons: 0:off 1:off 2:off 3:off 4:off 5:off 6:off 7:off 8:off 9:off 10:off
代码
#include <stdio.h>
#include <unistd.h>
#include <string.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <errno.h>
#include <linux/input.h>
#include <linux/joystick.h>
#include <iostream>
using namespace std;
#define XBOX_TYPE_BUTTON 0x01
#define XBOX_TYPE_AXIS 0x02
#define XBOX_BUTTON_A 0x00
#define XBOX_BUTTON_B 0x01
#define XBOX_BUTTON_X 0x02
#define XBOX_BUTTON_Y 0x03
#define XBOX_BUTTON_LB 0x04
#define XBOX_BUTTON_RB 0x05
#define XBOX_BUTTON_START 0x06
#define XBOX_BUTTON_BACK 0x07
#define XBOX_BUTTON_HOME 0x08
#define XBOX_BUTTON_LO 0x09 /* 左摇杆按键 */
#define XBOX_BUTTON_RO 0x0a /* 右摇杆按键 */
#define XBOX_BUTTON_ON 0x01
#define XBOX_BUTTON_OFF 0x00
#define XBOX_AXIS_LX 0x00 /* 左摇杆X轴 */
#define XBOX_AXIS_LY 0x01 /* 左摇杆Y轴 */
#define XBOX_AXIS_RX 0x03 /* 右摇杆X轴 */
#define XBOX_AXIS_RY 0x04 /* 右摇杆Y轴 */
#define XBOX_AXIS_LT 0x02
#define XBOX_AXIS_RT 0x05
#define XBOX_AXIS_XX 0x06 /* 方向键X轴 */
#define XBOX_AXIS_YY 0x07 /* 方向键Y轴 */
#define XBOX_AXIS_VAL_UP -32767
#define XBOX_AXIS_VAL_DOWN 32767
#define XBOX_AXIS_VAL_LEFT -32767
#define XBOX_AXIS_VAL_RIGHT 32767
#define XBOX_AXIS_VAL_MIN -32767
#define XBOX_AXIS_VAL_MAX 32767
#define XBOX_AXIS_VAL_MID 0x00
class XBox{
private:
int xbox_fd=0;
const char* file_name = "/dev/input/js0";
public:
struct xbox_map
{
int time;
int a;
int b;
int x;
int y;
int lb;
int rb;
int start;
int back;
int home;
int lo;
int ro;
int lx;
int ly;
int rx;
int ry;
int lt;
int rt;
int xx;
int yy;
}map;
public:
XBox(){
this->map = {0};
}
~XBox(){}
int xbox_open()
{
this->xbox_fd = open(this->file_name, O_RDONLY);
if (this->xbox_fd < 0)
{
perror("open");
return -1;
}
return 1;
}
int xbox_map_read()
{
int len, type, number, value;
struct js_event js;
len = read(this->xbox_fd, &js, sizeof(struct js_event));
if (len < 0)
{
perror("read");
return -1;
}
type = js.type;
number = js.number;
value = js.value;
this->map.time = js.time;
if (type == JS_EVENT_BUTTON)
{
switch (number)
{
case XBOX_BUTTON_A:
this->map.a = value;
break;
case XBOX_BUTTON_B:
this->map.b = value;
break;
case XBOX_BUTTON_X:
this->map.x = value;
break;
case XBOX_BUTTON_Y:
this->map.y = value;
break;
case XBOX_BUTTON_LB:
this->map.lb = value;
break;
case XBOX_BUTTON_RB:
this->map.rb = value;
break;
case XBOX_BUTTON_START:
this->map.start = value;
break;
case XBOX_BUTTON_BACK:
this->map.back = value;
break;
case XBOX_BUTTON_HOME:
this->map.home = value;
break;
case XBOX_BUTTON_LO:
this->map.lo = value;
break;
case XBOX_BUTTON_RO:
this->map.ro = value;
break;
default:
break;
}
}
else if (type == JS_EVENT_AXIS)
{
switch(number)
{
case XBOX_AXIS_LX:
this->map.lx = value;
break;
case XBOX_AXIS_LY:
this->map.ly = value;
break;
case XBOX_AXIS_RX:
this->map.rx = value;
break;
case XBOX_AXIS_RY:
this->map.ry = value;
break;
case XBOX_AXIS_LT:
this->map.lt = value;
break;
case XBOX_AXIS_RT:
this->map.rt = value;
break;
case XBOX_AXIS_XX:
this->map.xx = value;
break;
case XBOX_AXIS_YY:
this->map.yy = value;
break;
default:
break;
}
}
else
{
/* Init do nothing */
}
return len;
}
void xbox_close()
{
close(this->xbox_fd);
return;
}
};
int main(void)
{
XBox xbox;
int len;
if( xbox.xbox_open() < 0)
{
printf("打开文件失败!");
return -1;
}
while(1)
{
len = xbox.xbox_map_read();
if (len < 0)
{
usleep(10*1000);
continue;
}
if(xbox.map.a==1)printf("a\t");
if(xbox.map.b==1)printf("b\t");
if(xbox.map.xx<0)printf("left\t");
if(xbox.map.xx>0)printf("right\t");
printf("\n");
}
xbox.xbox_close();
return 0;
}
输出:
#全部为:
Time: 6647560 A:0 B:0 X:0 Y:0 LB:0 RB:0 start:0 back:0 home:0 LO:0 RO:0 XX:0 YY:0 LX:0 LY:0 RX:0 RY:0
输出:
right
b right
right
a right
a
a left
left
标签：map,手柄,int,BUTTON,XBOX,梅派,AXIS,xbox,define 来源： https://blog.csdn.net/weixin_44342705/article/details/119274395