http://www.ousob.com --- Legacy Redefined OuSob - File: /wwwroot/clipx/usr/include/linux/lcd.h

/* * LCD Lowlevel Control Abstraction * * Copyright (C) 2003,2004 Hewlett-Packard Company * */ #ifndef _LINUX_LCD_H #define _LINUX_LCD_H #include <linux/device.h> #include <linux/notifier.h> struct lcd_device; struct fb_info; /* This structure defines all the properties of a LCD flat panel. */ struct lcd_properties { /* Owner module */ struct module *owner; /* Get the LCD panel power status (0: full on, 1..3: controller power on, flat panel power off, 4: full off), see FB_BLANK_XXX */ int (*get_power)(struct lcd_device *); /* Enable or disable power to the LCD (0: on; 4: off, see FB_BLANK_XXX) */ int (*set_power)(struct lcd_device *, int power); /* The maximum value for contrast (read-only) */ int max_contrast; /* Get the current contrast setting (0-max_contrast) */ int (*get_contrast)(struct lcd_device *); /* Set LCD panel contrast */ int (*set_contrast)(struct lcd_device *, int contrast); /* Check if given framebuffer device is the one LCD is bound to; return 0 if not, !=0 if it is. If NULL, lcd always matches the fb. */ int (*check_fb)(struct fb_info *); }; struct lcd_device { /* This protects the 'props' field. If 'props' is NULL, the driver that registered this device has been unloaded, and if class_get_devdata() points to something in the body of that driver, it is also invalid. */ struct semaphore sem; /* If this is NULL, the backing module is unloaded */ struct lcd_properties *props; /* The framebuffer notifier block */ struct notifier_block fb_notif; /* The class device structure */ struct class_device class_dev; }; extern struct lcd_device *lcd_device_register(const char *name, void *devdata, struct lcd_properties *lp); extern void lcd_device_unregister(struct lcd_device *ld); #define to_lcd_device(obj) container_of(obj, struct lcd_device, class_dev) #endif