devsw

checkpoint: write(fd,"hello\n",6) where fd is a console dev almost works

1 files changed, 11 insertions, 0 deletions

diff --git a/userfs.c b/userfs.c
index b11f3eb..dcdffbb 100644
--- a/userfs.c
+++ b/userfs.c
@@ -20,6 +20,17 @@ main(void)
     puts ("mknod failed\n");
   else
     puts ("made a node\n");
+  fd = open("console", 1);
+  if(fd >= 0){
+    puts("open console ok\n");
+    close(fd);
+  } else {
+    puts("open console failed!\n");
+  }
+  if (write (fd, "hello\n", 6) != 6) {
+    puts ("write to console failed\n");
+  }
+  close (fd);
 
   fd = open("echo", 0);
   if(fd >= 0){