Allow -1 as valid fd in libevdev_change_fd

Add a new flag for "initialized" and separate that from the fd logic. This way,
we can call libevdev_change_fd(dev, -1) to signal that the current fd should be
dropped.

Otherwise libevdev can't be told to release the fd and always keeps a reference
to it.

Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>

1 files changed, 2 insertions, 0 deletions

diff --git a/libevdev/libevdev-int.h b/libevdev/libevdev-int.h
index 21d67d3..847fe56 100644
--- a/libevdev/libevdev-int.h
+++ b/libevdev/libevdev-int.h
@@ -26,6 +26,7 @@
 #include <config.h>
 #include <stdio.h>
 #include <stdlib.h>
+#include <stdbool.h>
 #include <errno.h>
 #include "libevdev.h"
 
@@ -73,6 +74,7 @@ enum SyncState {
 
 struct libevdev {
 	int fd;
+	bool initialized;
 	char *name;
 	char *phys;
 	char *uniq;