Character driver finished

select_poll/multi2.c

@@ -20,7 +20,7 @@ int main(){
     FD_ZERO(&read_set);
     FD_SET(fd1, &read_set);
     FD_SET(fd2, &read_set);
-
+ 
     n = select(FD_SETSIZE, &read_set, NULL, NULL, &timeout);
     if( n < 0 ){
         perror("select ");
@@ -40,6 +40,9 @@ int main(){
         n = read(fd2, buf, 10);
         printf(" read data = %s from ptwo \n", buf);
     }
+
+    // close(fd1);
+    // close(fd2);
     
     return 0;