user space串口编程
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源码:
#include <stdio.h>
#include <stdlib.h>#include <unistd.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <termios.h>
#include <errno.h>
int main(int argc, char **argv){
int fd = open("/dev/tty0" , O_RDWR );
while (1)
{
write(fd, "hello" ,6);
}
}
编译和运行
结果:
0 0
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