1 files changed, 1 insertions, 0 deletions
diff --git a/qemu-char.h b/qemu-char.h
index 56d9954c52..fb96eef3de 100644
--- a/qemu-char.h
+++ b/qemu-char.h
@@ -70,6 +70,7 @@ struct CharDriverState {
     char *label;
     char *filename;
     int opened;
+    int assigned; /* chardev assigned to a device */
     QTAILQ_ENTRY(CharDriverState) next;
 };