LCD_LINE3_OFFSET
return show_line(dev, buf, LCD_LINE2_OFFSET, LCD_LINE3_OFFSET);
return show_line(dev, buf, LCD_LINE3_OFFSET, LCD_LINE4_OFFSET);
return store_line(dev, buf, count, LCD_LINE3_OFFSET, LCD_LINE3_SIZE);
#define LCD_LINE4_OFFSET LCD_LINE3_OFFSET + LCD_LINE3_SIZE