Uart driver: on close, wait for output queue to drain.

2015-05-30 16:56:03 -07:00
parent f08aabff03
commit a234dfc7dc
2 changed files with 385 additions and 412 deletions
--- a/sys/include/tty.h
+++ b/sys/include/tty.h
@@ -211,6 +211,11 @@ int ttyselect (struct tty *tp, int rw);
 */
 void ttyflush (struct tty *tp, int rw);

+/*
+ * Wait for output to drain, and flush input.
+ */
+void ttywflush (struct tty *tp);
+
 #endif /* KERNEL */

 /* internal state bits */