patch-2.2.18 linux/include/asm-ppc/backlight.h

• Lines: 29
• Date: Wed Nov 8 23:00:35 2000
• Orig file: v2.2.17/include/asm-ppc/backlight.h
• Orig date: Thu Jan 1 01:00:00 1970

diff -u --new-file --recursive --exclude-from /usr/src/exclude v2.2.17/include/asm-ppc/backlight.h linux/include/asm-ppc/backlight.h
@@ -0,0 +1,28 @@
+/*
+ * Routines for handling backlight control on PowerBooks
+ * 
+ * For now, implementation resides in arch/ppc/kernel/pmac_support.c
+ * 
+ */
+#ifndef __ASM_PPC_BACKLIGHT_H
+#define __ASM_PPC_BACKLIGHT_H
+
+/* Abstract values */
+#define BACKLIGHT_OFF	0
+#define BACKLIGHT_MIN	1
+#define BACKLIGHT_MAX	0xf
+
+struct backlight_controller {
+	int (*set_enable)(int enable, int level, void *data);
+	int (*set_level)(int level, void *data);
+};
+
+extern void register_backlight_controller(struct backlight_controller *ctrler, void *data, char *type);
+extern void unregister_backlight_controller(struct backlight_controller *ctrler, void *data);
+
+extern int set_backlight_enable(int enable);
+extern int get_backlight_enable(void);
+extern int set_backlight_level(int level);
+extern int get_backlight_level(void);
+
+#endif