基恩士扫码枪tcp通信代码

基恩士扫码枪TCP通信代码主要是通过TCP/IP协议完成数据的传输，实现扫码枪与PC端设备之间的数据交换。

通常情况下，PC端需要先创建一个TCP监听套接字，绑定相关的IP地址和端口号，等待扫码枪的连接请求。而扫码枪则需要在配置好自己的IP地址和端口号后，主动连接PC端，并发送数据。

以下是一个基本的TCP通信代码示例：

//PC端代码

#include <sys/socket.h>
#include <netinet/in.h>
#include <arpa/inet.h>
#include <unistd.h>
#include <string.h>
#include <stdio.h>

int main()
{
int server_socket = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP);
struct sockaddr_in server_addr;
memset(&server_addr, 0, sizeof(server_addr));
server_addr.sin_family = AF_INET;
server_addr.sin_addr.s_addr = inet_addr("127.0.0.1");//PC端IP地址
server_addr.sin_port = htons(8080);//PC端监听端口号
bind(server_socket, (struct sockaddr*)&server_addr, sizeof(server_addr));
listen(server_socket, 20);

int client_socket;
struct sockaddr_in client_addr;
socklen_t client_addr_size = sizeof(client_addr);
client_socket = accept(server_socket, (struct sockaddr*)&client_addr, &client_addr_size);

char buffer[1024];
while(1)
{
memset(buffer, 0, sizeof(buffer));
int len = recv(client_socket, buffer, sizeof(buffer), 0);//接收扫码枪发送的数据
if(len > 0)
{
printf("receive: %s", buffer);//打印接收到的数据
}
else
{
break;
}
}

close(client_socket);
close(server_socket);
return 0;
}

//扫码枪代码

#include <sys/socket.h>
#include <netinet/in.h>
#include <arpa/inet.h>
#include <unistd.h>
#include <string.h>
#include <stdio.h>

int main()
{
int client_socket = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP);
struct sockaddr_in server_addr;
memset(&server_addr, 0, sizeof(server_addr));
server_addr.sin_family = AF_INET;
server_addr.sin_addr.s_addr = inet_addr("127.0.0.1");//PC端IP地址
server_addr.sin_port = htons(8080);//PC端监听端口号
connect(client_socket, (struct sockaddr*)&server_addr, sizeof(server_addr));

char buffer[1024] = "hello, PC\n";
send(client_socket, buffer, strlen(buffer), 0);//发送数据给PC端

close(client_socket);
return 0;
}

以上代码仅为示例，请根据具体情况进行修改和完善。