lseek(fd, 521, FSEEK_SET);
write(fd, test_sequence, sizeof(test_sequence));
- // 读出我们写的内容
char read_out[256];
+ write(tty, "input: ", 8);
+ int size = read(tty, read_out, 256);
+
+ write(tty, "your input: ", 13);
+ write(tty, read_out, size);
+ write(fd, read_out, size);
+ write(tty, "\n", 1);
+
+ // 读出我们写的内容
lseek(fd, 512, FSEEK_SET);
read(fd, read_out, sizeof(read_out));