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authorDavid Woodhouse <dwmw2@infradead.org>2006-08-30 23:30:38 +0100
committerDavid Woodhouse <dwmw2@infradead.org>2006-08-30 23:30:38 +0100
commit0a7d5f8ce960e74fa22986bda4af488539796e49 (patch)
treee29ad17808a5c3410518e22dae8dfe94801b59f3 /drivers/video/fb_notify.c
parent0165508c80a2b5d5268d9c5dfa9b30c534a33693 (diff)
parentdc709bd190c130b299ac19d596594256265c042a (diff)
Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6
Diffstat (limited to 'drivers/video/fb_notify.c')
-rw-r--r--drivers/video/fb_notify.c46
1 files changed, 46 insertions, 0 deletions
diff --git a/drivers/video/fb_notify.c b/drivers/video/fb_notify.c
new file mode 100644
index 00000000000..8c020389e4f
--- /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);