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-rw-r--r--kernel/include/linux/apple_bl.h26
1 files changed, 26 insertions, 0 deletions
diff --git a/kernel/include/linux/apple_bl.h b/kernel/include/linux/apple_bl.h
new file mode 100644
index 000000000..0a95e730f
--- /dev/null
+++ b/kernel/include/linux/apple_bl.h
@@ -0,0 +1,26 @@
+/*
+ * apple_bl exported symbols
+ */
+
+#ifndef _LINUX_APPLE_BL_H
+#define _LINUX_APPLE_BL_H
+
+#if defined(CONFIG_BACKLIGHT_APPLE) || defined(CONFIG_BACKLIGHT_APPLE_MODULE)
+
+extern int apple_bl_register(void);
+extern void apple_bl_unregister(void);
+
+#else /* !CONFIG_BACKLIGHT_APPLE */
+
+static inline int apple_bl_register(void)
+{
+ return 0;
+}
+
+static inline void apple_bl_unregister(void)
+{
+}
+
+#endif /* !CONFIG_BACKLIGHT_APPLE */
+
+#endif /* _LINUX_APPLE_BL_H */