HCI_LCD_BRIGHTNESS_MAX
dp->max = HCI_LCD_BRIGHTNESS_MAX;
if (dp->curval > HCI_LCD_BRIGHTNESS_MAX)
dp->curval = HCI_LCD_BRIGHTNESS_MAX;
if (brightness_level++ == HCI_LCD_BRIGHTNESS_MAX)
brightness_level = HCI_LCD_BRIGHTNESS_MAX;
(*brightness > HCI_LCD_BRIGHTNESS_MAX))