This commit was manufactured by cvs2svn to create branch 'vserver'.

[linux-2.6.git] / drivers / video / fb_notify.c

diff --git a/drivers/video/fb_notify.c b/drivers/video/fb_notify.c
new file mode 100644 (file)
index 0000000..8c02038
--- /dev/null
+++ b/drivers/video/fb_notify.c
@@ -0,0 +1,46 @@
+/*
+ *  linux/drivers/video/fb_notify.c
+ *
+ *  Copyright (C) 2006 Antonino Daplas <adaplas@pol.net>
+ *
+ *     2001 - Documented with DocBook
+ *     - Brad Douglas <brad@neruo.com>
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file COPYING in the main directory of this archive
+ * for more details.
+ */
+#include <linux/fb.h>
+#include <linux/notifier.h>
+
+static BLOCKING_NOTIFIER_HEAD(fb_notifier_list);
+
+/**
+ *     fb_register_client - register a client notifier
+ *     @nb: notifier block to callback on events
+ */
+int fb_register_client(struct notifier_block *nb)
+{
+       return blocking_notifier_chain_register(&fb_notifier_list, nb);
+}
+EXPORT_SYMBOL(fb_register_client);
+
+/**
+ *     fb_unregister_client - unregister a client notifier
+ *     @nb: notifier block to callback on events
+ */
+int fb_unregister_client(struct notifier_block *nb)
+{
+       return blocking_notifier_chain_unregister(&fb_notifier_list, nb);
+}
+EXPORT_SYMBOL(fb_unregister_client);
+
+/**
+ * fb_notifier_call_chain - notify clients of fb_events
+ *
+ */
+int fb_notifier_call_chain(unsigned long val, void *v)
+{
+       return blocking_notifier_call_chain(&fb_notifier_list, val, v);
+}
+EXPORT_SYMBOL_GPL(fb_notifier_call_chain);