| /* | |
| * 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); |